Anatomy Other topics and Adverse effects 9470fd74 dihydroerigotamine differs from ergotamine in the following respect A It is more potent oxytocic B it has antimetic propey C it has high oral bioavailability D it is more potent alpha adrenergic blocker and less potent vasoconstrictor High-Yield Explanation hydrogenation of ergot alkaloids decrease their vasoconstrictor action and increase the Alpha blocking activity Ref-KDT 6/e p168