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Drug recall · FDA · Published October 23, 2020

Nostrum Laboratories Inc recalls Metformin Hydrochloride Extended-Release Tablets, USP 500 mg, 100 count bottles, Rx Only. Manufactured by: Nostrum

Nostrum Laboratories recalls 500mg Metformin ER tablets due to detected N-Nitrosodimethylamine (NDMA) impurity above safe levels. Rx-only bottles with NDC 29033-055-01 may be affected.

🇺🇸 FDA recall #D-0068-2021DrugNostrum ›
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Contact the company & request your remedy

Recalling firmNostrum Laboratories Inc1800 N Topping Ave, N/A · Kansas City, MO 64120-1228
No email on file for this recall — reach the company by phone or its official page instead.No email on file — write to the address above instead.
✎ GovInfoNow plain-language explainer

What happened, in plain English

Nostrum Laboratories is recalling 500mg Metformin Hydrochloride Extended-Release Tablets (Rx-only) because they contain N-Nitrosodimethylamine (NDMA) impurities above safe levels. This impurity could pose health risks with long-term use, though the recall does not specify immediate danger. Read more at govinfonow.com/recall/36702-nostrum-metformin-500mg-tablets-recall-ndma-impurity-risk.

Source Summary by GovInfoNow · govinfonow.com/recall/36702-nostrum-metformin-500mg-tablets-recall-ndma-impurity-risk · Updated October 4, 2026 · FDA enforcement record: FDA #D-0068-2021

Cite this page

“Nostrum Metformin 500mg Tablets Recall: NDMA Impurity Risk.” GovInfoNow, updated October 4, 2026. https://govinfonow.com/recall/36702-nostrum-metformin-500mg-tablets-recall-ndma-impurity-risk. Based on FDA recall #D-0068-2021 (https://api.fda.gov/drug/enforcement.json?search=recall_number:%22D-0068-2021%22&limit=1).

Why it’s dangerous

The tablets contain N-Nitrosodimethylamine (NDMA), a chemical that can form in some medications. While NDMA is present in trace amounts naturally, this recall indicates levels above the acceptable intake limit for long-term use. The impurity may pose health risks with prolonged use, but the recall does not specify immediate harm.

Who’s affected

Prescription patients who have received the specific 500mg Metformin ER tablets with NDC 29033-055-01. People with diabetes who take this medication are most at risk.

How to tell if you have this one

Check for the product name 'Metformin Hydrochloride Extended-Release Tablets, USP 500 mg, 100 count bottles' with NDC code 29033-055-01. These were manufactured by Nostrum Laboratories, Inc. in Kansas City, MO and expired by May 2022.

  • Brand
    Nostrum
  • Category
    Drug
FDA recall event · 2 products

All 2 products in this recall

FDA lists each product line separately under one recall event. Check your product description, lot or code numbers against each row. Every row shares the hazard and remedy on this page.

  • Classification
    Class II
  • Status
    Ongoing
  • Distribution
    Nationwide
Recall numberProduct, codes & lotsQuantity
D-0067-2021Metformin Hydrochloride Extended-Release Tablets, USP 750 mg, 100 count bottles, Rx Only. Manufactured by: Nostrum Laboratories, Inc. Kansas City, MO 64120. NDC 29033-056-01; MET200101, MET200301 EXP 05/202212,967 bottles
D-0068-2021Metformin Hydrochloride Extended-Release Tablets, USP 500 mg, 100 count bottles, Rx Only. Manufactured by: Nostrum Laboratories, Inc. Kansas City, MO 64120. NDC 29033-055-01; MET100201, MET100401 EXP 05/202220,872 bottles
Based on the official FDA remedy

What to do — step by step

  1. Check Product Details

    Look for the NDC code 29033-055-01 on the bottle label to confirm if it's affected.

✎ GovInfoNow

Questions people ask

Is this product safe to use?

The recall states the product contains NDMA impurities above safe levels, but does not specify immediate danger. Patients should consult their doctor before using.

How can I tell if I have the recalled product?

Check for the NDC code 29033-055-01 on the bottle label. These were manufactured by Nostrum Laboratories, Inc. in Kansas City, MO and expired by May 2022.

What should I do if I have the recalled product?

The recall does not specify a remedy, so patients should contact their doctor for guidance.

Take action

Contact Nostrum

We’ve drafted a message you can send Nostrum to request your refund or repair — edit it as you like.

Subject: Recall D-0068-2021 — Nostrum Nostrum

Hello,

I own a Nostrum that is covered by recall D-0068-2021 from Nostrum.

I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?

Thank you.

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Where this comes from

The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.

  • Official source: FDA Recall #D-0068-2021 (October 23, 2020) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for D-0068-2021 to see it in context.
  • Plain-language summary written by qwen3:4b on October 4, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
  • GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.
GovInfoNow is an independent guide. We are not FDA or any government agency. Always confirm details with the official recall.Data: CPSC · FDA · NHTSA · USDA