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大黄是最常用中药之一,中医处方多应用其炮制品。大黄的炮制品主要有生大黄片、酒大黄(酒军)、熟大黄(熟军)和大黄炭等4种。中医主要用途为下肠胃积滞、泻血分实热。这些用途是和大黄的泻下作用分不开的。西医则用小剂量为苦味健胃药,大剂量为泻下药,泻后有轻微的收敛作用。大黄的泻下作用是由于蒽醌类,主要是结合性大黄酸的存在,其它蒽醌类成分或多或少会起一些协同作用。大黄中的鞣质具有收敛作用。此外,大黄的苦味和缓下作用,使得
Rhubarb is one of the most commonly used traditional Chinese medicines, and Chinese medicine prescriptions mostly use its processed products. Rhubarb’s processed products mainly include raw rhubarb tablets, rhubarb (Jinjun), cooked rhubarb (cooked army), and rhubarb charcoal. The main purpose of traditional Chinese medicine for the lower gastrointestinal stagnation, diarrhea, blood heat. These uses are inseparable from the diarrhea effect of rhubarb. Western medicine uses a small dose of bittersweet stomach, large doses of diarrhea, and slight convergence after diarrhea. The purgative effect of rhubarb is due to the presence of terpenes, mainly the combined rhein, and other terpenoids may act more or less synergistically. The tannin in rhubarb has astringent effect. In addition, the bitter and slow action of rhubarb makes it