Answer
There is no demonstrated direct interaction, but severe diarrhoea can reduce contraceptive reliability; follow the contraceptive's missed-pill or diarrhoea advice and use additional protection when indicated.
Sources for this answer
- Xenical 120 mg hard capsules — 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.