CUPRIMINE vs PENICILLAMINE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 9, 2026·How we rate

Attribute	CUPRIMINE	PENICILLAMINE
Rating	74/100	72/100
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	PENICILLAMINE	PENICILLAMINE
Manufacturer	Valeant Pharm Intl	Granules
Dosage forms	Capsule	Capsule, Tablet
Drug class	Antirheumatic Agent	Antirheumatic Agent
Boxed warning	Boxed warning	Boxed warning
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

cuprimine penicillamine

Rating

74/100

72/100

Pharmacy pays

—

Type

Active ingredient

PENICILLAMINE

Manufacturer

Valeant Pharm Intl

Granules

Dosage forms

Capsule

Capsule, Tablet

Drug class

Antirheumatic Agent

Boxed warning

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

Frequently asked questions

Which is better-rated, Cuprimine or Penicillamine?

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

What is the difference between Cuprimine and Penicillamine?

Both Cuprimine and Penicillamine share the active ingredient Penicillamine.

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.