Metformin 1000 mg recall

Find out about the metformin 1000 mg recall, including the reasons behind the recall and what steps you should take if you are currently taking this medication. Stay informed and ensure your health and safety.

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Metformin 1000 mg Recall: Important Information for Patients and Healthcare Providers

Metformin is a widely prescribed medication for the treatment of type 2 diabetes. It works by decreasing the amount of sugar produced by the liver and improving the body’s response to insulin. However, recently there has been a recall of metformin 1000 mg tablets due to concerns over potential contamination with a probable carcinogen called N-Nitrosodimethylamine (NDMA).

NDMA is classified as a probable human carcinogen, meaning it has the potential to cause cancer in humans. It is found in certain foods, water, air pollution, and some medications. The U.S. Food and Drug Administration (FDA) has set limits on the acceptable levels of NDMA in medications, including metformin, to ensure patient safety.

The recall of metformin 1000 mg tablets is a precautionary measure taken by the pharmaceutical companies to ensure that the medication is free from any contamination. Patients who have been prescribed metformin 1000 mg tablets should check if their medication is affected by the recall and, if so, should contact their healthcare provider for further instructions.

It is important for patients to continue taking their medication as prescribed and not to stop or change their treatment without consulting their healthcare provider. There are alternative formulations and strengths of metformin available that are not affected by the recall, and healthcare providers can work with patients to find the most appropriate alternative if needed.

Reasons for the metformin recall

Metformin, a commonly prescribed medication for the treatment of type 2 diabetes, has recently been subjected to a recall due to concerns over potential contamination with a probable human carcinogen, N-Nitrosodimethylamine (NDMA). The recall has affected certain batches of metformin tablets, including the 1000 mg strength.

1. NDMA contamination

NDMA is a chemical that is classified as a probable human carcinogen, meaning it has the potential to cause cancer in humans. It is commonly found in certain foods, drinking water, air pollution, and some medications. NDMA contamination in metformin tablets is a serious concern as long-term exposure to this chemical can increase the risk of developing cancer.

2. Regulatory standards

The recall was initiated as a result of investigations by regulatory agencies, such as the U.S. Food and Drug Administration (FDA), which sets safety standards for medications. The FDA has established limits for acceptable levels of NDMA in medications, and the recalled batches of metformin exceeded these limits. The recall is a precautionary measure to ensure the safety and well-being of patients using metformin.

3. Manufacturing issues

The contamination of metformin with NDMA is believed to be a result of certain manufacturing processes. The specific cause of the contamination is still under investigation, but it is suspected that the presence of NDMA may be linked to the use of certain solvents or chemicals during the manufacturing of metformin tablets. Manufacturers are working to identify and rectify the issue to prevent further contamination.

4. Patient safety

The recall of metformin is primarily driven by concerns for patient safety. While the risk of developing cancer from short-term use of metformin with low levels of NDMA is considered to be low, long-term exposure to higher levels of NDMA may increase the risk. By recalling the affected batches, manufacturers and regulatory agencies aim to prevent any potential harm to patients and ensure the quality and safety of metformin.

5. Legal requirements

Pharmaceutical manufacturers are legally required to meet certain quality standards and ensure the safety of their products. The recall of metformin is in compliance with these legal requirements, which mandate that medications should not contain harmful substances beyond acceptable limits. Failure to comply with these standards can result in legal consequences for manufacturers.

6. Continuing investigations

The recall of metformin is an ongoing process, and investigations into the extent of the contamination and potential risks are still underway. Regulatory agencies are closely monitoring the situation and working with manufacturers to ensure the safety of metformin. Patients are advised to consult their healthcare providers for alternative treatment options and to stay informed about any updates regarding the recall.

Potential risks and precautions

While Metformin 1000 mg is generally considered to be a safe and effective medication for managing type 2 diabetes, there are some potential risks and precautions that should be taken into consideration. It is important to be aware of these potential risks and to discuss them with your healthcare provider before starting or continuing treatment with Metformin 1000 mg.

Potential risks:

  • Gastrointestinal side effects: Metformin can sometimes cause gastrointestinal side effects such as nausea, vomiting, diarrhea, and stomach discomfort. These side effects are usually temporary and can be managed by taking the medication with food or adjusting the dosage. However, if these side effects become severe or persistent, it is important to consult your healthcare provider.
  • Hypoglycemia: While Metformin itself does not usually cause hypoglycemia (low blood sugar), it can increase the risk of hypoglycemia when taken in combination with other diabetes medications such as insulin or sulfonylureas. It is important to monitor your blood sugar levels regularly and to follow your healthcare provider’s instructions regarding medication dosage and timing to avoid hypoglycemia.
  • Lactic acidosis: Although rare, lactic acidosis is a serious condition that can occur as a side effect of Metformin. It is more likely to occur in individuals with kidney or liver problems, as well as those with conditions that can lead to reduced oxygen supply to the tissues (such as heart failure or respiratory problems). Symptoms of lactic acidosis may include weakness, tiredness, muscle pain, difficulty breathing, stomach pain, and cold or blue skin. If you experience any of these symptoms, seek medical attention immediately.
  • Drug interactions: Metformin can interact with certain medications, including some antibiotics and antifungal medications. These interactions can affect the effectiveness of both Metformin and the other medication. It is important to inform your healthcare provider about all the medications you are taking, including prescription drugs, over-the-counter medications, and herbal supplements, to avoid potential drug interactions.


  • Kidney function: Metformin is primarily excreted by the kidneys, so it is important to have regular kidney function tests before and during treatment with Metformin. If you have kidney problems, your healthcare provider may need to adjust your dosage or choose an alternative medication.
  • Liver function: Metformin is metabolized by the liver, so individuals with liver problems may require dosage adjustments or alternative treatment options. Your healthcare provider may also monitor your liver function during treatment.
  • Alcohol consumption: Drinking alcohol while taking Metformin can increase the risk of lactic acidosis. It is advisable to limit or avoid alcohol consumption while on Metformin treatment.
  • Pregnancy and breastfeeding: Metformin is generally considered safe to use during pregnancy and breastfeeding. However, it is important to consult your healthcare provider if you are pregnant, planning to become pregnant, or breastfeeding, as they can provide individualized recommendations based on your specific situation.

It is important to follow your healthcare provider’s instructions and to report any new or worsening symptoms while taking Metformin 1000 mg. They can provide guidance and make any necessary adjustments to ensure the safe and effective use of this medication.


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What is the recall of Metformin 1000 mg?

The recall of Metformin 1000 mg is a voluntary action taken by the pharmaceutical company to remove certain batches of the medication from the market due to concerns about potential contamination.

Why was Metformin 1000 mg recalled?

Metformin 1000 mg was recalled due to potential contamination with a substance called N-nitrosodimethylamine (NDMA), which is classified as a probable human carcinogen. The recall was a precautionary measure to ensure the safety of patients who may have been exposed to the contaminated medication.

Which batches of Metformin 1000 mg are affected by the recall?

The specific batches of Metformin 1000 mg that are affected by the recall can vary depending on the pharmaceutical company. It is important to check with the manufacturer or consult the FDA’s website for the most up-to-date information on the recalled batches.

What should I do if I have been taking Metformin 1000 mg?

If you have been taking Metformin 1000 mg, it is important to check the lot number of your medication and compare it to the list of recalled batches. If your medication is part of the recall, you should contact your healthcare provider or pharmacist for further guidance. They may recommend an alternative medication or provide instructions on returning the recalled medication.

What are the potential health risks associated with the recalled Metformin 1000 mg?

The potential health risks associated with the recalled Metformin 1000 mg are related to the potential contamination with NDMA. NDMA is classified as a probable human carcinogen, which means it has the potential to cause cancer in humans if consumed at high levels over a long period of time. However, the actual risk to individuals who have taken the recalled medication is considered to be low.

Can I still take Metformin 1000 mg if it is not part of the recall?

If your Metformin 1000 mg is not part of the recall and has not been identified as containing any contaminants, it is generally considered safe to continue taking the medication as prescribed by your healthcare provider. However, if you have any concerns or questions, it is always best to consult with your healthcare provider for personalized advice.

Are there any alternative medications to Metformin 1000 mg?

Yes, there are several alternative medications available for the treatment of diabetes. Some common alternatives to Metformin include sulfonylureas, thiazolidinediones, DPP-4 inhibitors, SGLT-2 inhibitors, and insulin. Your healthcare provider can help determine the most appropriate alternative medication based on your individual needs and medical history.

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