Answer
Avoid alcohol because it can worsen drowsiness and increase the risk of serious opioid and liver-related adverse effects.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Boots Paracetamol and Codeine Extra Capsules — 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.