Pepper, also known as Sichuan pepper. Belongs to the Brassicaceae family of plants. Medicinal red color is good, the fruit skin name pepper red, seed name pepper, are used for medicinal purposes. This species is usually identified by a tuft of villous hairs at the base of the abaxial surface of the leaflets, numerous and large pericarp glands, and the absence of an ovary stalk.

The flavor is pungent, warm, and slightly toxic.

Composition of the fruit contains volatile oil (limonene, witherol, geraniol, etc.), sterols, unsaturated organic acids.

Pharmacological antibacterial test: pepper on anthrax bacillus, hemolytic streptococcus, diphtheria bacillus, diphtheria, pneumococcus, staphylococcus aureus, lemon and white staphylococcus, bacillus subtilis and other ten kinds of gram-positive bacteria, as well as Escherichia coli, Sungai's dysentery bacilli, bacillus contortus, typhoid fever and paratyphoid fever bacilli, Pseudomonas aeruginosa, Vibrio cholerae and other intestinal pathogens are obviously inhibitory effect. Its 1:4 water immersion also has an inhibitory effect on astrocytic Nucella. According to animal testing, a small amount of continuous service can promote the development of glands related to metabolism, and a large amount can promote the development of glands related to reproduction. This proves the ancient understanding of "warming the yang and tonifying the kidneys".

Functions pepper red: stomach, roundworms, and warm and strong effect. Pepper eye for diuretic, used for chronic edema ascites. Ancient formula, "Hejiao Drabanemerosa hebecarpa Huangwan", uses pepper as a water-expelling agent.