药物产生的生物效应,只有当药物分子到达作用部位之后,其原有的药理作用才能发挥。它与药物的理化性质、剂型、药物的吸收、代谢、排泄等因素都有密切的关系。本文介绍药材加工制备等因素与疗效的关系,以便引起医药人员共同注意,从多方面来提高疗效。一、药材采收对疗效的影响:药材中的药效成份在植物生长的整个过程中并非恒定,往往受季节的影响而有变化。一般花类药在花蕾时采取疗效高;根茎类药在秋冬时 The biological effects of drugs can only be exerted when the drug molecules reach the site of action. It is closely related to the physical and chemical properties of drugs, dosage forms, drug absorption, metabolism, and excretion. This article describes the relationship between the factors such as the preparation of medicinal herbs and the therapeutic effect, so as to arouse the medical staff’s common attention and improve the curative effect from many aspects. First, the impact of medicinal herbs harvest on efficacy: The medicinal ingredients in medicinal herbs are not constant during the whole process of plant growth and are often affected by seasonal changes. The general flower type medicine has a high curative effect at the flower bud; the root and stem medicine is in autumn and winter