Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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National Drug Code

Is NDC 55566-6500-03 recalled?

Endometrin · 1 CARTON in 1 CARTON (55566-6500-3) / 21 BLISTER PACK in 1 CARTON (55566-6500-2) / 1 INSERT in 1 BLISTER PACK (55566-6500-1)

Yes — this exact package was recalled

2 FDA recalls name the code 55566-6500-03 directly. A recall still applies to particular lot numbers — compare the lot on your package with the FDA notice below, and talk to your pharmacist before stopping a prescribed medication.

Active ingredient
Progesterone
Strength
PROGESTERONE 100 mg/1
Form
Insert · Vaginal
Labeler
Ferring Pharmaceuticals Inc.
Type
Human Prescription Drug
Product code
55566-6500

Recalls naming this package

Class II · Moderate risk

Endometrin

cGMP deviations: potential for Microbial Contamination of Non-Sterile Products

Terminated Microbial contamination Ferring Pharmaceuticals Inc NDC 55566-6500-03 D-0879-2023
Class III · Low risk

Endometrin

Discoloration; due to prolonged heat exposure.

Terminated Failed specification Ferring Pharmaceuticals Inc NDC 55566-6500-3 D-1426-2014

Where to find this code. The NDC is printed on the pharmacy label and on the manufacturer's carton, usually as three groups of digits after “NDC”. The last group is the package size — two bottles of the same medicine can differ only in that group, and a recall may cover one but not the other.

Other recalled products from this labeler