RT Journal A1 Peloso PM, Baillie C T1 BIological warfare JF JAMA JO JAMA YR 1999 FD November 17 VO 282 IS 19 SP 1817 OP 1817 DO 10-1001/pubs.JAMA-ISSN-0098-7484-282-19-jbk1117 UL http://dx.doi.org/10-1001/pubs.JAMA-ISSN-0098-7484-282-19-jbk1117 AB To the Editor: Bupropion hydrochloride, an atypical antidepressant that has both dopaminergic and adrenergic actions, is effective for smoking cessation, being more effective than placebo1 and more effective than the nicotine patch alone.2 Bupropion enhances the response rate of the nicotine patch. Recent guidelines on smoking cessation3 recommend bupropion for smokers who fail treatment with or who do not wish to use nicotine replacement therapy. It is the second-line therapy in part due to adverse effects.4 Principally, these include agitation, dizziness, insomnia, tremor, reduced seizure threshold, dry mouth, nausea, and abdominal pain. A study by Settle4 found that these adverse effects are dose related. Compared with placebo, which had a 4% discontinuation rate, buproprion had a discontinuation rate of 9% at the 300 mg/d dosage and 11% at 450 mg/d dosage. We describe herein a serum sickness–like reaction in a man taking bupropion.