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Methenamine Mandelate Tablets
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  • FDA PI

Methenamine Mandelate Tablets

Dosage form: tablet, film coated
Drug class:Urinary anti-infectives

Medically reviewed by Drugs.com. Last updated on Oct 1, 2021.

Disclaimer: This drug has not been found by FDA to be safe and effective, and this labeling has not been approved by FDA. Read further information about unapproved drugs.

Methenamine Mandelate Tablets Description

Methenamine mandelate, a urinary antibacterial agent, is the chemical combination of mandelic acid with methenamine. Methenamine mandelate is available for oral use as film-coated tablets.

Methenamine Mandelate Tablets contain 500 mg and 1000 mg (1 g) methenamine mandelate and the following inactive ingredients: croscarmellose sodium, FD&C blue #2 aluminum lake, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, silicon dioxide, talc and titanium dioxide.

Methenamine Mandelate Tablets - Clinical Pharmacology

Methenamine mandelate is readily absorbed but remains essentially inactive until it is excreted by the kidneys and concentrated in the urine. An acid urine is essential for antibacterial action, with maximum efficacy occurring at pH 5.5 or less. In an acid urine, mandelic acid exerts its antibacterial action and also contributes to the acidification of the urine. Mandelic acid is excreted both ...