Answer
Yes. Sleepiness is very common, and alcohol or other sedating medicines can make it worse.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Metoclopramide hydrochloride 5mg/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.