Dry heat in the stomach and intestines is mainly manifested as a preference for cold drinks, abdominal pain, abdominal distension, constipation, bitter mouth, dry mouth and other symptoms, and its treatment can be used for Ma Zi Ren Pills. Dry heat in the stomach and intestines mainly manifests as constipation, abdominal distension and discomfort, abdominal pain, red face and body heat, dry mouth, bad breath and thirst, preference for cold drinks, uneasiness, short and red urine (small amount of urine, dark yellow in color), red tongue, yellow moss, and number of pulses. The treatment of gastrointestinal dryness and heat should be based on purging the intestines and draining heat, and can be treated with Ma Zi Ren Pills, which is composed of flaxseed, Citrus aurantium dulcis, Magnolia officinalis, rhubarb, ephedra, apricot kernel, white peony, and it has the efficacy of moistening intestines and draining heat and laxative effect, and it can be used for treating the evidence of gastrointestinal dryness and heat. Adverse reactions have not been clarified, allergy is prohibited. If the manifestation of gastrointestinal dryness and heatiness occurs, clinician should be consulted and medication should be taken according to medical advice.