Cranberries are an organic fruit derivative of the Vaccinium macrocarpon plant species. Intelihealth suggests that while individuals have been seeking cranberry and cranberry juice for relief of urinary tract infections for years, there is not sufficient evidence backed by scientific investigation to prove or disprove this theory. However, cranberry is viewed as a valid phytomedicine--herbal supplement--worthy of further study. As with all alternative or complementary forms of medicine, it is integral to consult a licensed health professional before embarking on a new treatment or attempting to self-medicate.
Contraindication with Warfarin
Cranberry is contraindicated with the drug Warfarin--a blood thinner typically prescribed to heart patients--and may cause excessive bleeding. Especially as it relates to heart patients or individuals with a chronic medical condition, Intelihealth further states that the symptoms requiring this type of attention may be indicative of a change or progression of disease and should not be self-medicated.
Vitamin B12
Cranberry can also increase the effects of vitamin B12 in the body. This is especially true when combined with antacids or a prescribed proton-pump inhibitor such as Nexium. Medline Plus suggests that cranberry has proven successful in studies concerning a reduction of Helicobacter pylori bacteria that live in the stomach and create ulcers. However, it is important to discuss options with the treating physician first.
Pregnancy
Reports among women who are pregnant and taking cranberry pills seem to show an increase in vaginal yeast infections. According to Medline Plus, there do not appear to be any other side effects during pregnancy, although the safety has not been proven beyond a normal intake with diet. One recommendation illustrates the alcohol content available through cranberry tinctures that is a known safety hazard to the developing fetus.
Diabetes
Cranberry and cranberry juice contain significant amounts of sugar that can be problematic for diabetics. Drugs.com stresses the importance of locating a sugar-free formula, although contraindications with diabetes medications are not known. Individuals with this condition should discuss their options with their nutritionist, diabetes educator or physician before attempting to self-medicate. As with most chronic medical conditions, symptoms requiring treatment with cranberry may in fact be indicative of another or more serious health condition and should not be treated at home.
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