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

Valsartan Tablets

CGMP Deviations: FDA lab confirmed presence an impurity, N-nitrosodiethylamine (NDEA) contained in the API used to manufacture the product.

Ongoing Nitrosamine impurity Mylan Pharmaceuticals Inc. NDC 0378-5813-77 D-0313-2019
Class II · Moderate risk

Amlodipine and Valsartan Tablets

CGMP Deviations: FDA lab confirmed presence an impurity, N-nitrosodiethylamine (NDEA) contained in the API used to manufacture the product.

Ongoing Nitrosamine impurity Mylan Pharmaceuticals Inc. NDC 0378-1722-93 D-0312-2019
Class II · Moderate risk

Amlodipine and Valsartan Tablets

CGMP Deviations: FDA lab confirmed presence an impurity, N-nitrosodiethylamine (NDEA) contained in the API used to manufacture the product.

Ongoing Nitrosamine impurity Mylan Pharmaceuticals Inc. NDC 0378-1721-93 D-0311-2019
Class II · Moderate risk

IRBESARTAN Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodiethylamine (NDEA) in product.

Terminated Nitrosamine impurity Golden State Medical Supply Inc. NDC 60429-642-30 D-0265-2019
Class II · Moderate risk

IRBESARTAN Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodiethylamine (NDEA) in product.

Terminated Nitrosamine impurity Golden State Medical Supply Inc. NDC 60429-641-30 D-0264-2019
Class II · Moderate risk

IRBESARTAN Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodiethylamine (NDEA) in product.

Terminated Nitrosamine impurity Golden State Medical Supply Inc. NDC 60429-640-90 D-0263-2019
Class II · Moderate risk

Westminster Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed traces of NDEA impurity in specific lots of Irbesartan.

Terminated Nitrosamine impurity Westminster Pharmaceuticals Llc NDC 69367-121-01 D-0302-2019
Class II · Moderate risk

Westminster Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed traces of NDEA impurity in specific lots of Irbesartan.

Terminated Nitrosamine impurity Westminster Pharmaceuticals Llc NDC 69367-120-01 D-0301-2019
Class II · Moderate risk

Westminster Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed traces of NDEA impurity in specific lots of Irbesartan.

Terminated Nitrosamine impurity Westminster Pharmaceuticals Llc NDC 69367-119-01 D-0300-2019
Class II · Moderate risk

GSMS Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodimethylamine (NDEA) in product.

Terminated Nitrosamine impurity Sciegen Pharmaceuticals Inc NDC 60429-642-30 D-0272-2019
Class II · Moderate risk

GSMS Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodimethylamine (NDEA) in product.

Terminated Nitrosamine impurity Sciegen Pharmaceuticals Inc NDC 60429-641-30 D-0271-2019
Class II · Moderate risk

GSMS Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodimethylamine (NDEA) in product.

Terminated Nitrosamine impurity Sciegen Pharmaceuticals Inc NDC 60429-640-90 D-0270-2019
Class II · Moderate risk

Westminister Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodimethylamine (NDEA) in product.

Terminated Nitrosamine impurity Sciegen Pharmaceuticals Inc NDC 69367-121-01 D-0269-2019
Class II · Moderate risk

Westminister Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodimethylamine (NDEA) in product.

Terminated Nitrosamine impurity Sciegen Pharmaceuticals Inc NDC 69367-120-01 D-0268-2019
Class II · Moderate risk

Westminister Irbesartan Tablets

CGMP Deviations: FDA laboratory testing confirmed presence of an impurity, N-nitrosodimethylamine (NDEA) in product.

Terminated Nitrosamine impurity Sciegen Pharmaceuticals Inc NDC 69367-119-01 D-0267-2019
Class II · Moderate risk

Amlodipine

CGMP Deviations: Carcinogen impurity detected in API used to manufacture drug product.

Ongoing Nitrosamine impurity Torrent Pharma Inc. D-1145-2018
Class II · Moderate risk

Amlodipine

CGMP Deviations: Carcinogen impurity detected in API used to manufacture drug product.

Ongoing Nitrosamine impurity Torrent Pharma Inc. D-1144-2018
Class II · Moderate risk

Amlodipine

CGMP Deviations: Carcinogen impurity detected in API used to manufacture drug product.

Ongoing Nitrosamine impurity Torrent Pharma Inc. D-1143-2018
Class II · Moderate risk

Amlodipine

CGMP Deviations: Carcinogen impurity detected in API used to manufacture drug product.

Ongoing Nitrosamine impurity Torrent Pharma Inc. D-1142-2018
Class II · Moderate risk

Amlodipine

CGMP Deviations: Carcinogen impurity detected in API used to manufacture drug product.

Ongoing Nitrosamine impurity Torrent Pharma Inc. D-1141-2018