CUPRIMINE vs WINREVAIR

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 10, 2026·How we rate

Possible drug interaction. CUPRIMINE and WINREVAIR 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	CUPRIMINE	WINREVAIR
Rating	74/100	72/100
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	PENICILLAMINE	SOTATERCEPT-CSRK
Manufacturer	Valeant Pharm Intl	Merck Sharp Dohme
Dosage forms	Capsule	Kit
Drug class	Antirheumatic Agent	—
Boxed warning	Boxed warning	None
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	Pulmonary Arterial Hypertension

cuprimine winrevair

Rating

74/100

72/100

Pharmacy pays

—

Type

Active ingredient

PENICILLAMINE

SOTATERCEPT-CSRK

Manufacturer

Valeant Pharm Intl

Merck Sharp Dohme

Dosage forms

Capsule

Kit

Drug class

Antirheumatic Agent

—

Boxed warning

None

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

Pulmonary Arterial Hypertension

Frequently asked questions

Which is better-rated, Cuprimine or Winrevair?

By our independent rating, Cuprimine scores higher — 3.7 vs 3.6 out of 5 for Winrevair. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Cuprimine and Winrevair?

Cuprimine contains Penicillamine, while Winrevair contains Sotatercept-Csrk — 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.