Answer
Clinical studies did not show a meaningful effect on ethinylestradiol or norethisterone concentrations. Effective contraception is nevertheless advised because of uncertain fetal risk.
Sources for this answer
- Zonisamide 50mg hard capsules — Current selected SmPCemc · Summary of Product Characteristics
- Desizon 20 mg/ml oral suspension — 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.