The safe and effective dose for any use has not yet been established.
(Click Kava Dosage for more information.)
Many people believe that natural products, such as kava, have no side effects. However, many natural products cause side effects, some of which can be quite serious. This supplement can cause side effects, such as:
- Severe liver damage
- Stomach upset
- Abnormal muscle movements or spasms
- Dry, scaly, yellowed skin.
(Click Kava Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)
Drug InteractionsKava may interact with several other medications or supplements (see Kava Drug Interactions).
At this time, it does not appear to be safe, due to concerns about liver toxicity. Some people may be more likely than others to experience problems due to the supplement. You may be at high risk of dangerous side effects if you:
- Have liver disease, such as liver failure, cirrhosis, or hepatitis
- Have Parkinson's disease
- Have depression
- Have any allergies, including allergies to food, dyes, or preservatives.
- Are pregnant or thinking of becoming pregnant (see Kava and Pregnancy)
- Are breastfeeding (see Kava and Breastfeeding).
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Kava Safety for more information, including any available warnings and precautions.)