CONRAY 400 vs CUPRIMINE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 5, 2026·How we rate

Possible drug interaction. CONRAY 400 and CUPRIMINE 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	CONRAY 400	CUPRIMINE
Rating	72/100	74/100
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	IOTHALAMATE SODIUM	PENICILLAMINE
Manufacturer	Mallinckrodt	Valeant Pharm Intl
Dosage forms	Injectable	Capsule
Drug class	—	Antirheumatic Agent
Boxed warning	None	Boxed warning
Treats	—	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

conray 400 cuprimine

Rating

72/100

74/100

Pharmacy pays

—

Type

Active ingredient

IOTHALAMATE SODIUM

PENICILLAMINE

Manufacturer

Mallinckrodt

Valeant Pharm Intl

Dosage forms

Injectable

Capsule

Drug class

—

Antirheumatic Agent

Boxed warning

None

Boxed warning

Treats

—

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

Frequently asked questions

Which is better-rated, Conray 400 or Cuprimine?

By our independent rating, Cuprimine scores higher — 3.7 vs 3.6 out of 5 for Conray 400. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Conray 400 and Cuprimine?

Conray 400 contains Iothalamate Sodium, while Cuprimine contains Penicillamine — 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.