Vine tea is a deciduous vine that grows and multiplies in a specific geographical and climatic environment. The plant contains a kind of natural plant frost. Its main active ingredient is a flavone, which contains 12.8-13.8 crude protein of flavone. The average content of total flavone is more than 6%, and the highest detection content is 9.37%. It is the highest content of flavone in all the plants found at present, so it is called "King of Flavonoid". In Vietnam, the is no tree with active ingredient content up to 40% like vine tea. Pharmacological effects: - Decreasing in vitro hydrochloric acid and gastric acidity in vivo - Inhibition of ulcers - Pain relief - Inhibited the growth of 14 test bacteria - Inhibition of Helicobacteer pylori bacteria isolated and cultured from biopsy samples of patients with active gastroduodenal ulcers - Antioxidant effect - Anti-inflammatory effect Vine tea extract powder is currently used in 2 form: medicinal materials and finished product.