The leaves and flowers of the plant Andrographis paniculata, also known as kalmegh, have a role in traditional Chinese and Indian herbal medicine as treatments of infectious diseases. Some research supports this use, particularly for specific illnesses, and the herb is becoming increasingly favored in countries outside of Asia. Andrographis is available commercially in extracts, capsules, tablets and teas.
Upper Respiratory Tract Infections
Andrographis paniculata shows benefits for relieving subjective symptoms of uncomplicated upper respiratory tract infections, as noted by a review of literature published in the April 2004 issue of "Planta Medica." Subjective symptoms are those not able to be measured precisely or not visible to other people. The herb also may have a preventive effect against these illnesses. Standardized extracts of andrographis are promoted as being beneficial for colds and the flu.
Gastrointestinal Uses
The most common traditional use for andrographis has been for relieving digestive problems, according to the University of Michigan Health System. This includes dysentery, an inflammatory intestinal disorder that causes severe diarrhea. True Star Health cites an Indian study in which andrographis in combination with antibiotics was shown useful for treating dysentery.
Liver Protection
Components isolated from andrographis show effectiveness for liver protection. Laboratory and animal research published in the "Indian Journal of Medical Research" in 1990 showed andrographolide's effectiveness in protecting the liver against the hepatitis B virus, and against toxic effects typically caused by paracetamol (acetaminophen) and galactosamine.
References
- University of Michigan Health System: Andrographis
- True Star Health: Andrographis
- "Indian Journal of Medical Research": Effects of Natural Products on Hepatitis B
- "Indian Journal of Medical Research": Hepatoprotective Activity of Andrographolide
- "Planta Medica": Andrographis and Upper Respiratory Tract Infections
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