Regular doses of cassia seeds generally do not harm the liver; large amounts or long-term use may cause liver damage. Cassia seeds have the effect of clearing heat and brightening the eyes (removing heat from the body and promoting the recovery of eyesight), moistening the intestines and relaxing the bowels. The main treatment for eye redness and swelling pain, shyness and tears (eyes afraid of light, often tears), dark eyes, headache, dizziness, intestinal dryness and constipation. Caution should be exercised for people with cold spleen and stomach (spleen and stomach weak and cold) and loose stools (thin and unformed stools). The adverse reactions and contraindications of cassia seeds are not clear, if used with other drugs may occur drug interactions, please consult your physician or pharmacist for details. If the patient has any discomfort, please go to the regular medical institutions; if you need to use cassia seeds, must be under the guidance of a professional doctor to use drugs.