The 6th edition of How to Get Off Psychiatric Drugs
Safely 2010 Edition, is now available for free at
www.theroadback.org or for
sale at Amazon.com. This
bestselling book details what to do to avoid withdrawal side
effects, what you can do to eliminate existing withdrawal side
effects and how to reduce the medication safely. Before you decide
if this is the book for you to follow, read all chapters on The Road
Back site.
This is the program that has helped over 30,000 people off their
medication and has helped stop the withdrawal side effects, even for
benzodiazepines. The Road Back even offers support throughout the
process for FREE. Read below what a top psychiatrist has to say
about the book and the program.
YOU CAN STOP THE SUFFERING
NOW!
"Here
is an essential handbook on how to safely and more easily wean
yourself (under medical supervision) off the heavily over-prescribed
psychotropic medications. I have used the program with my patients
and it works!” Hyla Cass M.D. Author of Supplement Your Prescription

Wellbutrin Clinical Trials
Lau AJ, Chang TK.
Drug Metab Dispos. 2009 Jun 1. [Epub ahead of
print]
Wellbutrin: 19487249 [Wellbutrin - as supplied
by publisher]
Hays JT, Hurt RD, Decker PA, Croghan IT, Offord KP,
Patten CA.
Nicotine Tob Res. 2009 May 29. [Epub ahead of
print]
Wellbutrin: 19483180 [Wellbutrin - as supplied
by publisher]
Attention-deficit-hyperactivity disorder: an update.
Dopheide JA, Pliszka SR.
Pharmacotherapy. 2009 Jun;29(6):656-79.
Wellbutrin: 19476419 [Wellbutrin - in process]
Pharmacogenetics of smoking cessation therapy.
Kortmann GL, Dobler CJ, Bizarro L, Bau CH.
Am J Med Genet B Neuropsychiatr Genet. 2009 May 27.
[Epub ahead of print]
Wellbutrin: 19475569 [Wellbutrin - as supplied
by publisher]
Antidepressant treatment and smoking cessation in
bipolar disorder.
Dervaux A, Laqueille X.
JAMA. 2009 May 27;301(20):2093; author reply 2093.
No abstract available.
Wellbutrin: 19470985 [Wellbutrin - indexed for
MEDLINE]
A randomized trial of short psychotherapy versus
sustained-release bupropion for smoking cessation.
Zernig G, Wallner R, Grohs U, Kriechbaum N, Kemmler
G, Saria A.
Addiction. 2008 Dec;103(12):2024-31.
Wellbutrin: 19469746 [Wellbutrin - in process]
Structures from powders: Bupropion hydrochloride.
Maccaroni E, Malpezzi L, Masciocchi N.
J Pharm Biomed Anal. 2009 May 3. [Epub ahead of
print]
Wellbutrin: 19464134 [Wellbutrin - as supplied
by publisher]
Moss TG, Sacco KA, Allen TM, Weinberger AH,
Vessicchio JC, George TP.
Drug Alcohol Depend. 2009 May 15. [Epub ahead of
print]
Wellbutrin: 19447570 [Wellbutrin - as supplied
by publisher]
Biała G, Kruk M.
Pharmacol Rep. 2009 Mar-Apr;61(2):236-44.
Wellbutrin: 19443934 [Wellbutrin - in process]
Related Articles
Free article at journal site
Smoking and chronic obstructive pulmonary disease
(COPD). Parallel epidemics of the 21 century.
Laniado-Laborín R.
Int J Environ Res Public Health. 2009
Jan;6(1):209-24. Epub 2009 Jan 9.
Wellbutrin: 19440278 [Wellbutrin - in process]
Related Articles
Free article in PMC
Treatment-emergent sexual dysfunction related to
antidepressants: a meta-analysis.
Serretti A, Chiesa A.
J Clin Psychopharmacol. 2009 Jun;29(3):259-66.
Wellbutrin: 19440080 [Wellbutrin - in process]
Binfaré RW, Rosa AO, Lobato KR, Santos AR,
Rodrigues AL.
Prog Neuropsychopharmacol Biol Psychiatry. 2009 Apr
30;33(3):530-40. Epub 2009 Feb 11.
Wellbutrin: 19439241 [Wellbutrin - in process]
Rubinstein A, García Martí S, Souto A, Ferrante D,
Augustovski F.
Cost Eff Resour Alloc. 2009 May 6;7:10.
Wellbutrin: 19419570 [Wellbutrin - in process]
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Free article in PMC | at journal site
Yatham LN, Kennedy SH, Schaffer A, Parikh SV,
Beaulieu S, O'Donovan C, MacQueen G, McIntyre RS, Sharma V, Ravindran A, Young
LT, Young AH, Alda M, Milev R, Vieta E, Calabrese JR, Berk M, Ha K, Kapczinski
F.
Bipolar Disord. 2009 May;11(3):225-55.
Wellbutrin: 19419382 [Wellbutrin - in process]
[Combining Antidepressants: a Useful Strategy for
Therapy Resistant Depression?]
Schmauß M, Messer T.
Fortschr Neurol Psychiatr. 2009 May 4. [Epub ahead
of print] German.
Wellbutrin: 19415584 [Wellbutrin - as supplied
by publisher]
Painter MM, Buerkley MA, Julius ML, Vajda AM,
Norris DO, Barber LB, Furlong ET, Schultz MM, Schoenfuss HL.
Environ Toxicol Chem. 2009 Apr 30:1. [Epub ahead of
print]
Wellbutrin: 19405782 [Wellbutrin - as supplied
by publisher]
Sustained-release bupropion for hospital-based
smoking cessation: A randomized trial.
Simon JA, Duncan C, Huggins J, Solkowitz S, Carmody
TP.
Nicotine Tob Res. 2009 Jun;11(6):663-669. Epub 2009
Apr 24.
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by publisher]
Illicit drug use as a predictor of smoking cessation
treatment outcome.
Stapleton JA, Keaney F, Sutherland G.
Nicotine Tob Res. 2009 Jun;11(6):685-689. Epub 2009
Apr 24.
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by publisher]
Varenicline: a first-line treatment option for
smoking cessation.
Garrison GD, Dugan SE.
Clin Ther. 2009 Mar;31(3):463-91.
Wellbutrin: 19393839 [Wellbutrin - in process]
Extended treatment of older cigarette smokers.
Hall SM, Humfleet GL, Muñoz RF, Reus VI, Robbins
JA, Prochaska JJ.
Addiction. 2009 Jun;104(6):1043-52. Epub 2009 Apr
9.
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Insomnia in patients with depression: some
pathophysiological and treatment considerations.
Jindal RD.
CNS Drugs. 2009;23(4):309-29. doi:
10.2165/00023210-200923040-00004.
Wellbutrin: 19374460 [Wellbutrin - in process]
Escitalopram versus other antidepressive agents for
depression.
Cipriani A, Santilli C, Furukawa TA, Signoretti A,
Nakagawa A, McGuire H, Churchill R, Barbui C.
Cochrane Database Syst Rev. 2009 Apr
15;(2):CD006532. Review.
Wellbutrin: 19370639 [Wellbutrin - in process]
Sertraline versus other antidepressive agents for
depression.
Cipriani A, La Ferla T, Furukawa TA, Signoretti A,
Nakagawa A, Churchill R, McGuire H, Barbui C.
Cochrane Database Syst Rev. 2009 Apr
15;(2):CD006117. Review.
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Plodkowski RA, Nguyen Q, Sundaram U, Nguyen L, Chau
DL, St Jeor S.
Expert Opin Pharmacother. 2009 Apr;10(6):1069-81.
Wellbutrin: 19364254 [Wellbutrin - in process]
Tobacco dependence and withdrawal: Science base,
challenges and opportunities for pharmacotherapy.
Henningfield JE, Shiffman S, Ferguson SG, Gritz ER.
Pharmacol Ther. 2009 Jul;123(1):1-16. Epub 2009 Apr
8.
Wellbutrin: 19362108 [Wellbutrin - as supplied
by publisher]
PRECLINICAL EVALUATION OF THE ABUSE POTENTIAL OF THE
ANALGESIC BICIFADINE.
Nicholson KL, Balster RL, Golembiowska K, Kowalska
M, Tizzano JP, Skolnick P, Basile AS.
J Pharmacol Exp Ther. 2009 Apr 8. [Epub ahead of
print]
Wellbutrin: 19357320 [Wellbutrin - as supplied
by publisher]
Related Articles
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Triple-combination pharmacotherapy for medically ill
smokers: a randomized trial.
Steinberg MB, Greenhaus S, Schmelzer AC, Bover MT,
Foulds J, Hoover DR, Carson JL.
Ann Intern Med. 2009 Apr 7;150(7):447-54.
Wellbutrin: 19349630 [Wellbutrin - indexed for
MEDLINE]
Effect of varying levels of disease management on
smoking cessation: a randomized trial.
Ellerbeck EF, Mahnken JD, Cupertino AP, Cox LS,
Greiner KA, Mussulman LM, Nazir N, Shireman TI, Resnicow K, Ahluwalia JS.
Ann Intern Med. 2009 Apr 7;150(7):437-46.
Wellbutrin: 19349629 [Wellbutrin - indexed for
MEDLINE]
Summaries for patients. Comparison of 3 strategies
to quit smoking.
[No authors listed]
Ann Intern Med. 2009 Apr 7;150(7):I-36. No abstract
available.
Wellbutrin: 19349626 [Wellbutrin - indexed for
MEDLINE]
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Free article at journal site
Gariti P, Lynch K, Alterman A, Kampman K, Xie H,
Varillo K.
J Subst Abuse Treat. 2009 Mar 30. [Epub ahead of
print]
Wellbutrin: 19339135 [Wellbutrin - as supplied
by publisher]
Arias HR, Gumilar F, Rosenberg A, Targowska-Duda
KM, Feuerbach D, Jozwiak K, Moaddel R, Wainer IW, Bouzat C.
Biochemistry. 2009 Apr 10. [Epub ahead of print]
Wellbutrin: 19334677 [Wellbutrin - as supplied
by publisher]
Einarson A, Choi J, Einarson TR, Koren G.
Can J Psychiatry. 2009 Apr;54(4):242-6.
Wellbutrin: 19321030 [Wellbutrin - in process]
Self-reported smoking cessation activities among
Swiss primary care physicians.
Jacot Sadowski I, Ruffieux C, Cornuz J.
BMC Fam Pract. 2009 Mar 25;10:22.
Wellbutrin: 19320964 [Wellbutrin - indexed for
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Related Articles
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Ghibellini G, Park J, Brittain CF, Iavarone L,
Andorn AC, Levy N, Muir KT.
J Clin Pharmacol. 2009 Apr;49(4):489-95. No
abstract available.
Wellbutrin: 19318697 [Wellbutrin - in process]
An investigation of bupropion substitution for the
interoceptive stimulus effects of nicotine.
Wilkinson J, Carroll F, Bevins R.
J Psychopharmacol. 2009 Mar 20. [Epub ahead of
print]
Wellbutrin: 19304864 [Wellbutrin - as supplied
by publisher]
Biala G, Kruk M.
J Pharm Pharmacol. 2009 Apr;61(4):493-502.
Wellbutrin: 19298697 [Wellbutrin - in process]
[Cost effectiveness analysis of varenicline
(Champix) for the treatment of smoking in Spain]
Fernández de Bobadilla Osorio J, Sánchez-Maestre C,
Brosa Riestra M, Arroyo O, Sanz de Burgoa V, Wilson K.
An Med Interna. 2008 Jul;25(7):342-8. Spanish.
Wellbutrin: 19295994 [Wellbutrin - in process]
Related Articles
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Treatment-resistant depression and mortality after
acute coronary syndrome.
Carney RM, Freedland KE.
Am J Psychiatry. 2009 Apr;166(4):410-7. Epub 2009
Mar 16. Review.
Wellbutrin: 19289455 [Wellbutrin - indexed for
MEDLINE]
Smoking cessation in chronic obstructive pulmonary
disease.
Tashkin DP, Murray RP.
Respir Med. 2009 Mar 14. [Epub ahead of print]
Wellbutrin: 19285850 [Wellbutrin - as supplied
by publisher]
Four years' follow up at a smoking cessation clinic.
Aguiar M, Todo-Bom F, Felizardo M, Macedo R, Caeiro
F, Sotto-Mayor R, Bugalho de Almeida A.
Rev Port Pneumol. 2009 Mar-Apr;15(2):179-97.
English, Portuguese.
Wellbutrin: 19280068 [Wellbutrin - in process]
[The relevance of dopamine agonists in the treatment
of depression]
Clausius N, Born C, Grunze H.
Neuropsychiatr. 2009;23(1):15-25. Review. German.
Wellbutrin: 19272288 [Wellbutrin - indexed for
MEDLINE]
Rajkumar R, Pandey DK, Mahesh R, Radha R.
Eur J Pharmacol. 2009 Apr 17;608(1-3):32-41. Epub
2009 Mar 6.
Wellbutrin: 19269287 [Wellbutrin - in process]
Bupropion levels in breast milk for 4 mother-infant
pairs: more answers to lingering questions.
Davis MF, Miller HS, Nolan PE Jr.
J Clin Psychiatry. 2009 Feb;70(2):297-8. No
abstract available.
Wellbutrin: 19265649 [Wellbutrin - indexed for
MEDLINE]
Wang X, Hripcsak G, Markatou M, Friedman C.
J Am Med Inform Assoc. 2009 May-Jun;16(3):328-37.
Epub 2009 Mar 4.
Wellbutrin: 19261932 [Wellbutrin - in process]
[Smoking cessation with special focus on primary
health care]
Bredesen H, Lous J.
Ugeskr Laeger. 2009 Feb 23;171(9):683-8. Danish.
Wellbutrin: 19257992 [Wellbutrin - indexed for
MEDLINE]
Quaak M, van Schayck CP, Knaapen AM, van Schooten
FJ.
Eur Respir J. 2009 Mar;33(3):468-80.
Wellbutrin: 19251795 [Wellbutrin - in process]
Intention to quit moderates the effect of bupropion
on smoking urge.
Tidey JW, Rohsenow DJ.
Nicotine Tob Res. 2009 Mar;11(3):308-12. Epub 2009
Feb 26.
Wellbutrin: 19246631 [Wellbutrin - in process]
Varenicline and bupropion sustained-release
combination therapy for smoking cessation.
Ebbert JO, Croghan IT, Sood A, Schroeder DR, Hays
JT, Hurt RD.
Nicotine Tob Res. 2009 Mar;11(3):234-9. Epub 2009
Feb 25.
Wellbutrin: 19246427 [Wellbutrin - in process]
A reader responds to "Seven pharmacotherapies do
promote smoking abstinence at 6 and 12 months".
Talwar A, Jain M, Arora G.
Medscape J Med. 2008;10(12):291. Epub 2008 Dec 26.
No abstract available.
Wellbutrin: 19242597 [Wellbutrin - indexed for
MEDLINE]
Related Articles
Free article in PMC
Gervasoni N, Bryois C, Barbe R, Bertschy G.
Rev Med Suisse. 2009 Jan 14;5(186):138-42. French.
Wellbutrin: 19238934 [Wellbutrin - indexed for
MEDLINE]
Verbeeck W, Tuinier S, Bekkering GE.
Adv Ther. 2009 Feb;26(2):170-84. Epub 2009 Feb 23.
Wellbutrin: 19238340 [Wellbutrin - in process]
A preliminary benefit-risk assessment of varenicline
in smoking cessation.
Cahill K, Stead L, Lancaster T.
Drug Saf. 2009;32(2):119-35. doi:
10.2165/00002018-200932020-00005. Review.
Wellbutrin: 19236119 [Wellbutrin - indexed for
MEDLINE]
Nocturnal sleep-disturbing nicotine craving and
accomplishment with a smoking cessation program.
Riemerth A, Kunze U, Groman E.
Wien Med Wochenschr. 2009;159(1-2):47-52.
Wellbutrin: 19225735 [Wellbutrin - indexed for
MEDLINE]
[Varenicline - pharmacological therapy of tobacco
dependence]
Tschabitscher P, Homaier I, Lichtenschopf A, Groman
E.
Wien Med Wochenschr. 2009;159(1-2):17-23. German.
Wellbutrin: 19225731 [Wellbutrin - indexed for
MEDLINE]
Regular exercise as a protective factor in relapse
following smoking cessation treatment.
Abrantes AM, Strong DR, Lloyd-Richardson EE, Niaura
R, Kahler CW, Brown RA.
Am J Addict. 2009 Jan-Feb;18(1):100-1. No abstract
available.
Wellbutrin: 19219672 [Wellbutrin - indexed for
MEDLINE]
Carpenter KM, McDowell D, Brooks DJ, Cheng WY,
Levin FR.
Am J Addict. 2009 Jan-Feb;18(1):53-64.
Wellbutrin: 19219666 [Wellbutrin - indexed for
MEDLINE]
Smoking cessation increases serum adiponectin levels
in an apparently healthy Greek population.
Efstathiou SP, Skeva II, Dimas C, Panagiotou A,
Parisi K, Tzanoumis L, Kafouri A, Bakratsas K, Mountokalakis TD.
Atherosclerosis. 2009 Jan 24. [Epub ahead of print]
Wellbutrin: 19217624 [Wellbutrin - as supplied
by publisher]
Simon HB.
Harv Mens Health Watch. 2009 Jan;13(6):8. No
abstract available.
Wellbutrin: 19216119 [Wellbutrin - indexed for
MEDLINE]
Lucero CA, Moss DR, Davies ED, Colborn K, Barnhart
WC, Bogen DL.
Breastfeed Med. 2009 Feb 11. [Epub ahead of print]
Wellbutrin: 19210131 [Wellbutrin - as supplied
by publisher]
Cost-effective primary care-based strategies to
improve smoking cessation: more value for money.
Salize HJ, Merkel S, Reinhard I, Twardella D, Mann
K, Brenner H.
Arch Intern Med. 2009 Feb 9;169(3):230-5;
discussion 235-6.
Wellbutrin: 19204212 [Wellbutrin - indexed for
MEDLINE]
Smoking Coca Paste and crack-tobacco must be treated
as double addiction.
Llosa T.
Subst Abus. 2009 Jan-Mar;30(1):81. No abstract
available.
Wellbutrin: 19197785 [Wellbutrin - indexed for
MEDLINE]
Bupropion as a possible treatment option for
restless legs syndrome.
Lee JJ, Erdos J, Wilkosz MF, LaPlante R, Wagoner B.
Ann Pharmacother. 2009 Feb;43(2):370-4. Epub 2009
Feb 3.
Wellbutrin: 19193596 [Wellbutrin - in process]
Dent LA, Harris KJ, Noonan CW.
Ann Pharmacother. 2009 Feb;43(2):194-201. Epub 2009
Feb 3.
Wellbutrin: 19193572 [Wellbutrin - in process]
Bond DJ, Noronha MM, Kauer-Sant'Anna M, Lam RW,
Yatham LN.
J Clin Psychiatry. 2008 Oct;69(10):1589-601.
Review.
Wellbutrin: 19192442 [Wellbutrin - indexed for
MEDLINE]
[Pharmacotherapy of smoking cessation with
application of nicotine and nicotine free drugs]
Florek E, Piekoszewski W.
Przegl Lek. 2008;65(10):700-5. Review. Polish.
Wellbutrin: 19189582 [Wellbutrin - indexed for
MEDLINE]
[Smoking cessation as regards anesthesia and
surgery]
Billert H, Gaca M, Adamski D.
Przegl Lek. 2008;65(10):687-91. Review. Polish.
Wellbutrin: 19189579 [Wellbutrin - indexed for
MEDLINE]
Tobacco in prisons: a focus group study.
Richmond R, Butler T, Wilhelm K, Wodak A,
Cunningham M, Anderson I.
Tob Control. 2009 Jun;18(3):176-82. Epub 2009 Feb
2.
Wellbutrin: 19188210 [Wellbutrin - in process]
Cipriani A, Furukawa TA, Salanti G, Geddes JR,
Higgins JP, Churchill R, Watanabe N, Nakagawa A, Omori IM, McGuire H, Tansella
M, Barbui C.
Lancet. 2009 Feb 28;373(9665):746-58. Review.
Wellbutrin: 19185342 [Wellbutrin - indexed for
MEDLINE]
Pharmacotherapy for tobacco dependence.
Fant RV, Buchhalter AR, Buchman AC, Henningfield
JE.
Handb Exp Pharmacol. 2009;(192):487-510. Review.
Wellbutrin: 19184660 [Wellbutrin - indexed for
MEDLINE]
Nicotine Dependence Pharmacogenetics: Role of
Genetic Variation in Nicotine-Metabolizing Enzymes.
Ray R, Tyndale RF, Lerman C.
J Neurogenet. 2009 Jan 23:1-10. [Epub ahead of
print]
Wellbutrin: 19169923 [Wellbutrin - as supplied
by publisher]
Lin HL, Zhang H, Hollenberg PF.
J Pharmacol Exp Ther. 2009 Apr;329(1):26-37. Epub
2009 Jan 23.
Wellbutrin: 19168709 [Wellbutrin - indexed for
MEDLINE]
Bauer M, Tharmanathan P, Volz HP, Moeller HJ,
Freemantle N.
Eur Arch Psychiatry Clin Neurosci. 2009
Apr;259(3):172-85. Epub 2009 Jan 22.
Wellbutrin: 19165525 [Wellbutrin - in process]
Hewett K, Chrzanowski W, Jokinen R, Felgentreff R,
Shrivastava R, Gee M, Wightman D, O'Leary M, Millen L, Leon M, Briggs M, Krishen
A, Modell J.
J Psychopharmacol. 2009 Jan 22. [Epub ahead of
print]
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by publisher]
Miladi A.
Mil Med. 2008 Oct;173(10):1042-3. Review.
Wellbutrin: 19160627 [Wellbutrin - indexed for
MEDLINE]
[No authors listed]
Harv Ment Health Lett. 2008 Dec;25(6):1-3. No
abstract available.
Wellbutrin: 19160573 [Wellbutrin - indexed for
MEDLINE]
Interventions for preventing weight gain after
smoking cessation.
Parsons AC, Shraim M, Inglis J, Aveyard P, Hajek P.
Cochrane Database Syst Rev. 2009 Jan
21;(1):CD006219. Review.
Wellbutrin: 19160269 [Wellbutrin - indexed for
MEDLINE]
Relapse prevention interventions for smoking
cessation.
Hajek P, Stead LF, West R, Jarvis M, Lancaster T.
Cochrane Database Syst Rev. 2009 Jan
21;(1):CD003999. Review.
Wellbutrin: 19160228 [Wellbutrin - indexed for
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McEwen A, West R.
BMC Public Health. 2009 Jan 21;9:28.
Wellbutrin: 19159473 [Wellbutrin - indexed for
MEDLINE]
Related Articles
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A survey of tobacco dependence treatment services in
36 countries.
Raw M, Regan S, Rigotti NA, McNeill A.
Addiction. 2009 Feb;104(2):279-87.
Wellbutrin: 19149825 [Wellbutrin - indexed for
MEDLINE]
Evaluation of risk factors for elevated tricyclic
antidepressant plasma concentrations.
Billups SJ, Delate T, Dugan D.
Pharmacoepidemiol Drug Saf. 2009 Mar;18(3):253-7.
Wellbutrin: 19148878 [Wellbutrin - indexed for
MEDLINE]
Domino EF, Tsukada H, Harada N.
Psychopharmacology (Berl). 2009 May;204(1):149-53.
Epub 2009 Jan 10.
Wellbutrin: 19137279 [Wellbutrin - in process]
Sex heterogeneity in pharmacogenetic smoking
cessation clinical trials.
Schnoll RA, Patterson F.
Drug Alcohol Depend. 2009 Jan 7. [Epub ahead of
print]
Wellbutrin: 19135319 [Wellbutrin - as supplied
by publisher]
[Specific program for smoking cessation: thus your
patients become nonsmokers]
Hering T.
MMW Fortschr Med. 2008 Nov 13;150(46):42-3. German.
No abstract available.
Wellbutrin: 19133359 [Wellbutrin - indexed for
MEDLINE]
A 51-year-old woman with bipolar disorder who wants
to quit smoking.
Schroeder SA.
JAMA. 2009 Feb 4;301(5):522-31. Epub 2009 Jan 6.
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MEDLINE]
Pharmacotherapy for smoking cessation.
Carrozzi L, Pistelli F, Viegi G.
Ther Adv Respir Dis. 2008 Oct;2(5):301-17. Review.
Wellbutrin: 19124379 [Wellbutrin - indexed for
MEDLINE]
Smoking cessation treatment in a real-life setting:
the Greek experience.
Rovina N, Nikoloutsou I, Dima E, Michailidou M,
Roussos C, Gratziou C.
Ther Adv Respir Dis. 2007 Dec;1(2):93-104.
Wellbutrin: 19124351 [Wellbutrin - indexed for
MEDLINE]
Park YM, Lee HJ, Kang SG, Choo CS, Cho JH.
Prog Neuropsychopharmacol Biol Psychiatry. 2009 Mar
17;33(2):380-1. Epub 2008 Dec 13. No abstract available.
Wellbutrin: 19121360 [Wellbutrin - indexed for
MEDLINE]
Helping smokers quit: understanding the barriers to
utilization of smoking cessation services.
Gollust SE, Schroeder SA, Warner KE.
Milbank Q. 2008 Dec;86(4):601-27.
Wellbutrin: 19120982 [Wellbutrin - indexed for
MEDLINE]
Richert L, Tuschl G, Abadie C, Blanchard N,
Pekthong D, Mantion G, Weber JC, Mueller SO.
Toxicol Appl Pharmacol. 2009 Feb 15;235(1):86-96.
Epub 2008 Dec 10.
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MEDLINE]
Bupropion-associated QRS prolongation unresponsive
to sodium bicarbonate therapy.
Wills BK, Zell-Kanter M, Aks SE.
Am J Ther. 2009 Mar-Apr;16(2):193-6.
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MEDLINE]
A review of co-morbid depression in pediatric ADHD:
etiology, phenomenology, and treatment.
Daviss WB.
J Child Adolesc Psychopharmacol. 2008
Dec;18(6):565-71. Review.
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MEDLINE]
Silverstone PH, Williams R, McMahon L, Fleming R,
Fogarty S.
Ann Gen Psychiatry. 2008 Dec 23;7:27.
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Lamarche K.
Evid Based Nurs. 2009 Jan;12(1):10. No abstract
available.
Wellbutrin: 19103828 [Wellbutrin]
Paterson NE.
Eur J Pharmacol. 2009 Jan 28;603(1-3):1-11. Epub
2008 Dec 16. Review.
Wellbutrin: 19101536 [Wellbutrin - indexed for
MEDLINE]
Nicotine exposure during adolescence induces a
depression-like state in adulthood.
Iñiguez SD, Warren BL, Parise EM, Alcantara LF,
Schuh B, Maffeo ML, Manojlovic Z, Bolaños-Guzmán CA.
Neuropsychopharmacology. 2009 May;34(6):1609-24.
Epub 2008 Dec 17.
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Wilkinson JL, Li C, Bevins RA.
Addict Biol. 2009 Apr;14(2):165-73. Epub 2008 Dec
12.
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Fan L, Wang JC, Jiang F, Tan ZR, Chen Y, Li Q,
Zhang W, Wang G, Lei HP, Hu DL, Wang D, Zhou HH.
Eur J Clin Pharmacol. 2009 Apr;65(4):403-9. Epub
2008 Dec 9.
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MEDLINE]
Tobacco smoking cessation management: integrating
varenicline in current practice.
Galanti LM.
Vasc Health Risk Manag. 2008;4(4):837-45. Review.
Wellbutrin: 19066000 [Wellbutrin - indexed for
MEDLINE]
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Cardoso CC, Lobato KR, Binfaré RW, Ferreira PK,
Rosa AO, Santos AR, Rodrigues AL.
Prog Neuropsychopharmacol Biol Psychiatry. 2009 Mar
17;33(2):235-42. Epub 2008 Nov 27.
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MEDLINE]
Nishiya Y, Hagihara K, Ito T, Tajima M, Miura S,
Kurihara A, Farid NA, Ikeda T.
Drug Metab Dispos. 2009 Mar;37(3):589-93. Epub 2008
Dec 1.
Wellbutrin: 19047469 [Wellbutrin - in process]
Wellbutrin - Alert from the F.D.A.
FDA ALERT [07/2005]: Suicidal Thoughts or Actions in Children and AdultsPatients with depression or other mental illnesses often think about or attempt suicide. Closely watch anyone taking antidepressants, especially early in treatment or when the dose is changed. Patients who become irritable or anxious, or have new or increased thoughts of suicide or other changes in mood or behavior (or their care givers) should contact their healthcare professional right away.
Children
Taking antidepressants may increase suicidal thoughts and actions in about 1 out of 50 people 18 years or younger. FDA has approved Zoloft for use in children only if they have obsessive-compulsive disorder.
Adults
Several recent scientific publications report the possibility of an increased risk for suicidal behavior in adults who are being treated with antidepressant medications. Even before these reports became available, FDA began a complete review of all available data to determine whether there is an increased risk of suicidal thinking or behavior in adults being treated with antidepressant medications. It is expected that this review will take a year or longer to complete. In the meantime, FDA is highlighting that adults being treated with antidepressant medication, particularly those being treated for depression, should be watched closely for worsening of depression and for increased suicidal thinking or behavior.
This information reflects FDA’s preliminary analysis of data concerning this drug. FDA is considering, but has not reached a final conclusion about, this information. FDA intends to update this sheet when additional information or analyses become available.
Wellbutrin withdrawal Flushing - The skin all over the body turns red.
Wellbutrin withdrawal Varicose Vein - Unusually swollen veins near the surface of the skin that sometimes appear twisted and knotted, but always enlarged. They are called hemorrhoids when they appear around the rectum. The cause is attributed to hereditary weakness in the veins aggravated by obesity, pregnancy, pressure from standing, aging, etc. Severe cases may develop swelling in the legs, ankles and feet, eczema and/or ulcers in the affected areas.
Wellbutrin withdrawal Abdominal Cramp/Pain - Sudden, severe, uncontrollable and painful shortening and thickening of the muscles in the belly. The belly includes the stomach as well as the intestines, liver, kidneys, pancreas, spleen, gall bladder, and urinary bladder.
Wellbutrin withdrawal Belching - Noisy release of gas from the stomach through the mouth; a burp.
Wellbutrin withdrawal Bloating - Swelling of the belly caused by excessive intestinal gas.
Wellbutrin withdrawal Constipation - Difficulty in having a bowel movement where the material in the bowels is hard due to a lack of exercise, fluid intake, and roughage in the diet, or due to certain drugs.
Wellbutrin withdrawal Diarrhea - Unusually frequent and excessive, runny bowel movements that may result in severe dehydration and shock.
Wellbutrin withdrawal Dyspepsia - Indigestion. This is the discomfort you experience after eating. It can be heartburn, gas, nausea, a bellyache or bloating.
Wellbutrin withdrawal Flatulence - More gas than normal in the digestive organs.
Wellbutrin withdrawal Gagging - Involuntary choking and/or involuntary throwing up.
Wellbutrin withdrawal Gastritis - A severe irritation of the mucus lining of the stomach either short in duration or lasting for a long period of time.
Wellbutrin withdrawal Gastroenteritis - A condition where the membranes of the stomach and intestines are irritated.
Wellbutrin withdrawal Gastroesophageal Reflux - A continuous state where stomach juices flow back into the throat causing acid indigestion and heartburn and possibly injury to the throat.
Wellbutrin withdrawal Heartburn - A burning pain in the area of the breastbone caused by stomach juices flowing back up into the throat.
Wellbutrin withdrawal Hemorrhoids - Small rounded purplish swollen veins that either bleed, itch or are painful and appear around the anus.
Wellbutrin withdrawal Increased Stool frequency - Diarrhea.
Wellbutrin withdrawal Indigestion - Unable to properly consume and absorb food in the digestive tract causing constipation, nausea, stomach ache, gas, swollen belly, pain and general discomfort or sickness.
Wellbutrin withdrawal Nausea - Stomach irritation with a queasy sensation similar to motion sickness and a feeling that one is going to vomit.
Wellbutrin withdrawal Polyposis Gastric - Tumors that grow on stems in the lining of the stomach, which usually become cancerous.
Wellbutrin withdrawal Swallowing Difficulty - A feeling that food is stuck in the throat or upper chest area and won’t go down, making it difficult to swallow.
Wellbutrin withdrawal Toothache - Pain in a tooth above and below the gum line.
Wellbutrin withdrawal Vomiting - Involuntarily throwing up the contents of the stomach and usually getting a nauseated, sick feeling just prior to doing so.
Wellbutrin withdrawal Back Discomfort - Severe physical distress in the area from the neck to the pelvis along the backbone.
Wellbutrin withdrawal Bilirubin Increased - Bilirubin is a waste product of the breakdown of old blood cells. Bilirubin is sent to the liver to be made water-soluble so it can be eliminated from the body through emptying the bladder. A drug can interfere with or damage this normal liver function creating liver disease.
Wellbutrin withdrawal Decreased Weight - Uncontrolled and measured loss of heaviness or weight.
Wellbutrin withdrawal Gout - A severe arthritis condition that is caused by the dumping of a waste product called uric acid in the tissues and joints. It can become worse and cause the body to develop a deformity after going through stages of pain, inflammation, severe tenderness, and stiffness.
Wellbutrin withdrawal Hepatic Enzymes Increased - An increase in the amount of paired liver proteins that regulate liver processes causing a condition where the liver functions abnormally.
Wellbutrin withdrawal Hypercholesterolemia - Too much cholesterol in the blood cells.
Wellbutrin withdrawal Hyperglycemia - An unhealthy amount of sugar in the blood.
Wellbutrin withdrawal Increased Weight - A concentration and storage of fat in the body accumulating over a period of time caused by unhealthy eating patterns, that can predispose the body to many disorders and diseases.
Wellbutrin withdrawal Jaw Pain - The pain due to irritation and swelling of the nerves associated with the mouth area where it opens and closes just in front of the ear. Some of the symptoms are pain when chewing, head aches, losing your balance, stuffy ears or ringing in the ears, and teeth grinding.
Wellbutrin withdrawal Jaw Stiffness - The result of squeezing and grinding the teeth while asleep that can cause your teeth to deteriorate as well as the muscles and joints of the jaw.
Wellbutrin withdrawal Joint Stiffness - A loss of free motion and easy flexibility where any two bones come together.
Wellbutrin withdrawal Muscle Cramp - When muscles contract uncontrollably without warning and do not relax. The muscles of any of the body’s organs can cramp.
Wellbutrin withdrawal Muscle Stiffness - Tightening of muscles making it difficult to bend.
Wellbutrin withdrawal Muscle Weakness - Loss of physical strength.
Wellbutrin withdrawal Myalgia - A general widespread pain and tenderness of the muscles.
Wellbutrin withdrawal Carpal Tunnel Syndrome - A pinched nerve in the wrist that causes pain, tingling, and numbing.
Wellbutrin withdrawal Coordination Abnormal - A lack of normal, harmonious interaction of the parts of the body when it is in motion.
Wellbutrin withdrawal Dizziness - Losing one’s balance while feeling unsteady and lightheaded which may lead to fainting.
Wellbutrin withdrawal Disequilibrium - Lack of mental and emotional balance.
Wellbutrin withdrawal Faintness - A temporary condition where one is likely to go unconscious and fall.
Wellbutrin withdrawal Headache - A sharp or dull persistent pain in the head
Wellbutrin withdrawal Hyperreflexia - A not normal and involuntary increased response in the tissues connecting the bones to the muscles.
Wellbutrin withdrawal Light-headed Feeling – Uncontrolled and usually brief loss of consciousness caused by lack of oxygen to the brain.
Wellbutrin withdrawal Migraine - Reoccurring severe head pain usually with nausea, vomiting, dizziness, flashes or spots before the eyes, and ringing in the ears
Wellbutrin withdrawal Muscle Contractions Involuntary - Spontaneous and uncontrollable tightening reaction of the muscles caused by electrical impulses from the nervous system.
Wellbutrin withdrawal Muscular Tone Increased - Uncontrolled and exaggeration muscle tension. Muscles are normally partially tensed and this is what gives us muscle tone.
Wellbutrin withdrawal Paresthesia - Burning, prickly, itchy, or tingling skin with no obvious or understood physical cause.
Wellbutrin withdrawal Restless Legs - A need to move the legs without any apparent reason. Sometimes there is pain, twitching, jerking, cramping, burning, or a creepy-crawly sensation associated with the movements. It worsens when a person is inactive and can interrupt one’s sleep so one feels the need to move to gain some relief.
Wellbutrin withdrawal Shaking - Uncontrolled quivering and trembling as if one is cold and chilled.
Wellbutrin withdrawal Sluggishness - Lack of alertness and energy, as well as being slow to respond or perform in life.
Wellbutrin withdrawal Tics - A contraction of a muscle causing a repeated movement not under the control of the person usually on the face or limbs.
Wellbutrin withdrawal Tremor - A nervous and involuntary vibrating or quivering of the body.
Wellbutrin withdrawal Twitching - Sharp, jerky and spastic motion sometimes with a sharp sudden pain.
Wellbutrin withdrawal Vertigo - A sensation of dizziness with disorientation and confusion.
Wellbutrin withdrawal Aggravated Nervousness - A progressively worsening, irritated and troubled state of mind.
Wellbutrin withdrawal Agitation - Suddenly violent and forceful, emotionally disturbed state of mind.
Wellbutrin withdrawal Amnesia - Long term or short term, partial or full memory loss created by emotional or physical shock, severe illness, or a blow to the head where the person was caused pain and became unconsciousness.
Wellbutrin withdrawal Anxiety Attack - Sudden and intense feelings of fear, terror, and dread physically creating shortness of breath, sweating, trembling and heart palpitations.
Wellbutrin withdrawal Apathy - Complete lack of concern or interest for things that ordinarily would be regarded as important or would normally cause concern.
Wellbutrin withdrawal Appetite Decreased - Having a lack of appetite despite the ordinary caloric demands of living with a resulting unintentional loss of weight.
Wellbutrin withdrawal Appetite Increased - An unusual hunger causing one to overeat.
Wellbutrin withdrawal Auditory Hallucination - Hearing things without the voices or noises being present.
Wellbutrin withdrawal Bruxism - Grinding and clenching of teeth while sleeping.
Wellbutrin withdrawal Carbohydrate Craving - A drive and craving to eat foods rich in sugar and starches (sweets, snacks and junk foods) that intensifies as the diet becomes more and more unbalanced due to the unbalancing of the proper nutritional requirements of the body.
Wellbutrin withdrawal Concentration Impaired - Unable to easily focus your attention for long periods of time.
Wellbutrin withdrawal Confusion - Not able to think clearly and understand in order to make a logical decision.
Wellbutrin withdrawal Crying Abnormal - Unusual and not normal fits of weeping for short or long periods of time for no apparent reason.
Wellbutrin withdrawal Depersonalization - A condition where one has lost a normal sense of personal identity.
Wellbutrin withdrawal Depression - A hopeless feeling of failure, loss and sadness that can deteriorate into thoughts of death.
Wellbutrin withdrawal Disorientation - A loss of sense of direction, place, time or surroundings as well as mental confusion on personal identity.
Wellbutrin withdrawal Dreaming Abnormal - Dreaming that leaves a very clear, detailed picture and impression when awake that can last for a long period of time and sometimes be unpleasant.
Wellbutrin withdrawal Emotional Lability - Suddenly breaking out in laughter or crying or doing both without being able to control the outburst of emotion. These episodes are unstable as they are caused by things that normally would not have this effect on an individual.
Wellbutrin withdrawal Excitability - Uncontrollably responding to stimuli.
Wellbutrin withdrawal Feeling Unreal - The awareness that one has an undesirable emotion like fear but can’t seem to shake off the irrational feeling. For example, feeling like one is going crazy but rationally knowing that it is not true. The quality of this side effect resembles being in a bad dream and not being able to wake up.
Wellbutrin withdrawal Forgetfulness - Unable to remember what one ordinarily would remember.
Wellbutrin withdrawal Insomnia - Sleeplessness caused by physical stress, mental stress or stimulants such as coffee or medications; it is a condition of being abnormally awake when one would ordinarily be able to fall and remain asleep.
Wellbutrin withdrawal Irritability - Abnormally annoyed in response to a stimulus.
Wellbutrin withdrawal Jitteriness - Nervous fidgeting without an apparent cause.
Wellbutrin withdrawal Lethargy - Mental and physical sluggishness and apathy that can deteriorate into an unconscious state resembling deep sleep. A numbed state of mind.
Wellbutrin withdrawal Libido Decreased - An abnormal loss of sexual energy or desire.
Wellbutrin withdrawal Panic Reaction - A sudden, overpowering, chaotic and confused mental state of terror resulting in being doubt ridden often accompanied with hyperventilation, and extreme anxiety.
Wellbutrin withdrawal Restlessness Aggravated - A constantly worsening troubled state of mind characterized by the person being increasingly nervous, unable to relax, and easily angered.
Wellbutrin withdrawal Somnolence - Feeling sleepy all the time or having a condition of semi-consciousness.
Wellbutrin withdrawal Suicide Attempt - An unsuccessful deliberate attack on one’s own life with the intention of ending it.
Wellbutrin withdrawal Suicidal Tendency - Most likely will attempt to kill oneself.
Wellbutrin withdrawal Tremulousness Nervous - Very jumpy, shaky, and uneasy while feeling fearful and timid. The condition is characterized by thoughts of dreading the future, involuntary quivering, trembling, and feeling distressed and suddenly upset.
Wellbutrin withdrawal Yawning - involuntary opening of the mouth with deep inhalation of air.
Wellbutrin withdrawal Neck/Shoulder Pain - Hurtful sensations of the nerve endings caused by damage to the tissues in the neck and shoulder signaling danger of disease.
Wellbutrin withdrawal Alopecia - The loss of hair or baldness.
Wellbutrin withdrawal Dry Skin - The lack of normal moisture/oils in the surface layer of the body. The skin is the body’s largest organ.
Wellbutrin withdrawal Folliculitis - Inflammation of a follicle (small body sac) especially a hair follicle. A hair follicle contains the root of a hair.
Wellbutrin withdrawal Furunculosis - Skin boils that show up repeatedly.
Wellbutrin withdrawal Lipoma - A tumor of mostly fat cells that is not health endangering.
Wellbutrin withdrawal Pruritus - Extreme itching of often-undamaged skin.
Wellbutrin withdrawal Rash - A skin eruption or discoloration that may or may not be itching, tingling, burning, or painful. It may be caused by an allergy, an skin irritation, a skin disease.
Wellbutrin withdrawal Skin Nodule - A bulge, knob, swelling or outgrowth in the skin that is a mass of tissue or cells.
Wellbutrin withdrawal SPECIAL SENSES
Wellbutrin withdrawal Conjunctivitis - Infection of the membrane that covers the eyeball and lines the eyelid, caused by a virus, allergic reaction, or an irritating chemical. It is characterized by redness, a discharge of fluid and itching.
Wellbutrin withdrawal Dry Eyes - Not enough moisture in the eyes.
Wellbutrin withdrawal Earache - Pain in the ear.
Wellbutrin withdrawal Eye Infection - The invasion of the eye tissue by a bacteria, virus, fungus, etc, causing damage to the tissue, with toxicity. Infection spreading in the body progresses into disease.
Wellbutrin withdrawal Eye Irritation - An inflammation of the eye.
Wellbutrin withdrawal Metallic Taste - A range of taste impairment from distorted taste to a complete loss of taste.
Wellbutrin withdrawal Pupils Dilated - Abnormal expansion of the blace circular opening in the center of the eye.
Wellbutrin withdrawal Taste alteration - Abnormal flavor detection in food.
Wellbutrin withdrawal Tinnitus - A buzzing, ringing, or whistling sound in one or both ears occurring from the internal use of certain drugs.
Wellbutrin withdrawal Vision Abnormal - Normal images are seen differently by the viewer.
Wellbutrin withdrawal Vision Blurred - Eyesight is dim or indistinct and hazy in outline or appearance.
Wellbutrin withdrawal Visual Disturbance - Eyesight is interfered with or interrupted. Some disturbances are light sensitivity and the inability to easily distinguish colors.
Wellbutrin withdrawal Acute Renal Failure - The kidneys stop functioning properly to excrete wastes.
Wellbutrin withdrawal Angioedema - Intensely itching and swelling welts on the skin called hives caused by an allergic reaction to internal or external agents. The reaction is common to a food or a drug. Chronic cases can last for a long period of time.
Wellbutrin withdrawal Grand Mal Seizures (or Convulsions) - A recurring sudden violent and involuntary attack of muscle spasms with a loss of consciousness.
Wellbutrin withdrawal Neuroleptic Malignant Syndrome - A life threatening, rare reaction to an anti-psychotic drug marked by fever, muscular rigidity, changed mental status, and dysfunction of the autonomic nervous system.
Wellbutrin withdrawal Pancreatitis - Chemical irritation with redness, swelling, and pain in the pancreas where digestive enzymes and hormones are secreted.
Wellbutrin withdrawal QT Prolongation - A very fast heart rhythm disturbance that is too fast for the heart to beat effectively so the blood to the brain falls causing a sudden loss of consciousness and may cause sudden cardiac death.
Wellbutrin withdrawal Rhabdomyolysis - The breakdown of muscle fibers that releases the fibers into the circulatory system. Some of the fibers are poisonous to the kidney and frequently result in kidney damage.
Wellbutrin withdrawal Serotonin Syndrome - A disorder brought on by excessive levels of serotonin caused by drugs and can be fatal as death from this side effect can come very rapidly.
Wellbutrin withdrawal Thrombocytopenia - An abnormal decrease in the number of blood platelets in the circulatory system. A decrease in platelets would cause a decrease in the ability of the blood to clot when necessary.
Wellbutrin withdrawal Torsades de Pointes - Unusual rapid heart rhythm starting in the lower heart chambers. If the short bursts of rapid heart rhythm continue for a prolonged period it can degenerate into a more rapid rhythm and can be fatal.
Wellbutrin withdrawal. How to avoid Wellbutrin withdrawal side effects click here
Antidepressant
Bupropion hydrochloride, an antidepressant of the aminoketone class, is chemically unrelated to tricyclic, tetracyclic, or other known antidepressant agents. Its structure closely resembles that of diethylpropion; it is related to phenylethylamines. It is designated as (±)-1-(3-chlorophenyl)-2-[(1,1-dimethylethyl)amino]-1-propanone hydrochloride. The molecular weight is 276.2. The emperical formula is C13H18CINO*HCl. Bupropion powder is white, crystalline, and highly soluble in water. It has a bitter taste and produces the sensation of local anesthesia on the oral mucosa.
Bupropion is supplied for oral administration as 75 mg (yellow-gold) and 100 mg (red) film-coated tablets. Each tablet contains the labeled amount of bupropion hydrochloride and the inactive ingredients: 75 mg tablet - D&C Yellow No. 10 Lake, FD&C Yellow No. 6 Lake, hydroxypropyl cellulose, hydroxypropyl
methylcelluose,
microcrystalline cellulose, polyethylene glycol, talc, and titanium dioxide; 100 mg tablet - FD&C Red No. 40 Lake, FD&C Yellow No. 6 Lake, hydroxypropyl cellulose, hydroxypropyl methylcellulose, microcrystalline cellulose, polyethylene glycol, talc, and titanium dioxide.
Bupropion produces dose-related CNS stimulant effects in animals, as evidenced by increased locomotor activity, increased rates of responding in various schedule-controlled operant behavior tasks, and, at high doses, induction of mild stereotyped behavior.
Bupropion causes convulsions in rodents and dogs at doses approximately tenfold the dose recommended as the human antidepressant dose.
Absorption, Distribution, Pharmacokinetics, Metabolism, and Elimination:
Oral bioavailability and single-dose pharmacokinetics:
In humans, following oral administration of bupropion, peak plasma bupropion concentrations are usually achieved within 2 hours, followed by a biphasic decline. The average half-life of the second (post-distributional) phase is approximately 14 hours, with a range of 8 to 24 hours. Six hours after a single dose, plasma bupropion
concentrations are approximately 30% of peak concentrations. Plasma bupropion concentrations are dose-proportional following single doses of 100 to 250 mg; however, it is not known if the proportionality between dose and plasma level is maintained in chronic use.
The absolute bioavailability of bupropion tablets in humans has not been determined because an intravenous formulation for human use is not available.
However, it appears likely that only a small proportion of any orally administered dose reaches the systemic circulation intact. For example, the absolute bioavailability of bupropion in animals (rats and dogs) ranges from 5% to 20%.
Metabolism:
Following oral administration of 200 mg of 14C-bupropion, 87% and 10% of the radioactive dose were recovered in the urine and feces, respectively. However, the fraction of the oral dose of bupropion excreted unchanged was only 0.5%, a finding documenting the extensive metabolism of bupropion.
Several of the known metabolites of bupropion are pharmacologically active, but their potency and toxicity relative to bupropion have not been fully characterized. However, because of their longer elimination half-lives, the plasma concentrations of at least two of the known metabolites can be expected, especially in chronic use, to be very much higher than the plasma concentration of bupropion. This is of potential clinical importance because factors or conditions altering metabolic capacity (e.g., liver disease, congestive heart failure, age, concomitant medications, etc.) or elimination may be expected to influence the degree and extend of accumulation of these active metabolites.
Furthermore, bupropion has been shown to induce its own metabolism in three animal species (mice, rats, and dogs) following subchronic administration. If induction also occurs in humans, the relative contribution of bupropion and its metabolites to the clinical effects of bupropion may be changed in chronic use.
Plasma and urinary metabolites so far identified include biotransformation products formed via reduction of the carbonyl group and/or hydroxylation of the tert-butyl group of bupropion. Four basic metabolites have been identified.
They are the erythro- and threo-amino alcohols of bupropion, the erythro-amino diol of bupropion, and a morpholinol, metabolite (formed from hydroxylation of the tert-butyl group of bupropion).
The morpholinol metabolite appears in the systemic circulation almost as rapidly as the parent drug following a single oral dose. Its peak level is three times the peak level of the parent drug; it has a half life on the order of 24 hours; and its AUC 0 to 60 hours is about 15 times that of bupropion.
The threo-amino alcohol metabolite has a plasma concentration time profile similar to that of the morpholinol metabolite. The erythro-amino alcohol and the erythro-amino diol metabolites generally cannot be detected in the systemic circulation following a single oral dose of the parent drug. The morpholinol and the threo-amino alcohol metabolites have been found to be half as potent as bupropion in animal screening tests for antidepressant drugs.
During a chronic dosing study in 14 depressed patients with left ventricular dysfunction, it was found that there was substantial interpatient variability (two- to five-fold) in the trough steady-state concentrations of bupropion and the morpholinol and threo-amino alcohol metabolites. In addition, the steady-state plasma concentrations of these metabolites were 10 to 100 times the steady-state concentrations of the parent drug.
The effect of other disease states and altered organ function on the metabolism and/or elimination of bupropion has not been studied in detail. However, the elimination of the major metabolites of bupropion may be affected by reduced renal or hepatic function because they are moderately polar compounds and are likely to undergo conjugation in the liver prior to urinary excretion. The preliminary results of a comparative single-dose pharmacokinetic study in normal versus cirrhotic patients indicated that half-lives of the metabolites were prolonged by cirrhosis and that the metabolites accumulated to levels two to three times those in normals.
The effect of age on plasma concentrations of bupropion and its metabolites has not been characterized.
In vitro tests show that bupropion is 80% or more bound to human albumin at plasma concentrations up to 800 micromolar (200 mcg/mL).
The efficacy of bupropion has been established in three placebo-controlled trials, including two of approximately 3 weeks duration in depressed inpatients, and one of approximately 6 weeks duration in depressed outpatients. The depressive disorder of the patients studied corresponds most closely to the Major Depression category of the APA Diagnostic and Statistical Manual III.
Major Depression implies a prominent and relatively persistent depressed or dysphoric mood that usually interferes with daily functioning (nearly every day for at least 2 weeks); it should include at least four of the following eight symptoms: change in appetite, change in sleep, psychomotor agitation or retardation, loss of interest in usual activities or decrease in sexual drive, increased fatigability, feelings of guilt or worthlessness, slowed thinking or impaired concentration, and suicidal ideation or attempts.
Effectiveness of bupropion in long-term use, that is, for more than 6 weeks, has not been systematically evaluated in controlled trials. Therefore, the physician who elects to use bupropion for extended periods should periodically re-evaluate the long-term usefulness of the drug for the individual patient.
During the initial development, 25 among approximately 2400 patients treated with bupropion experienced seizures. At the time of seizure, seven patients were receiving daily doses of 450 mg or below for an incidence of 0.33% (3/1000) within the recommended dose range. Twelve patients experienced seizures at 600 mg per day (2.3% incidence); six additional patients has seizures at daily doses between 600 and 900 mg (2.8% incidence).
A separate, prospective study was conducted to determine the incidence of seizure during an 8-week treatment exposure in approximately 3200 additional patients who received daily doses of up to 450 mg. Patients were permitted to continue treatment beyond 8 weeks if clinically indicated. Eight seizures occurred during the initial 8-week treatment period and five seizures were reported in patients continuing treatment beyond 8 weeks, resulting in a total seizure incidence of 0.4%.
The risk of seizure appears to be strongly associated with dose and the presence of predisposing factors. A significant seizure, CNS tumor, concomitant medications that lower seizure threshold, etc.) was present in approximately one-half of the patients experiencing a seizure. Sudden and large increments in dose may contribute to increased risk. While many seizures occurred early in the course of treatment, some seizures did occur after several weeks at fixed dose.
Recommendations for reducing the risk of seizure:
Retrospective analysis of clinical experience gained during the development of bupropion suggests that the risk of seizure may be minimized if (1) the total daily dose of bupropion does not exceed 450 mg, (2) the daily dose is administered t.i.d., with each single dose not to exceed 150 mg to avoid high peak concentrations of bupropion
and/or its metabolites, and (3) the rate of incrementation of dose is very gradual. Extreme caution should be used when bupropion is (1) administered to patients with a history of seizure, cranial trauma, or other predisposition(s) toward seizure, or (2) prescribed with other agents (e.g., antipsychotics, other antidepressants, etc.) or
treatment regimens (e.g., abrupt discontinuation of a benzodiazepine) that lower seizure threshold.
Potential for Hepatotoxicity:
In rats receiving large doses of bupropion chronically, there was an increase in incidence of hepatic hyperplastic nodules and hepatocellular hypertrophy. In dogs receiving large doses of bupropion chronically, various histologic changes were seen in the liver, and laboratory tests suggesting mild hepatocellular injury were noted.
Although scattered abnormalities in liver function tests were detected in patients participating in clinical trials, there is no clinical evidence that bupropion acts as a hepatotoxin in humans.
General:
Agitation and Insomnia: A substantial proportion of patients treated with bupropion experience some degree of increased restlessness, agitation, anxiety, and insomnia, especially shortly after initiation of treatment. In clinical studies, these symptoms were sometimes of sufficient magnitude to require treatment with sedative/hypnotic drugs. In approximately 2% of patients, symptoms were sufficiently severe to require discontinuation of treatment with bupropion.
Psychosis, Confusion, and Other Neuropsychiatric Phenomena: Patients treated with bupropion have been reported to show a variety of neuropsychiatric signs and symptoms including delusions, hallucinations, psychotic episodes, confusion, and paranoia. Because of the uncontrolled nature of many studies, it is impossible to provide a precise estimate of the extent of risk imposed by treatment with bupropion. In several cases, neuropsychitric phenomena abated upon dose reduction and/or withdrawal of treatment.
Activation of Psychosis and/or Mania: Antidepressants can precipitate manic episodes in Bipolar Manic Depressive patients during the depressed phase of their illness and may activate latent psychosis in other susceptible patients. Bupropion is expected to pose similar risks.
Altered Appetite and Weight: A weight loss of greater than 5 pounds occurred in 28% of patients receiving bupropion. This incidence is approximately double that seen in comparable patients treated with tricyclics or placebo. Furthermore, while 34.5% of patients receiving tricyclic antidepressants gained weight, only 9.4% of patients treated with bupropion did. Consequently, if weight loss is a major presenting sign of a patient's depressive illness, the anorectic and/or weight reducing potential of bupropion should be considered.
Suicide: The possibility of a suicide attempt is inherent in depression and may persist until significant remission occurs. Accordingly, prescriptions for bupropion should be written for the smallest number of tablets consistent with good patient management.
Use in Patients with Systemic Illness:
There is no clinical experience establishing the safety of bupropion in patients with a recent history of myocardial infarction or unstable heart disease. Therefore, care should be exercised if it is used in these groups. Bupropion was well tolerated in patients who has previously developed orthostatic hypotension while receiving
tricyclic antidepressants.
Because bupropion HCl and its metabolites are almost completely excreted through the kidney and metabolites are likely to undergo conjugation in the liver prior to urinary excretion, treatment of patients with renal or hepatic, impairment should be initiated at reduced dosage as bupropion and its metabolites may accumulate in such patients beyond concentrations expected in patients without renal or hepatic impairment. The patient should be closely monitored for possible toxic effects of elevated blood and tissue levels of drug and metabolites.
Information for Patients:
Physicians are advised to discuss the following issues with patients:
Patients should be instructed to take bupropion in equally divided doses three or four times a day to minimize the risk of seizure.
Patients should be told that any CNS-active drug like bupropion may impair their ability to perform tasks requiring judgment or motor and cognitive skills. Consequently, until they are reasonably certain that bupropion does not adversely affect their performance, they should refrain from driving an automobile or operating complex, hazardous machinery.
Patients should be told that the use and cessation of use of alcohol may alter the seizure threshold, and, therefore, that the consumption of alcohol should be minimized, and, if possible, avoided completely.
Patients should be advised to inform their physician if they are taking or plan to take any prescription or over-the-counter drugs. Concern is warranted because bupropion and other drugs may affect each others metabolism.
Patients should be advised to notify their physician if they become pregnant or intend to become pregnant during therapy.
Drug Interactions:
No systematic data have been collected on the consequences of the concomitant administration of bupropion and other drugs.
However, animal data suggest that bupropion may be an inducer of drug metabolizing enzymes. This may be of potential clinical importance because the blood levels of co-administered drugs may be altered.
Alternatively, because bupropion is extensively metabolized, the co-administration of other drugs may affect its clinical activity. In particular, care should be exercised when administering drugs known to affect hepatic drug-metabolizing enzyme systems (e.g., carbamazepine, cimetidine, phenobarbital, phenytoin).
Studies in animals demonstrate that the acute toxicity of buproprion is enhanced by the MAO inhibitor phenelzine (see CONTRAINDICATIONS).
Limited clinical data suggest a higher incidence of adverse experiences in patients receiving concurrent administration of bupropion and L-dopa. Administration of bupropion to patients receiving L-dopa concurrently should be undertaken with caution, using small initial doses and small gradual dose increases.
Concurrent administration of bupropion and agents which lower seizure threshold should be undertaken only with extreme caution (see WARNINGS). Low initial dosing and small gradual dose increases should be employed.
Carcinogenesis, Mutagenesis, Impairment of Fertility:
Lifetime carcinogenicity studies were performed in rats and mice at doses up to 300 and 150 mg/kg/day, respectively. In the rat study there was an increase in nodular proliferative lesions of the liver at doses of 100 to 300 mg/kg/day; lower doses were not tested. The question of whether or not such lesions may be precursors of neoplasms
of the liver is currently unresolved. Similar liver lesions were not seen in the mouse study, and no increase in malignant tumors of the liver and other organs was seen in either study.
Bupropion produced a borderline positive response (2 to 3 times control mutation rate) in some strains in the Ames bacterial mutagenicity test, and a high oral dose (300, but not 100 or 200 mg/kg) produced a low incidence of chromosomal aberrations in rats. The relevance of these results in estimating the risk of human exposure to therapeutic doses is unknown.
A fertility study was performed in rats; no evidence of impairment of fertility was encountered at oral doses up to 300 mg/kg/day.
Pregnancy: Teratogenic Effects:
Pregnancy Category B: Reproduction studies have been performed in rabbits and rats at doses up to 15 to 45 times the human daily dose and have revealed no definitive evidence of impaired fertility or harm to the fetus due to bupropion. (In rabbits, a slightly increased incidence of fetal abnormalities was seen in two studies, but there
was no increase in any specific abnormality.) There are no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.
Labor and Delivery:
The effect of bupropion on labor and delivery in humans is unknown.
Nursing Mothers:
Because of the potential for serious adverse reactions in nursing infants from bupropion, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Pediatric Use:
The safety and effectiveness of bupropion in individuals under 18 years old have not been established.
Use in the Elderly:
Bupropion has not been systematically evaluated in older patients.
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