Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Nitrosamine impurities (NDMA/NDEA)

Trace nitrosamine impurities such as NDMA, NDEA or NMBA found above the acceptable daily limit. Nitrosamines are probable human carcinogens that can form during manufacturing or storage. This is the cause behind the large valsartan, losartan and ranitidine (Zantac) recalls.

568 FDA drug recalls with this cause, newest first.

Nitrosamine compounds such as NDMA, NDEA or NMBA are probable human carcinogens that can form during manufacturing or storage. Recalls here trace back to a nitrosamine found above the accepted limit - whether the report names the compound or simply calls it a 'carcinogenic impurity'. It is a newer category, driven by improved testing methods that can now detect impurities that were previously missed, and it is the chemistry behind the large valsartan, losartan and ranitidine (Zantac) recalls.

Class II · Moderate risk

Cinacalcet Tablets 30 mg

CGMP Deviations: the presence of a nitrosamine impurity, N-nitroso-cinacalcet, above the acceptable daily intake (ADI) limits.

Terminated Nitrosamine impurity Accord Healthcare, INC. D-0030-2025
Class II · Moderate risk

Cinacalcet Tablets

CGMP Deviations: Presence of N-nitroso Cinacalcet impurity above FDA recommended interim limit

Ongoing Nitrosamine impurity Dr. Reddy's Laboratories, Inc. NDC 43598-369-30 D-0028-2025
Class II · Moderate risk

Cinacalcet Tablets

CGMP Deviations: Presence of N-nitroso Cinacalcet impurity above FDA recommended interim limit

Ongoing Nitrosamine impurity Dr. Reddy's Laboratories, Inc. NDC 43598-368-30 D-0027-2025
Class II · Moderate risk

Cinacalcet Tablets

CGMP Deviations: Presence of N-nitroso Cinacalcet impurity above FDA recommended interim limit

Ongoing Nitrosamine impurity Dr. Reddy's Laboratories, Inc. NDC 43598-367-30 D-0026-2025
Class II · Moderate risk

Duloxetine Delayed-Release Capsules

CGMP Deviations: Presence of Nitrosamine Drug Substance Related Impurity (NDSRI), N-nitroso-duloxetine, above the proposed interim limit.

Terminated Nitrosamine impurity Golden State Medical Supply Inc. NDC 60429-165-30 D-0568-2024
Class II · Moderate risk

Rizatriptan Benzoate Tablets USP

CGMP Deviations: N-Nitroso Desmethyl Rizatriptan Impurity results that are above the FDA acceptable limit.

Ongoing Nitrosamine impurity Glenmark Pharmaceuticals Inc., USA NDC 68462-466-99 D-0533-2024
Class II · Moderate risk

Rizatriptan Benzoate Tablets USP

CGMP Deviations: N-Nitroso Desmethyl Rizatriptan Impurity results that are above the FDA acceptable limit.

Ongoing Nitrosamine impurity Glenmark Pharmaceuticals Inc., USA NDC 68462-465-99 D-0532-2024
Class II · Moderate risk

Dabigatran Etexilate Capsules

CGMP Deviations: Detection of N-nitroso-dabigatran (NDAB) impurity levels above the Acceptable Daily Intake Limit.

Ongoing Nitrosamine impurity Ascend Laboratories, LLC NDC 67877-474-60 D-0533-2023
Class II · Moderate risk

Quinapril Tablets USP

CGMP Deviations: Detection of N-Nitroso-quinapril impurity above the acceptable daily intake limit.

Terminated Nitrosamine impurity Lupin Pharmaceuticals Inc. NDC 68180-558-09 D-0089-2023
Class II · Moderate risk

Quinapril Tablets USP

CGMP Deviations: Detection of N-Nitroso-quinapril impurity above the acceptable daily intake limit.

Terminated Nitrosamine impurity Lupin Pharmaceuticals Inc. NDC 68180-554-09 D-0088-2023
Class II · Moderate risk

Rifampin Capsules

Failed impurities/degradation specifications: Finished product exceeds the 5 ppm interim limit for 1-Methyl-4-Nitrosopoperazine (MNP).

Terminated Nitrosamine impurity Golden State Medical Supply Inc. NDC 51407-322-30 D-0012-2023
Class II · Moderate risk

Rifampin Capsules

Failed impurities/degradation specifications: Finished product exceeds the 5 ppm interim limit for 1-Methyl-4-Nitrosopoperazine (MNP).

Terminated Nitrosamine impurity Golden State Medical Supply Inc. NDC 51407-323-30 D-0011-2023
Class II · Moderate risk

Rifampin Capsules

Failed impurities/degradation specifications: Finished product exceeds the 5 ppm interim limit for 1-Methyl-4-Nitrosopoperazine (MNP).

Ongoing Nitrosamine impurity Akorn, Inc. NDC 61748-018-30 D-1548-2022