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What are common side effects of Zyban®?


Most common: insomnia (35-40%) and dry mouth (10%). If insomnia is marked, taking the PM dose earlier (in the afternoon, at least 8 hours after the first dose) may provide some relief.

Less common: anxiety, changes in appetite, constipation, diarrhea, dizziness, drowsiness, headache, increased sweating, nausea, stomach pain, stuffy nose, weight changes.



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