CUPRIMINE vs STILPHOSTROL

Independent side-by-side comparison.

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

Possible drug interaction. CUPRIMINE and STILPHOSTROL 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	STILPHOSTROL
Rating	74/100	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	PENICILLAMINE	DIETHYLSTILBESTROL DIPHOSPHATE
Manufacturer	Valeant Pharm Intl	Bayer Pharms
Dosage forms	Capsule	Tablet, Injectable
Drug class	Antirheumatic Agent	—
Boxed warning	Boxed warning	None
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	—

cuprimine stilphostrol

Rating

74/100

New

Pharmacy pays

—

Type

Active ingredient

PENICILLAMINE

DIETHYLSTILBESTROL DIPHOSPHATE

Manufacturer

Valeant Pharm Intl

Bayer Pharms

Dosage forms

Capsule

Tablet, Injectable

Drug class

Antirheumatic Agent

—

Boxed warning

None

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

—

Frequently asked questions

What is the difference between Cuprimine and Stilphostrol?

Cuprimine contains Penicillamine, while Stilphostrol contains Diethylstilbestrol Diphosphate — 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.