Answer
Yes, shingles (herpes zoster) has been reported with Tecfidera (dimethyl fumarate), mostly as non-serious cases, although serious cases have occurred, and it may occur at any time during treatment.
Sources for this answer
- Tecfidera 120mg and 240mg gastro-resistant hard capsulesBiogen Idec Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 25Document updated
Sources checked