Cranberry

Traditionally, cranberry ( Vaccinium macrocarpon ) has been used for the treatment and prevention of mild urinary tract infections (UTI). Weak to moderate evidence from the published clinical and pharmacological studies support these claims. How- ever, considering the serious nature of UTI’s, and the potential for long-term conse- quences if not properly treated, patients should contact their physician for an initial evaluation prior to self-medicating with cranberry. Since there are no drug interac- tions reported, cranberry may be used in combination with other medical interven- tions for the treatment of UTI’s. The recommended dose is 3 fluid ounces or 90 ml of a 30% juice or equivalent product for prevention of UTI’s, and 12 to 32 fluid ounces (360 to 960 ml) daily for treatment. No contraindications, precautions, or side effects have been reported in the clinical trials.