Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Class II · Moderate risk Ongoing Initiated Jun 6, 2019 (7 years ago)

LOSARTAN POTASSIUM 50 mg TABLET BULK 90 count bottles and 1000 count bottles

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

Why it was recalled

CGMP Deviations: impurity for N-Nitroso-N-methyl-4-aminobutyric acid (NMBA) detected in the active pharmaceutical ingredient (API) used to manufacture finished products.

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 50 mg TABLET BULK 90 count bottles and 1000 count bottles, NDC 00591-3746-00

Affected NDC 0591-3746-00

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

Drug: Losartan Category: Blood Pressure Medication

Recalling firm
Teva Pharmaceuticals USA
NDC code
00591-3746-00
Origin
NJ, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-1455-2019 · 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.

Other Losartan recalls

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Other recalls by Teva Pharmaceuticals USA

All 2019 recalls