Answer
Alcohol can worsen drowsiness and may increase other adverse effects, including heart-rhythm problems, so it is best avoided.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Prochlorperazine maleate 3 mg Buccal Tablet-P/Almus Migraine Relief 3mg Buccal Tablets — Current selected SmPCemc · Summary of Product Characteristics
- Buccastem M — Current selected SmPC