Answer
It is generally avoided, particularly early in pregnancy, unless specialist assessment finds it clearly necessary. Planned or confirmed pregnancy requires prompt review.
Sources for this answer
- Cystagon 50 mg hard capsules — Current selected SmPCemc · Summary of Product Characteristics
- PROCYSBI 25 mg & 75 mg gastro-resistant hard capsules — 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.