What Is Dihydroergotamine? Uses, Dosage, and What You Need to Know in 2026

Dihydroergotamine (DHE) is an ergot alkaloid medication used to treat acute migraine attacks and cluster headache episodes in adults.

If your doctor has mentioned Dihydroergotamine — or you've seen it listed as DHE, Migranal, Trudhesa, Atzumi, or Brekiya — you probably have questions. What is it? How does it work? What forms does it come in? And how much will it cost? This guide covers everything you need to know about Dihydroergotamine in 2026.

What Is Dihydroergotamine?

Dihydroergotamine mesylate is a prescription medication in the ergot alkaloid class — a group of drugs originally derived from a fungus that grows on grain. Ergot alkaloids have been used to treat headaches for decades, and DHE has been a cornerstone of acute migraine treatment since the 1940s.

DHE is available from multiple manufacturers under several brand names:

• D.H.E. 45 — the original brand-name injectable (largely discontinued)
• Migranal — nasal spray by Bausch Health (generic available)
• Trudhesa — nasal spray by Impel Pharmaceuticals using Precision Olfactory Delivery (POD) technology
• Atzumi — nasal powder by Satsuma Pharmaceuticals (FDA approved 2025)
• Brekiya — subcutaneous injection by Amneal Pharmaceuticals (FDA approved 2025)
• Generic injectable — manufactured by Hikma and others

Dihydroergotamine is not a controlled substance and is not classified on any DEA schedule.

What Is Dihydroergotamine Used For?

Dihydroergotamine is FDA-approved for two conditions:

1. Acute treatment of migraine attacks with or without aura in adults
2. Acute treatment of cluster headache episodes

"Acute" means it's taken when a migraine or cluster headache attack starts — it's not a preventive medication you take every day. DHE is designed to stop an attack that's already happening.

Doctors also use DHE off-label for:

• Status migrainosus — severe migraine attacks lasting more than 72 hours
• Medication overuse headache detoxification — breaking the cycle of rebound headaches
• Refractory migraine in the ER — IV DHE protocols for migraine attacks that haven't responded to other treatments

How Is Dihydroergotamine Taken?

DHE comes in several formulations, each with its own dosing instructions:

Injectable (IV, IM, or Subcutaneous)

The injectable form (1 mg/mL) is the most potent. IV administration is typically done in a clinic or ER setting. The usual dose is 1 mg per injection, which can be repeated at 1-hour intervals up to 3 mg total per 24 hours (IV) or 2 mg total (IM/SC). IM and subcutaneous injections can be self-administered at home after proper training.

Migranal Nasal Spray

One spray (0.5 mg) in each nostril, for a total dose of 2 mg per migraine event. Maximum of 3 mg in 24 hours. Prime the sprayer before use, remain upright, and breathe gently through your nose after spraying.

Trudhesa Nasal Spray

Uses Precision Olfactory Delivery (POD) technology — a special device that delivers the medication to the upper nasal space for better absorption. One spray per nostril (1.45 mg total). Maximum of 2 doses per 24 hours with at least 1 hour between doses.

Atzumi (Nasal Powder) and Brekiya (SC Injection)

Both were FDA-approved in 2025 and expand the options for self-administered DHE at home. Atzumi delivers DHE as a nasal powder, while Brekiya is a subcutaneous injection designed for patient self-administration.

Important: Do not use Dihydroergotamine within 24 hours of taking a triptan (like Sumatriptan) or another ergot alkaloid. The combination can cause dangerous blood vessel constriction.

Who Should Not Take Dihydroergotamine?

Dihydroergotamine is not safe for everyone. It is contraindicated (meaning you should not take it) if you have any of the following. For a deeper look at risks, see our article on Dihydroergotamine side effects.

• Ischemic heart disease (angina, history of heart attack)
• Coronary artery vasospasm, including Prinzmetal angina
• Uncontrolled high blood pressure
• Peripheral arterial or vascular disease
• Hemiplegic or basilar migraine
• Severely impaired liver or kidney function
• Pregnancy or breastfeeding
• Current use of strong CYP3A4 inhibitors (certain antifungals, antibiotics, HIV medications)
• Known allergy to ergot alkaloids

How Much Does Dihydroergotamine Cost?

Dihydroergotamine can be expensive, especially without insurance. Here's a general cost breakdown in 2026:

• Generic injectable: $335–$733 for 5–10 mL ampules (cash price). With discount coupons, as low as ~$286.
• Generic nasal spray (Migranal): ~$101–$975 depending on quantity.
• Trudhesa (brand): ~$800–$1,200+ per prescription.
• Atzumi and Brekiya: Pricing varies as these are newer to market.

Many insurance plans cover generic DHE with prior authorization, and some require you to try triptans first (step therapy). Brand-name formulations typically need extra approval. For ways to reduce your out-of-pocket costs, see our guide to saving money on Dihydroergotamine.

Final Thoughts

Dihydroergotamine has been treating migraines since the 1940s, and it remains one of the most effective options for patients who need something stronger than triptans — or who can't tolerate them. With new formulations like Trudhesa, Atzumi, and Brekiya, there are more ways to take DHE at home than ever before. Want to understand the science behind how it works? Read our article on how Dihydroergotamine works.

Ready to fill your prescription? Use Medfinder to find a pharmacy with Dihydroergotamine in stock near you.