Answer
Common side effects listed for the Flamingo Pharma (UK) Ltd product, oral diphenhydramine hydrochloride 25 mg tablets, are sedation, drowsiness, disturbance in attention, unsteadiness, dizziness, dry mouth and fatigue.
Sources for this answer
- Diphenhydramine Hydrochloride 25 mg Tablets 20's (P) (PL 43461/0065)Flamingo Pharma (UK) Ltd · emc · SmPC §4.8 Undesirable effects · Version 3Document updated
Sources checked