Question: how long do the side effects of bupropion hydrochloride last?
Answer: Side effects with bupropion are generally mild and often resolve over the first 1-2 weeks of treatment as you continue to take the medication. The most commonly reported side effects of bupropion are headache, weight loss, dry mouth, trouble sleeping, nausea, dizziness, constipation, fast heartbeat, and sore throat.