The use of tea as a panacea for high-fever diseases date back to the ancient China. The green tea is a stronger antibacterial than the black one. Used as a drug to stop the dysenteria in Russia, it was found to be more effective than manyther expensive drugs.

In 1987. considerable quantities of amino-butyric acid were produced through the processing of a new species of tea called "gabaro" in oxygenless environment. This substance reduced the blood pressure by 14 to 17 percent in the rats after a 20 day treatment.