Flu & Infections

Methenamine Mandelate Tablets

starting at $419.99

Methenamine tablets are used to help prevent urinary tract infections (UTIs) in people who experience them often. This medication works as a urinary antiseptic by turning into formaldehyde in acidic urine, which kills bacteria and helps prevent infections from coming back.

  • Methenamine is classified as a urinary antiseptic, not a traditional antibiotic
  • Prescribed for long-term prevention of recurrent urinary tract infections
  • Acidic urine is required for methenamine to work effectively
  • Not used to treat active infections
HSA/FSA Eligible
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  • Methenamine Mandelate Tablets Medication Description

    Methenamine tablets are designed for the prevention of recurrent urinary tract infections, particularly in patients who experience frequent episodes. Unlike antibiotics, methenamine does not directly kill bacteria through systemic action; instead, it relies on the chemical conversion to formaldehyde in acidic urine. This localized antiseptic effect helps maintain a sterile urinary environment and reduces the risk of infection without contributing to antibiotic resistance. Because methenamine requires an acidic environment to work, patients may be advised to take urinary acidifiers such as vitamin C or cranberry supplements. It is typically used as part of a long-term prevention strategy for individuals who cannot tolerate continuous antibiotic therapy or who are at high risk for recurrent infections. Regular monitoring of urinary pH and kidney function is recommended to ensure effectiveness and safety. Methenamine is not suitable for treating active infections and should always be combined with other measures like hydration and good urinary hygiene.
  • Methenamine Mandelate Tablets Side Effects

    Common side effects include mild stomach upset, nausea, and bladder irritation. Serious risks are rare but may include painful urination, rash, or signs of allergic reaction. In patients with kidney problems, methenamine can increase the risk of crystals forming in the urine. Anyone experiencing severe pain, blood in the urine, or persistent discomfort should contact a healthcare provider immediately. Using the medication exactly as prescribed and maintaining adequate hydration helps reduce these risks.
  • Consumer Information Use and Disclaimer

    This information should not be used to decide whether or not to take this medicine or any other medicine. Only a healthcare provider has the knowledge and training to decide which medicines are right for you. TelyRx does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a limited summary of general information about the medicine’s uses from the patient education materials and is not intended to be comprehensive. This limited summary does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not intended to provide medical advice, diagnosis or treatment and does not replace information you may receive from your healthcare provider. For a more detailed summary of information about the risks and benefits of using this medicine, please review the entire patient education information you receive with the medication.

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