Uses: Kava has been used for anxiety and stress. Germany, Switzerland, and Canada have banned products containing kava because of the risk of liver injury. The US FDA has issued a public safety alert about kava and liver problems. Some herbal/diet supplement products have been found to contain possibly harmful impurities/additives. Check with your pharmacist for more details regarding the particular brand you use. The FDA has not reviewed this product for safety or effectiveness. Consult your doctor or pharmacist for more details.