ORTHO-NOVUM 1/50 21 vs ORTHO-NOVUM 10-21

Independent side-by-side comparison.

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

Attribute	ORTHO-NOVUM 1/50 21	ORTHO-NOVUM 10-21
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	MESTRANOL AND NORETHINDRONE	MESTRANOL AND NORETHINDRONE
Manufacturer	Ortho Mcneil Pharm	Ortho Mcneil Pharm
Dosage forms	Tablet	Tablet
Drug class	—	—
Boxed warning	None	None
Half-life	about 8 hours	about 8 hours

ortho-novum 1/50 21 ortho-novum 10-21

Rating

New

Pharmacy pays

—

Type

Active ingredient

MESTRANOL AND NORETHINDRONE

Manufacturer

Ortho Mcneil Pharm

Dosage forms

Tablet

Drug class

—

Boxed warning

None

Half-life

about 8 hours

Frequently asked questions

What is the difference between Ortho-Novum 1/50 21 and Ortho-Novum 10-21?

Both Ortho-Novum 1/50 21 and Ortho-Novum 10-21 share the active ingredient Mestranol and Norethindrone.

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.