CUPRIMINE vs MYFEMBREE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 11, 2026·How we rate

Possible drug interaction. CUPRIMINE and MYFEMBREE 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	MYFEMBREE
Rating	74/100	New
Pharmacy pays	—	$6.64 /g
Type	RX	RX
Active ingredient	PENICILLAMINE	ESTRADIOL AND NORETHINDRONE ACETATE AND RELUGOLIX
Manufacturer	Valeant Pharm Intl	Sumitomo Pharma Am
Dosage forms	Capsule	Tablet
Drug class	Antirheumatic Agent	—
Boxed warning	Boxed warning	Boxed warning
Half-life	—	about 8 hours
Treats	Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration	—

cuprimine myfembree

Rating

74/100

New

Pharmacy pays

—

$6.64 /g

Type

Active ingredient

PENICILLAMINE

ESTRADIOL AND NORETHINDRONE ACETATE AND RELUGOLIX

Manufacturer

Valeant Pharm Intl

Sumitomo Pharma Am

Dosage forms

Capsule

Tablet

Drug class

Antirheumatic Agent

—

Boxed warning

Half-life

—

about 8 hours

Treats

Rheumatoid Arthritis, Cystinuria, Hepatolenticular Degeneration

—

Frequently asked questions

What is the difference between Cuprimine and Myfembree?

Cuprimine contains Penicillamine, while Myfembree contains Estradiol and Norethindrone Acetate and Relugolix — 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.