There are a number of possible side effects with Wellbutrin SR® (bupropion SR). Some common Wellbutrin SR side effects include constipation, anxiety, weight loss, and infections. A few uncommon side effects of Wellbutrin SR (occurring in less than 1 percent of people who take the medicine) include canker sores, leg cramps, impotence, and sensitivity to the sun. Among the more serious side effects with this medicine that you should report to your healthcare provider are chest palpitations, difficulty sleeping, and hostility or aggressiveness.
(Click Wellbutrin SR Side Effects for the full eMedTV article. This article takes a detailed look at the common, rare, and serious side effects of Wellbutrin SR -- and also provides some statistics on how often Wellbutrin SR side effects occur.)