Kava root extract is commonly used as an herbal supplement to treat sleeplessness, but some adverse reactions to the herb may cause liver damage, reports the University of Maryland Medical Center. An upset stomach is a common side effect of using the herb, but you still need to report this symptom to your doctor. Drugs.com states that the use of kava root extract could also trigger an allergic reaction, which could be deadly if not treated.
About Kava Root Extract
Kava root was traditionally consumed as a beverage in the Pacific islands, having the same effects as drinking alcohol. The beverage was prepared by grinding the roots into a pulp and then adding the pulp to cold water. The herb causes relaxation and is commonly used to prevent and treat anxiety and insomnia, according to Drugs.com. The use of kava root extract has not been evaluated or approved by the FDA for treatment or prevention of any medical condition. This herb should only be consumed while under the direction of a medical professional.
Liver Damage
The University of Maryland Medical Center reports that there have been more than 30 cases of liver damage reported in Europe, although it's unclear the degree to which kava played in the damage. The use of this product is not intended for long-term use and should not be used for more than three months. Because of these liver damage reports, the FDA released a consumer advisory in 2002 stating that the use of kava root may increase your risk of liver failure.
Allergic Reaction
An upset stomach may also be a sign of an allergic reaction. Anytime you take a new supplement, your immune system identifies the herb as either safe or harmful. Kava root extract is safe for human consumption, but if your body mistakes it as an infectious organism, you will develop an allergy. An allergic reaction causes the body to fight off the substance by creating immunoglobulin E antibodies that trigger greater production of histamine, according to the American Academy of Allergy, Asthma and Immunology. Histamine causes swelling in the lining of your intestines, causing stomach pain, cramping, nausea, diarrhea and vomiting.
Consideration
If you have been diagnosed with liver disease or you're pregnant, do not use kava root extract. MedlinePlus states that the use of kava root extract can cause serious illness, liver damage, jaundice, fatigue and dark urine.
