Answer
Its overall effect on driving is usually negligible, but dizziness can occur. Do not drive or use machinery until you know how it affects you.
Sources for this answer
- Tadalafil Milpharm 2.5 mg film-coated tablets — 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.