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ACTHAR vs CORTROSYN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Possible drug interaction. ACTHAR and CORTROSYN 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.

actharcortrosyn

Rating

70/100
70/100

Pharmacy pays

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—

Type

RX
RX

Active ingredient

CORTICOTROPIN
COSYNTROPIN

Manufacturer

Sanofi Aventis US
Amphastar Pharms Inc

Dosage forms

Injectable
Injectable

Drug class

Adrenocorticotropic Hormone
Adrenocorticotropic Hormone

Boxed warning

None
None

Treats

Collagen Diseases, Erythema Multiforme, Multiple Sclerosis
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Frequently asked questions

Which is better-rated, Acthar or Cortrosyn?

Acthar and Cortrosyn are tied at 3.5 out of 5 by our independent rating.

What is the difference between Acthar and Cortrosyn?

Acthar contains Corticotropin, while Cortrosyn contains Cosyntropin — 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.