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Active ingredient

Estrogens, Conjugated (Usp)

20 finished FDA listings contain Estrogens, Conjugated (Usp) as their only active ingredient; 9 combination products also contain it.

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FDA NDC Directory

Ingredient names as written by FDA
ESTROGENS, CONJUGATED
Dosage forms
Cream, Injection, Powder, Lyophilized, For Solution, Liquid, Tablet, Film Coated
Routes
Intramuscular, Intravenous, Oral, Vaginal
Manufacturers / labelers
5
Strengths listed
.3 mg/1 · .45 mg/1 · .625 mg/1 · .625 mg/g · .9 mg/1 · 1.25 mg/1 · 25 mg/5ml · 9 [hp_x]/29.5ml
Brand names in FDA listings
Conjugated Estrogens, Estrogen 1517, Premarin, Premarin Vaginal

RxNorm (National Library of Medicine)

Ingredient concept RxCUI 4099

Drugs@FDA applications

Linked only where the FDA listing’s application number matches Drugs@FDA exactly. A listing in the NDC Directory does not by itself mean FDA approval.

ApplicationSponsorOriginal approvalListings
NDA 004782WYETH PHARMS1942-05-0812
NDA 010402WYETH PHARMS1956-12-181
NDA 020216WYETH PHARMS1978-10-161
ANDA 214025NOVAST LABS2025-10-153
ANDA 214023NOVAST LABS2025-10-152

Official labeling on DailyMed

Sources: FDA NDC Directory (2026-09-29), RxNorm, Drugs@FDA, DailyMed. Each source’s facts are shown separately as published.