DIHYDROERGOTAMINE MESYLATE vs OXYGEN, USP

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Possible drug interaction. DIHYDROERGOTAMINE MESYLATE and OXYGEN, USP are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	DIHYDROERGOTAMINE MESYLATE	OXYGEN, USP
Rating	New	New
Pharmacy pays	$34.84 /mL	—
Type	RX	RX
Active ingredient	DIHYDROERGOTAMINE MESYLATE	OXYGEN
Manufacturer	Somerset Theraps LLC	Cristal Asu LLC
Dosage forms	Injectable, Solution, Spray/Inhaler, Spray/Inhaler, metered	Gas
Drug class	Ergotamine Derivative	—
Boxed warning	Boxed warning	None
Half-life	about 9 to 13 hours, depending on the form	—
Treats	Cluster Headache, Postpartum Hemorrhage, Orthostatic Hypotension	Carbon Monoxide Poisoning, Cluster Headache, Decompression Sickness

dihydroergotamine mesylate oxygen, usp

Rating

New

Pharmacy pays

$34.84 /mL

—

Type

Active ingredient

DIHYDROERGOTAMINE MESYLATE

OXYGEN

Manufacturer

Somerset Theraps LLC

Cristal Asu LLC

Dosage forms

Injectable, Solution, Spray/Inhaler, Spray/Inhaler, metered

Gas

Drug class

Ergotamine Derivative

—

Boxed warning

None

Half-life

about 9 to 13 hours, depending on the form

—

Treats

Cluster Headache, Postpartum Hemorrhage, Orthostatic Hypotension

Carbon Monoxide Poisoning, Cluster Headache, Decompression Sickness

Frequently asked questions

What is the difference between Dihydroergotamine Mesylate and Oxygen, Usp?

Dihydroergotamine Mesylate contains Dihydroergotamine Mesylate, while Oxygen, Usp contains Oxygen — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.