CUPRIMINE vs DUREZOL

Independent side-by-side comparison.

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

Possible drug interaction. CUPRIMINE and DUREZOL 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	DUREZOL
Rating	74/100	68/100
Pharmacy pays	—	$8.92 /mL
Type	RX	RX
Active ingredient	PENICILLAMINE	DIFLUPREDNATE
Manufacturer	Valeant Pharm Intl	Sandoz
Dosage forms	Capsule	Emulsion
Drug class	Antirheumatic Agent	—
Boxed warning	Boxed warning	None
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	—

cuprimine durezol

Rating

74/100

68/100

Pharmacy pays

—

$8.92 /mL

Type

Active ingredient

PENICILLAMINE

DIFLUPREDNATE

Manufacturer

Valeant Pharm Intl

Sandoz

Dosage forms

Capsule

Emulsion

Drug class

Antirheumatic Agent

—

Boxed warning

None

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

—

Frequently asked questions

Which is better-rated, Cuprimine or Durezol?

By our independent rating, Cuprimine scores higher — 3.7 vs 3.4 out of 5 for Durezol. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Cuprimine and Durezol?

Cuprimine contains Penicillamine, while Durezol contains Difluprednate — 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.