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Drug interactions between metformin and Tenoretic 100

Results for the following 2 drugs:
Tenoretic 100 (atenolol/chlorthalidone)

Interactions between your selected drugs


atenolol ↔ metformin

Applies to:Tenoretic 100 (atenolol/chlorthalidone) and metformin

Beta-blockers such as atenolol may increase the risk, severity, and/or duration of hypoglycemia (low blood sugar) in patients receiving metFORMIN and certain other antidiabetic medications. In addition, beta-blockers may mask some of the symptoms of hypoglycemia such as tremor, palpitation and rapid heartbeat, making it more difficult to recognize an oncoming episode. Other symptoms of hypoglycemia such as headache, dizziness, drowsiness, nervousness, confusion, nausea, hunger, weakness, and perspiration are not affected. Talk to your doctor if you have any questions or concerns. You may need to monitor your blood glucose levels more frequently, especially if you are prone to developing hypoglycemia. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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chlorthalidone ↔ metformin

Applies to:Tenoretic 100 (atenolol/chlorthalidone) and metformin

Talk to your doctor before using chlorthalidone together with metFORMIN. Chlorthalidone can increase blood sugar levels and interfere with diabetic control. You may need a dose adjustment or more frequent monitoring of your blood sugar to safely use both medications. Due to its effects on the kidneys, chlorthalidone can also increase the risk of a rare but serious and potentially life-threatening condition known as lactic acidosis that may occasionally occur during treatment with metformin-containing products. Lactic acidosis is caused by a buildup of lactic acid in the blood, and is more likely to occur if you have kidney or liver disease, acute or unstable congestive heart failure, dehydration, or an excess intake of alcohol. You should seek immediate medical attention if you develop potential signs and symptoms of lactic acidosis such as fatigue, weakness, muscle pain, increasing drowsiness, abdominal pain or discomfort, fast or irregular heartbeat, difficult or rapid breathing, chills, and other unusual symptoms. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Drug Interaction Classification

The classifications below are a guideline only. The relevance of a particular drug interaction to a specific patient is difficult to determine using this tool alone given the large number of variables that may apply.

Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.

Do not stop taking any medications without consulting your healthcare provider.

Disclaimer: Every effort has been made to ensure that the information provided by Multum is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. Multum's information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill, knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective, or appropriate for any given patient. Multum Information Services, Inc. does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. Copyright 2000-2015 Multum Information Services, Inc. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse, or pharmacist.