CUPRIMINE vs MODURETIC 5-50

Independent side-by-side comparison.

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

Possible drug interaction. CUPRIMINE and MODURETIC 5-50 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	MODURETIC 5-50
Rating	74/100	72/100
Pharmacy pays	—	~$6.00 /30
Type	RX	RX
Active ingredient	PENICILLAMINE	AMILORIDE HYDROCHLORIDE AND HYDROCHLOROTHIAZIDE
Manufacturer	Valeant Pharm Intl	Merck
Dosage forms	Capsule	Tablet
Drug class	Antirheumatic Agent	—
Boxed warning	Boxed warning	None
Half-life	—	about 6 to 15 hours (the label reports a range, not a single number)
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	—

cuprimine moduretic 5-50

Rating

74/100

72/100

Pharmacy pays

—

~$6.00 /30

Type

Active ingredient

PENICILLAMINE

AMILORIDE HYDROCHLORIDE AND HYDROCHLOROTHIAZIDE

Manufacturer

Valeant Pharm Intl

Merck

Dosage forms

Capsule

Tablet

Drug class

Antirheumatic Agent

—

Boxed warning

None

Half-life

—

about 6 to 15 hours (the label reports a range, not a single number)

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

—

Frequently asked questions

Which is better-rated, Cuprimine or Moduretic 5-50?

By our independent rating, Cuprimine scores higher — 3.7 vs 3.6 out of 5 for Moduretic 5-50. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Cuprimine and Moduretic 5-50?

Cuprimine contains Penicillamine, while Moduretic 5-50 contains Amiloride Hydrochloride and Hydrochlorothiazide — 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.