Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
RxRecalls Get alerts
Class II · Moderate risk Terminated Initiated Apr 18, 2017 (9 years ago)

Riomet (metformin hydrochloride)

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

Why it was recalled

Microbial Contamination of Non-Sterile Products

Cause type: Microbial contamination

Bacteria, mold, yeast or other microorganisms detected in the product. Contamination can occur from water systems, equipment or handling, and can cause infection. All microbial contamination recalls.

What was recalled

Riomet (metformin hydrochloride) Oral Solution Cherry Flavored 500 mg /5 mL, 4 fl. oz. (NDC 10631-206-01) and 16 fl. oz. (NDC 10631-206-02) HDPE bottles, Rx only, Manufactured for: Ranbaxy Laboratories Inc. Jacksonville, FL 32257 USA, Distributed by: Sun Pharmaceutical Industries, Cranbury, NJ 08512

Affected NDCs 10631-0206-01 10631-0206-02

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
Riomet
Metformin Hydrochloride
NDC 10631-0206
500 mg/5mL Solution
Oral
Sun Pharmaceutical Industries, Inc. Rx
Recalling firm
Sun Pharmaceutical Industries, Inc.
NDC code
10631-206-01
Origin
NJ, United States
Initiated by
Voluntary: Firm initiated
FDA recall number
D-0109-2018 · 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

See all
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 Sun Pharmaceutical Industries, Inc.

All 2017 recalls
Class II · Moderate risk

Carbamazepine Tablets

CGMP Deviations; black spots found on tablets from burnt excipient during manufacturing

Ongoing cGMP deviation Sun Pharmaceutical Industries INC NDC 51672-4005-3 D-0770-2026
Class II · Moderate risk

Perampanel CIII Tablets

Labeling: Label Mix-up: 10mg Perampanel CIII tablet was found in a Perampanel CIII bottle labeled Perampanel 6 mg tablets.

Ongoing Labeling / mix-up Sun Pharmaceutical Industries INC NDC 51672-4206-6 D-0628-2026