Answer
Keep sachets refrigerated where possible. They may be stored below 25°C for up to six months after removal from refrigeration, but never beyond the printed expiry date.
Sources for this answer
- Veltassa (Patiromer) 8.4 g powder for 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.