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Ergotamine, Dihydroergotamine

Concurrent Therapy with CYP 3A4

Peripheral Ischemia Following Coadministration With Strong CYP3A4 Iinhibitors

  • Serious and/or life threatening peripheral ischemia has been reported with coadministration of this drug with potent CYP 3A4 inhibitors (including protease inhibitors and macrolide antibiotics).
  • Because CYP3A4 inhibition elevates the serum levels of ergotamine and dihyergotamine, the risk of vasospasm leading to cerebral ischemia and/or ischemia of the extremities is increased.
  • Concurrent use of these drugs is contraindicated.

FDA and Industry Communications


Medication Guides

Patient Medication Guide - Trudhesa (dihydroergotamine)

Package Inserts



Additional Information

Updated October 2021