Sansert is a brand name for methysergide, a member of the ergoline group. Methysergide is one of the most effective medications for prevention, but not treatment, of migraine headaches. However, it has a known side-effect, retroperitoneal fibrosis [1], that is severe, although uncommon. Novartis appears to have withdrawn it from the U.S. market after taking over Sandoz.
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