Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Class III · Low risk Terminated Initiated Sep 19, 2013 (13 years ago)

Endometrin (Progesterone)

Class III — Low risk. Unlikely to cause harm, but violates FDA regulations.

Why it was recalled

Discoloration; due to prolonged heat exposure.

Cause type: Failed specification

A physical or chemical test other than potency, dissolution, impurity or stability failed - pH, viscosity, appearance, tablet integrity, fill volume. A product outside its own specification may not perform as designed, even if the active ingredient is present. All failed specification recalls.

What was recalled

ENDOMETRIN (progesterone) Vaginal Insert 100 mg USP, 21 inserts, Rx Only, Manufactured for: Ferring Pharmaceuticals Inc. Parsippany, NJ 07054 ---- NDC 55566-6500-3

Affected NDC 55566-6500-03

Compare with the code on your package — it is the most precise check available.

Drug: Progesterone

Product details

From the FDA NDC directory, for the product code this recall names. Compare with the label on your package.

ProductStrengthForm & routeLabelerType
Endometrin
Progesterone
NDC 55566-6500
100 mg/1 Insert
Vaginal
Ferring Pharmaceuticals Inc. Rx
Recalling firm
Ferring Pharmaceuticals Inc
NDC code
55566-6500-3
Origin
NJ, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-1426-2014 · FDA notice

Low risk, still worth a check. Class III means the product is unlikely to cause harm but breaks an FDA rule (often labeling). If your lot matches, your pharmacy will normally swap it; there is no need for alarm. This recall is now terminated, which means the firm has finished removing the affected product; anything on pharmacy shelves today should be unaffected.

Other Progesterone recalls

See all
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

Other recalls by Ferring Pharmaceuticals Inc

All 2013 recalls
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 II · Moderate risk

ZOMA-Jet 10 Demonstration Kit

Defective Delivery System: customer complaints concerning the injector pen breaking apart and disintegrating into pieces.

Terminated Packaging defect Ferring Pharmaceuticals Inc D-0318-2021
Class II · Moderate risk

ZOMA-Jet 5 Demonstration Kit

Defective Delivery System: customer complaints concerning the injector pen breaking apart and disintegrating into pieces.

Terminated Packaging defect Ferring Pharmaceuticals Inc D-0317-2021
Class III · Low risk

Menopur 75 IU

Failed pH specifications: Out of Specification pH results for 0.9% Sodium Chloride, USP

Terminated Failed specification Ferring Pharmaceuticals Inc NDC 55566-7501-2 D-0299-2021