Answer
Some antihistamines have anticholinergic effects and may increase confusion, constipation, blurred vision, dry mouth or urinary retention. Check with a pharmacist or prescriber.
Sources for this answer
- Orphenadrine Hydrochloride 50mg/5ml Oral Solution — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.