矿石、贝壳类中药是一类质地坚硬、不易煎出的药物。因此,医生在处方时常注明“捣碎”、“打”、“先煎”等字样。笔者认为采用“捣碎”“打”、“先煎”等传统方法难以达到用药量与药效相一致的目的,并存在药材的生物利用度低、浪费大等问题。这是因为在实际配方中这类药物是从来不过筛的,虽然捣碎,大 Ore and shellfish are hard drugs that are not easily decocted. Therefore, doctors often specify the words “mashing,” “hit,” and “fried”. The author believes that the traditional methods such as “mashing”, “fighting” and “pre-cooking” are difficult to achieve the purpose of consistent drug dosage and efficacy, and there are problems such as low bioavailability and waste of herbs. This is because in the actual formula, this type of drug is never sieved, although it is crushed and large.