Answer
Store Tecfidera (dimethyl fumarate) gastro-resistant hard capsules at no more than 30°C and keep the blisters in the outer carton to protect them from light.
Sources for this answer
- Tecfidera 120mg and 240mg gastro-resistant hard capsulesBiogen Idec Ltd · emc · SmPC §6.4 Special precautions for storage · Version 25Document updated
Sources checked