Consult your healthcare practitioner prior to use if you are taking prescription drugs. Do not use if pregnant or nursing. Discontinue use and consult a healthcare practitioner if you have a liver disorder or develop symptoms of liver trouble, such as abdominal pain, dark urine, or jaundice. For a few consumers, gastric discomfort may occur but should not be persistent. If gastric discomfort persists or if you observe other side effects, discontinue use and see your healthcare practitioner.