麦角胺

{{Drugbox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 443732840
| IUPAC_name = (6aR,9R)-N-((2R,5S,10aS,10bS)-5-Benzyl-10b-hydroxy-2-methyl-3,6-dioxooctahydro-2H-oxazolo[3,2-a]pyrrolo[2,1-c]pyrazin-2-yl)-7-methyl-4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-carboxamide
| image = Ergotamine-skeletal.svg
| width = 250
| image2 = Ergotamine ball-and-stick.png

| tradename = Cafergot, Ergomar
| Drugs.com =
| pregnancy_US = X
| pregnancy_category =
| legal_AU = Schedule 4
| legal_CA = Schedule VI
| legal_UK = POM
| legal_US = Rx Only; DEA controlled precursor
| routes_of_administration = Oral

| bioavailability = Intravenous: 100%,
Intramuscular: 47%,
Oral: <1% (Enhanced by co-administration of caffeine

副作用
麦角胺的副作用包括恶心和呕吐。在较高的剂量下，它可引起动脉血压升高、血管收缩（包括冠状动脉血管痉挛）和心动过缓或过速。严重的血管收缩可能引起间歇性跛行的症状。
参考文献
参见

• 麦角中毒
• 麦角新碱
• （双氢麦角胺）
• D-麦角酸二乙胺