About Dihydroergotoxine mesylate
About Co-dergocrine mesylate
About Dihydroergotoxine mesylate
About Hydergine
About hypotensive drug
About cerebral ameliorator
About vasoactive drug
About alpha adrenergic antagonist
About sulfonic acid
About lactam
About oxygen heterocyclic compound
About ergot alkaloid
About polynuclear aromatic compound