PMB 200 vs PMB 400

Independent side-by-side comparison.

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

Attribute	PMB 200	PMB 400
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	ESTROGENS, CONJUGATED AND MEPROBAMATE	ESTROGENS, CONJUGATED AND MEPROBAMATE
Manufacturer	Wyeth Ayerst	Wyeth Ayerst
Dosage forms	Tablet	Tablet
Drug class	—	—
Boxed warning	None	None

pmb 200 pmb 400

Rating

New

Pharmacy pays

—

Type

Active ingredient

ESTROGENS, CONJUGATED AND MEPROBAMATE

Manufacturer

Wyeth Ayerst

Dosage forms

Tablet

Drug class

—

Boxed warning

None

Frequently asked questions

What is the difference between Pmb 200 and Pmb 400?

Both Pmb 200 and Pmb 400 share the active ingredient Estrogens, Conjugated and Meprobamate.

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.