Thornton Law Firm LLP is actively investigating metformin claims against drug makers on behalf of patients injured by these potentially defective drugs. If you have taken metformin and been diagnosed with a cancer of the digestive tract, call the metformin lawyers at Thornton Law Firm 888-341-1405 for a free consultation to assess your potential claim.

What is Metformin?

Metformin is a drug used to control blood sugar in adults and children over the age of 10 with Type 2 diabetes. It is the most popular oral diabetes medication in the world, and can be taken alone or in conjunction with other drugs. Metformin is also used in the treatment of polycystic ovary syndrome (PCOS), gestational diabetes, and to manage antipsychotic-induced weight gain.

The U.S. Food and Drug Administration (FDA) approved metformin in 1994 under the brand name Glucophage. The generic drug metformin is produced by numerous manufacturers, and it is still sold under several brand names, including:

  • Fortamet
  • Glucophage
  • Glucophage XR
  • Glumetza
  • Riomet

Numerous manufacturers also make drugs that combine metformin with some other diabetes drug. Some examples are Byetta, Januvia, Janumet, and Victoza.

Metformin and NDMA

In 2020, the online pharmacy Valisure reported to the FDA that generic forms of metformin – particularly extended-release metformin – contained high levels of NDMA in 16 of 38 batches it had tested. Amneal Pharmaceutical’s metformin contained the highest levels, in some cases as much as 16 times the FDA’s recommended daily limit. Other companies’ metformin contained more than 10 times the FDA limit.

What is NDMA? NDMA stands for N-Nitrosodimethylamine, a chemical that has been linked to cancer. The U.S. Centers for Disease Control’s Agency for Toxic Substances and Disease Registry (ATSDR), states that it is “reasonable to expect that exposure to NDMA by eating, drinking, or breathing could cause cancer in humans.” In addition. the U.S. Environmental Protection Agency (EPA) has designated NDMA a probable human carcinogen.

Metformin FDA Recalls

In May of 2020, the FDA announced that 5 companies announced voluntary recalls for certain lots of extended-release metformin. The manufacturers included in the recall were

  • Apotex
  • Amneal Pharmaceuticals LLC
  • Marksans Pharma Limited
  • Lupin Pharmaceuticals Inc.
  • Teva Pharmaceuticals USA, Inc.

Since then, several companies have also recalled lots of extended release metformin. To see the most recent recall updates, check the FDA’s website.

The FDA recommends that patients continue to take their extended-release metformin until a doctor or health care professional has prescribed an alternate form of treatment. It could be dangerous for a person with Type 2 diabetes to discontinue their medication without speaking with a medical professional first, so please contact your doctor if you are taking an extended-release form of metformin. Testing has not shown the presence of NDMA in immediate release (IR) metformin products. IR metformin is the most commonly prescribed type of metformin.

What Can You Do?

If you or a loved one has been diagnosed with cancer after taking extended-release metformin, you may have a claim for damages. Contact the metformin lawyers at Thornton Law Firm by calling 1-888-341-1405 or telling us your story here. Thornton Law Firm’s experienced drug and medical device attorneys can help you assess your potential claims. The consultation is free and will be held in complete confidence.