Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Class II · Moderate risk Terminated Initiated Mar 26, 2020 (7 years ago)

Losartan Potassium Tablets USP 50 mg

Class II — Moderate risk. May cause temporary or reversible harm; serious harm unlikely.

Why it was recalled

CGMP Deviations: FDA lab confirmed presence of an impurity, N-Methylnitrosobutyric acid (NMBA) in the finished product above the interim acceptable daily intake level

Cause type: Nitrosamine impurity

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. All nitrosamine impurity recalls.

What was recalled

Losartan Potassium Tablets USP 50 mg, a) 30 count (NDC 23155-645-03), b) 90 count (NDC 23155-645-09) and c) 1000 count (NDC 23155-645-10) bottles, Rx only, Manufactured by: Vivimed Life Sciences Private Limited, Tamil Nadu, India, Manufactured for: Heritage Pharmaceutical Inc., East Brunswick, NJ 08816 NDC 23155-645-09

Affected NDCs 23155-0645-03 23155-0645-09 23155-0645-10

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

Drug: Losartan Category: Blood Pressure Medication

Recalling firm
Avet Pharmaceuticals, Inc.
NDC code
23155-645-03
Origin
NJ, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-1103-2020 · FDA notice

Check, then ask. Class II means harm is possible but usually temporary or reversible. Find the lot number on your package; if it matches, ask your pharmacist about a replacement. Do not simply stop a prescribed medication on your own - the gap can be riskier than the recall. This recall is now terminated, which means the firm has finished removing the affected product; anything on pharmacy shelves today should be unaffected.

Other Losartan recalls

See all

Other recalls by Avet Pharmaceuticals, Inc.

All 2020 recalls
Class II · Moderate risk

Losartan Potassium Tablets USP 100 mg

CGMP Deviations: FDA lab confirmed presence of an impurity, N-Methylnitrosobutyric acid (NMBA) in the finished product above the interim acceptable daily intake level

Terminated Nitrosamine impurity Avet Pharmaceuticals, Inc. NDC 23155-646-03 D-1104-2020
Class I · High risk

Tetracycline HCL Capsules

Failed Dissolution Specifications: Out of specification result during long term testing in Tetracycline HCl capsules.

Terminated Dissolution failure Avet Pharmaceuticals, Inc. NDC 23155-017-01 D-1255-2020
Class I · High risk

Tetracycline HCL Capsules

Failed Dissolution Specifications: Out of specification result during long term testing in Tetracycline HCl capsules.

Terminated Dissolution failure Avet Pharmaceuticals, Inc. NDC 23155-018-01 D-1254-2020