Urinary Tract Infections are the most common bacterial infection in older people and recurrent UTI's are particularly prevalent in older woman. Current management of UTI's usually involves repeated courses of antibiotics or low doses of long term prophylaxis contributing to excessive antimicrobiotic therapy. The side effects of antibiotic therapy include oral and vaginal thrush, gastrointestinal infection and diarrhea which can be severe enough to stop treatment.

A published, randomized, controlled study published in peer reviewed Journal of Antimicrobial Chemotherappy concluded that a daily dose of 500 mg of Cran-Max provided comparable results to the commonly prescribed antibiotic trimethoprim for the treatment of recurrent UTI's in older woman with none of the adverse effects associated with the antibiotic.

The National Center for Complementary Medicine reported that cranberry proanthocyanidins (PAC) help reduce the adhesion of certain E. Coli bacteria to the urinary tract walls.