The price of Dihuang is around $20 to $60 per catty. Prices may vary depending on different specifications, packaging, manufacturers, regions and distributors, so please refer to the prices in your local formal medicine organization. Di Huang is a heat-clearing medicine, cold in nature, sweet and bitter in flavor, and is attributed to the heart, liver and kidney meridians. Its effects are to clear heat and cool blood (relieve blood heat by clearing heat), nourish yin and promote the production of body fluid. It is mainly used for treating heat entering the camp and blood (heat evil invades the body to a deep extent and the symptoms are more severe), warm poisonous spots (warm and hot poisonous evil invades the body resulting in spots and plaques on the skin), bleeding from blood-heat, dry mouth and throat, and constipation due to injury to the body fluid. Due to its cold nature, Dihuang is prone to neutralize the spleen and stomach, so it should not be used by people with spleen deficiency, dampness and stagnation, distention and fullness in the epigastrium (abdomen), and loose stools. The adverse effects of Dihuang are not known. If there is a need to use the drug, it should be used under the guidance of a medical professional, not blindly self-medication.