Cranberry has not been approved by the FDA to treat any disease, and it should not be substituted for prescription medications.
Do not take cranberry if you are allergic to it.
Before taking cranberry, talk to your doctor, pharmacist, herbalist, or other healthcare provider. You may not be able to use this product if you have ever had a kidney stone or if you take a blood thinner such as warfarin (Coumadin).
Cranberry will not treat bacteria that causes a bladder infection.
Cranberry has not been evaluated by the FDA for safety, effectiveness, or purity. All potential risks and/or advantages of cranberry may not be known. Additionally, there are no regulated manufacturing standards in place for these compounds. Some marketed herbal supplements have been found to be contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.
Stop using cranberry and call your doctor at once if you have any symptoms of a bladder infection, such as pain or burning when you urinate, blood in your urine, severe stomach pain, or urinating less than usual or not at all.
Less serious side effects are more likely to occur, and you may have none at all. Tell your doctor, pharmacist, or healthcare provider about any unusual or bothersome side effect.