LEVONORGESTREL AND ETHINYL ESTRADIOL vs LYBREL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Attribute	LEVONORGESTREL AND ETHINYL ESTRADIOL	LYBREL
Rating	70/100	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	ETHINYL ESTRADIOL AND LEVONORGESTREL	ETHINYL ESTRADIOL AND LEVONORGESTREL
Manufacturer	Watson Labs	Wyeth Pharms Inc
Dosage forms	Kit	Tablet
Drug class	—	—
Boxed warning	None	None
Half-life	about 36 hours (36 ± 13 hours at steady state)	about 36 hours (36 ± 13 hours at steady state)

levonorgestrel and ethinyl estradiol lybrel

Rating

70/100

New

Pharmacy pays

—

Type

Active ingredient

ETHINYL ESTRADIOL AND LEVONORGESTREL

Manufacturer

Watson Labs

Wyeth Pharms Inc

Dosage forms

Kit

Tablet

Drug class

—

Boxed warning

None

Half-life

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

Frequently asked questions

What is the difference between Levonorgestrel and Ethinyl Estradiol and Lybrel?

Both Levonorgestrel and Ethinyl Estradiol and Lybrel 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.