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Can Riomet interact with other medications or foods?

Riomet (metformin) can interact with other medications, including:
  • antihistamines
  • painkillers, including aspirin, acetaminophen (Tylenol), ibuprofen (Advil) and naproxen (Aleve)
  • angiotensin converting enzyme (ACE) inhibitors
  • antibiotics (including penicillin, methicillin and sulfa antibiotics)
  • beta-blockers
  • calcium channel blockers
  • cimetidine (Tagamet) and ranitidine (Zantac)
  • diuretics
  • oral contraceptives or hormone replacement therapy
  • insulin or other diabetes medications
  • cold and asthma medications
  • medications to treat mental illnesses
  • thyroid medications
  • oral steroids
  • prednisone
Riomet also may be affected by the Chinese weight-loss herb Aristolochia. Be sure to tell your doctor about all the medications, vitamins and supplements you are taking before starting Riomet.

Drinking large amounts of alcohol or drinking alcoholic beverages frequently while taking Riomet may cause low blood sugar and also can increase your risk of developing a serious side effect called lactic acidosis. Talk with your doctor about how much alcohol you can safely consume while taking Riomet.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.