Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Class II · Moderate risk Terminated Initiated Jun 1, 2021 (5 years ago)

Metformin Hydrochloride Extended-Release Tablets

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

Why it was recalled

CGMP Deviations: Detection of N-Nitrosodimethylamine (NDMA) levels in excess of the Acceptable Daily Intake Limit.

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

Metformin Hydrochloride Extended-Release Tablets, USP 750 mg, 100 Tablets, Rx only, Manufactured by: Cadila Healthcare Ltd. Ahmedabad, India. Distributed by: Viona Pharmaceuticals Inc. Cranford, NJ 07016 NDC 72578-036-01

Affected NDC 72578-0036-01

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

Drug: Metformin Category: Diabetes Medication

Product details

From the FDA NDC directory, for the product code this recall names. Compare with the label on your package.

ProductStrengthForm & routeLabelerType
Metformin Hydrochloride
NDC 72578-0036
750 mg/1 Tablet, Extended Release
Oral
Viona Pharmaceuticals Inc Rx
Recalling firm
Viona Pharmaceuticals INC
NDC code
72578-036-01
Origin
NJ, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-0640-2021 · 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 Metformin recalls

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Class II · Moderate risk

Synjardy XR Tablets

CGMP Deviations: An incorrect detergent was used and the required swab sampling was not performed on a production hopper that had previously been used for a different product.

Ongoing cGMP deviation Boehringer Ingelheim Pharmaceuticals, Inc. D-0657-2026

Other recalls by Viona Pharmaceuticals INC

All 2021 recalls