CUPRIMINE vs LAC-HYDRIN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 6, 2026·How we rate

Possible drug interaction. CUPRIMINE and LAC-HYDRIN 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	LAC-HYDRIN
Rating	74/100	New
Pharmacy pays	—	$0.07 /g
Type	RX	RX
Active ingredient	PENICILLAMINE	AMMONIUM LACTATE
Manufacturer	Valeant Pharm Intl	Sun Pharm Inds Inc
Dosage forms	Capsule	Topical
Drug class	Antirheumatic Agent	—
Boxed warning	Boxed warning	None
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	Ichthyosis Vulgaris

cuprimine lac-hydrin

Rating

74/100

New

Pharmacy pays

—

$0.07 /g

Type

Active ingredient

PENICILLAMINE

AMMONIUM LACTATE

Manufacturer

Valeant Pharm Intl

Sun Pharm Inds Inc

Dosage forms

Capsule

Topical

Drug class

Antirheumatic Agent

—

Boxed warning

None

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

Ichthyosis Vulgaris

Frequently asked questions

What is the difference between Cuprimine and Lac-Hydrin?

Cuprimine contains Penicillamine, while Lac-Hydrin contains Ammonium Lactate — 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.