中药材是整个中药生产的源头。中药材既可经过复杂生产工艺,被直接制成中成药,也可被加工成中药饮片,中药饮片是临床汤剂和中成药生产的原料,还可被加工成中药材提取物,再进一步制成配方颗粒或中成药。中药材饮片、配方颗粒、中成药均可由中药材销售公司、连锁药店及医院等进行销售,各个环节,相互影响,又相互关联。
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