BREKIYA (AUTOINJECTOR) vs OXYGEN, USP

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 20, 2026·How we rate

Possible drug interaction. BREKIYA (AUTOINJECTOR) 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	BREKIYA (AUTOINJECTOR)	OXYGEN, USP
Rating	70/100	New
Pharmacy pays	$34.84 /mL	—
Type	RX	RX
Active ingredient	DIHYDROERGOTAMINE MESYLATE	OXYGEN
Manufacturer	Amneal	Cristal Asu LLC
Dosage forms	Injectable	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

brekiya (autoinjector)oxygen, usp

Rating

70/100

New

Pharmacy pays

$34.84 /mL

—

Type

Active ingredient

DIHYDROERGOTAMINE MESYLATE

OXYGEN

Manufacturer

Amneal

Cristal Asu LLC

Dosage forms

Injectable

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 Brekiya (Autoinjector) and Oxygen, Usp?

Brekiya (Autoinjector) 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.