Press Release: European Medicines Agency recommends restricting the use of methysergide-containing medicines

The European Medicines Agency in February 2014 recommended restricting the use of methysergide due to concerns that it could cause fibrosis, a condition in which fibrous (scar) tissue accumulates in the body’s organs potentially damaging them. Methysergide medicines are now only to be used for preventing severe intractable migraines and cluster headaches (a type of severe, recurring headache on one side of the head, usually around the eye) when standard medicines have failed.