Answer
Blocking muscarinic acetylcholine receptors reduces saliva production and slows bowel movement, producing typical anticholinergic effects.
Sources for this answer
- Orphenadrine Hydrochloride 50mg/5ml Oral Solution — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.