CUPRIMINE vs PMB 400

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 8, 2026·How we rate

Possible drug interaction. CUPRIMINE and PMB 400 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	PMB 400
Rating	74/100	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	PENICILLAMINE	ESTROGENS, CONJUGATED AND MEPROBAMATE
Manufacturer	Valeant Pharm Intl	Wyeth Ayerst
Dosage forms	Capsule	Tablet
Drug class	Antirheumatic Agent	—
Boxed warning	Boxed warning	None
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	—

cuprimine pmb 400

Rating

74/100

New

Pharmacy pays

—

Type

Active ingredient

PENICILLAMINE

ESTROGENS, CONJUGATED AND MEPROBAMATE

Manufacturer

Valeant Pharm Intl

Wyeth Ayerst

Dosage forms

Capsule

Tablet

Drug class

Antirheumatic Agent

—

Boxed warning

None

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

—

Frequently asked questions

What is the difference between Cuprimine and Pmb 400?

Cuprimine contains Penicillamine, while Pmb 400 contains Estrogens, Conjugated and Meprobamate — 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.