Dang shen crude Herbal Medicine Radix Codonopsis pilosula Danshen slice

Danshen tablet is a famous Chinese patent medicine. As a blood regulating agent, it has the effect of promoting blood circulation and removing blood stasis. It is used for chest obstruction caused by blood stasis. The symptoms include chest pain, fixed pain and dark purple tongue; Angina pectoris of coronary heart disease patients with the above syndrome. The rhizome of this product is short and thick, and the top sometimes remains the stem base. Some of them are branched and have fine fibrous roots, 10-20cm in length and 0.3-lcm in diameter. The surface is brownish red or dark brownish red, rough, with longitudinal wrinkles. The epidermis of the old root is loose, purple brown, often scaly. It is hard and brittle, with loose section, cracks or slightly flat and dense. The skin is brownish red, the wood is grayish yellow or purplish brown, and the bundle of vessels is yellowish white and arranged radially. The taste is bitter and astringent.