You are in Drugs and Herbs . Although Green Tea has not been officially recognized as a medicinal agent, it is known to be effective against diarrhea and upset stomach. In Asian medicine, it is used to treat heart pain, dizziness, hemorrhoids, headache, excessive thirst, indigestion, and drowsiness.
Homeopathic practitioners recommend it for headache, heart conditions, and insomnia.
Taken in moderation, it has mild painkilling and stimulant effects. In excess, it can cause insomnia and digestive problems. Green and black tea come from the same plant and differ only in their method of production. Green Tea is dried for a shorter time, and is heated sooner to prevent fermentation. The plant is also cultivated in Indonesia, Turkey, Pakistan, Malawi, and Argentina.