Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
RxRecalls Get alerts

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 II · Moderate risk

Rifampin for Injection

Failed Impurities/Degradation Specifications: High out of specification results obtained for related compound during stability testing.

Terminated Impurity / degradation Mylan Pharmaceuticals Inc NDC 67457-445-60 D-0774-2022
Class II · Moderate risk

Esomeprazole Magnesium Delayed-Release Capsules

Failed Impurities/Degradation Specifications: OOS result was obtained for Any Other Individual Impurity at the 12M room temperature time point.

Terminated Impurity / degradation Mylan Institutional, Inc. (d.b.a. UDL Laboratories) NDC 42292-010-16 D-0861-2022
Class II · Moderate risk

Esomeprazole Magnesium Delayed-Release Capsules

Failed Impurities/Degradation Specifications: OOS result was obtained for Any Other Individual Impurity at the 12M room temperature time point.

Terminated Impurity / degradation Mylan Institutional, Inc. (d.b.a. UDL Laboratories) NDC 42292-009-16 D-0860-2022
Class II · Moderate risk

Travoprost Ophthalmic Solution

Subpotent Drug and Failed Impurities/Degradation Specifications: low out-of-specification results obtained for assay and high out-of-specification results for related substance impurities/degradation during routine stability testing.

Terminated Impurity / degradation Mylan Pharmaceuticals Inc NDC 0378-9651-32 D-0748-2022