Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Impurities & degradation products

An impurity or degradation product above its limit - other than nitrosamines. Unexpected substances in a batch can make it unsafe or less effective, even when the active ingredient is present.

704 FDA drug recalls with this cause, newest first.

Every drug has a specification for how much of each impurity or breakdown product it may contain. These recalls are lots that exceeded one of those limits - often a related compound formed during manufacturing or storage, or an out-of-specification result found during routine stability testing. Nitrosamine impurities are common enough to get their own category; everything else lands here.

Class III · Low risk

Atorvastatin Calcium Tablets

Failed Impurities/Degradation Specifications:presence of ATV cyclo IP and FP, Dihydroxy epoxy and Dieto epoxy impurities

Terminated Impurity / degradation Dr. Reddy's Laboratories, Inc. NDC 55111-123-90 D-0291-2021
Class II · Moderate risk

Cephalexin for Oral Suspension

CGMP Deviations: Individual Unidentified impurities results of the product was found at higher side of the specification limit.

Terminated Impurity / degradation Ascend Laboratories LLC NDC 67877-545-68 D-0264-2021
Class II · Moderate risk

Cephalexin for Oral Suspension

CGMP Deviations: Individual Unidentified impurities results of the product was found at higher side of the specification limit.

Terminated Impurity / degradation Ascend Laboratories LLC NDC 67877-545-88 D-0263-2021
Class III · Low risk

Phytonadione Tablets 5mg

Failed Impurities/Degradation Specifications:Out of specification during the 24 month stability testing of Impurity D.

Terminated Impurity / degradation Bausch Health Companies, Inc. NDC 68682-170-30 D-0244-2021
Class III · Low risk

Mephyton (phytonadione)

Failed Impurities/Degradation Specifications:Out of specification during the 24 month stability testing of Impurity D.

Terminated Impurity / degradation Bausch Health Companies, Inc. NDC 0187-1704-05 D-0243-2021
Class III · Low risk

Benzhydrocodone and Acetaminophen Tablets

Failed Impurities/Degradation Specifications; out of specification results obtained for N-Oxide impurity during the 12-month long term stability testing for Batch# 15892A

Terminated Impurity / degradation KVK-Tech, Inc. NDC 10702-344-01 D-0224-2021
Class II · Moderate risk

Hydroxyzine Hydrochloride Oral Solution

Failed Impurities/Degradation Specification: OOS for the following - unknown degradant/impurity, 4-chorobenzophenone, and for total impurities.

Terminated Impurity / degradation Morton Grove Pharmaceuticals, Inc. NDC 60432-150-04 D-0174-2021
Class II · Moderate risk

Cephalexin for Oral Suspension

Failed Impurity/Degradation Specifications: Unidentified impurities not complying with specifications were observed in various lots of Cephalexin FOS USP 125 mg/5 mL.

Terminated Impurity / degradation Ascend Laboratories LLC NDC 67877-544-88 D-0185-2021
Class II · Moderate risk

Athlete's Foot Cream

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. D-0159-2021
Class II · Moderate risk

TopCare Health

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. NDC 36800-495-69 D-0158-2021
Class II · Moderate risk

Best Choice

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. D-0157-2021
Class II · Moderate risk

RiteAid Pharmacy RIngworm Cream

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. D-0156-2021
Class II · Moderate risk

Kroger Jock Itch Cream

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. NDC 30142-510-01 D-0155-2021
Class II · Moderate risk

Kroger Athlete's Foot Cream

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. NDC 30142-305-01 D-0154-2021
Class II · Moderate risk

Kaiser Permanente Clotrimazole Cream USP

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. NDC 0179-8014-30 D-0153-2021
Class II · Moderate risk

Equate Athlete's Foot

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. NDC 49035-812-01 D-0151-2021
Class II · Moderate risk

CVS Health Athlete's Foot Cream

Failed Impurities/Degradation Specifications: An unknown degradation impurity was detected slightly above the specification limit in Clotrimazole Cream USP 1%.

Terminated Impurity / degradation Taro Pharmaceuticals U.S.A., Inc. NDC 59779-305-03 D-0150-2021