D.H.E. 45 Dosage
Generic name: Dihydroergotamine Mesylate 1mg in 1mL
Dosage form: injection, solution
Drug class: Antimigraine agents
Medically reviewed by Drugs.com. Last updated on Mar 24, 2025.
D.H.E. 45 (dihydroergotamine mesylate) Injection, USP should be administered in a dose of 1 mL intravenously, intramuscularly or subcutaneously. The dose can be repeated, as needed, at 1-hour intervals to a total dose of 3 mL for intramuscular or subcutaneous delivery or 2 mL for intravenous delivery in a 24-hour period. The total weekly dosage should not exceed 6 mL. D.H.E. 45 (dihydroergotamine mesylate) Injection, USP should not be used for chronic daily administration.
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