Answer
Yes. It can make systemic hormonal contraception less reliable by increasing hormone metabolism. Ask for a contraceptive method unaffected by enzyme induction.
Sources for this answer
- Rifadin For Infusion 600mg — 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.