ESTROSTEP 21 vs ESTROSTEP FE

Independent side-by-side comparison.

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

Attribute	ESTROSTEP 21	ESTROSTEP FE
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	ETHINYL ESTRADIOL AND NORETHINDRONE ACETATE	ETHINYL ESTRADIOL AND NORETHINDRONE ACETATE
Manufacturer	Apil	Apil
Dosage forms	Tablet	Tablet
Drug class	—	—
Boxed warning	None	None
Half-life	about 8 hours	about 8 hours

estrostep 21 estrostep fe

Rating

New

Pharmacy pays

—

Type

Active ingredient

ETHINYL ESTRADIOL AND NORETHINDRONE ACETATE

Manufacturer

Apil

Dosage forms

Tablet

Drug class

—

Boxed warning

None

Half-life

about 8 hours

Frequently asked questions

What is the difference between Estrostep 21 and Estrostep Fe?

Both Estrostep 21 and Estrostep Fe share the active ingredient Ethinyl Estradiol and Norethindrone Acetate.

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.