RT Book, Section A1 Benowitz, Neal L. A1 O'Connell, Charles W. A2 Olson, Kent R. A2 Anderson, Ilene B. A2 Benowitz, Neal L. A2 Blanc, Paul D. A2 Clark, Richard F. A2 Kearney, Thomas E. A2 Kim-Katz, Susan Y. A2 Wu, Alan H. B. SR Print(0) ID 1179991342 T1 ERGOT DERIVATIVES T2 Poisoning & Drug Overdose, 7e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9780071839792 LK accessmedicine.mhmedical.com/content.aspx?aid=1179991342 RD 2024/04/25 AB Ergot derivatives are used to treat migraine headache and enhance uterine contraction postpartum. Ergots are produced by the fungus Claviceps purpurea, which may grow on rye and other grains. Natural or synthetic ergot drugs include ergotamine (Cafergot, Ergomar, Gynergen, and Ergostat), dihydroergotamine (DHE45), methysergide (Sansert), methylergonovine (Methergine), and ergonovine (Ergotrate). Some ergoloid derivatives (dihydroergocornine, dihydroergocristine, and dihydroergocryptine) have been used in combination (Hydergine and Deapril-ST) for the treatment of dementia. Bromocriptine (Parlodel) and pergolide (Permax) are ergot derivatives with dopamine agonist activity that are used to treat Parkinson disease. Bromocriptine is also used to treat hyperprolactinemic states.