LYBREL vs QUARTETTE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Attribute	LYBREL	QUARTETTE
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	ETHINYL ESTRADIOL AND LEVONORGESTREL	ETHINYL ESTRADIOL AND LEVONORGESTREL
Manufacturer	Wyeth Pharms Inc	Teva Branded Pharm
Dosage forms	Tablet	Kit
Drug class	—	—
Boxed warning	None	Boxed warning
Half-life	about 36 hours (36 ± 13 hours at steady state)	about 36 hours (36 ± 13 hours at steady state)

lybrel quartette

Rating

New

Pharmacy pays

—

Type

Active ingredient

ETHINYL ESTRADIOL AND LEVONORGESTREL

Manufacturer

Wyeth Pharms Inc

Teva Branded Pharm

Dosage forms

Tablet

Kit

Drug class

—

Boxed warning

None

Boxed warning

Half-life

about 36 hours (36 ± 13 hours at steady state)

Frequently asked questions

What is the difference between Lybrel and Quartette?

Both Lybrel and Quartette share the active ingredient Ethinyl Estradiol and Levonorgestrel.

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.