A 40-year-old member asked:
So what are side effects of promethazine hydrochloride pills?
1 doctor answer • 2 doctors weighed in

Dr. Geoffrey Tysonanswered
Pain Management 40 years experience
Multiple effects: Promethazine is a potent antihistamine that can cause dizziness, drowsiness, dry mouth, nausea, vomiting, weakness and occasionally more serious central nervous system side effects. It is usually well tolerated in most people.
5.7k viewsReviewed >2 years ago
Last updated Jun 30, 2014
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