CUPRIMINE vs PRED-G

Independent side-by-side comparison.

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

Possible drug interaction. CUPRIMINE and PRED-G 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	PRED-G
Rating	74/100	72/100
Pharmacy pays	—	$0.97 /g
Type	RX	RX
Active ingredient	PENICILLAMINE	GENTAMICIN SULFATE AND PREDNISOLONE ACETATE
Manufacturer	Valeant Pharm Intl	Allergan
Dosage forms	Capsule	Drops, Topical
Drug class	Antirheumatic Agent	—
Boxed warning	Boxed warning	None
Half-life	—	2 to 4 hours
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	—

cuprimine pred-g

Rating

74/100

72/100

Pharmacy pays

—

$0.97 /g

Type

Active ingredient

PENICILLAMINE

GENTAMICIN SULFATE AND PREDNISOLONE ACETATE

Manufacturer

Valeant Pharm Intl

Allergan

Dosage forms

Capsule

Drops, Topical

Drug class

Antirheumatic Agent

—

Boxed warning

None

Half-life

—

2 to 4 hours

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

—

Frequently asked questions

Which is better-rated, Cuprimine or Pred-G?

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

What is the difference between Cuprimine and Pred-G?

Cuprimine contains Penicillamine, while Pred-G contains Gentamicin Sulfate and Prednisolone Acetate — 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.