凡用通利攻逐的药物为主药,具有通导大便,排除肠胃积滞的方剂,叫做泻下剂,由于病有寒热虚实的不同,证有热结、寒结、燥结、水结与虚实并见之异,故本类方剂可分为寒下、温下、润下、逐水、攻补兼施五类。在选用泻下剂时,应注意的几点是:凡表证未解,里实未形成者,不宜过早采用;年老体弱、孕妇、新产血亏、失血过多、胃肠溃疡等均应慎用,若必要时,可采用攻补兼施,或攻后即补的方法。一、寒下寒下法是以寒性泻下药为主,佐以行气破结药组成的方剂,适用于内有燥屎、宿食、水结等,症 All drugs that use Tongli to attack are the main drugs. They have a way to induce bowel movements and rule out gastrointestinal stagnation. They are called purgatives. Because of the difference between cold and heat, they have hot knots, cold knots, dry knots, and water knots. Different from the actual situation, it can be divided into five categories: cold, warm, run, water, attack and repair. In the use of purgatives, the following points should be noted: Where the evidence is not resolved, those who are not formed, should not be used prematurely; frail elderly, pregnant women, new blood loss, excessive blood loss, gastrointestinal ulcers, etc. Should be used with caution, if necessary, can be used to attack and supplement, or after the attack is the way to fill. First, under the cold and the cold method is based on cold diarrhea drugs, combined with qi and breaking the composition of the prescription drugs, apply to the inside there is dry diarrhea, food, water knots, etc.