The maximum daily dosage of Heishun Tablet for clinical use is generally 15g, and the specific dosage should be determined by the doctor’s diagnosis. Heishun Tablet is the concoction of Radix et Rhizoma Polygoni Multiflori, which is pungent, sweet, hot and poisonous, and has the efficacy of restoring yang to save reversal (rescuing fainting, unconsciousness, etc. by warming and replenishing yang), tonifying fire to help yang (replenishing yang qi in the body), and dispersing cold to alleviate pain (alleviating pain by dispelling the cold evil in the body). It can be used in the treatment of deficiency of yang, cold limbs and pulse, cold pain in the heart and abdomen (the location of the heart and abdomen feels cold and painful), cold vomiting and diarrhea, impotence and cold-dampness paralysis and pain, etc., the maximum dosage of 15g per day. It should be noted that it is toxic, so pregnant women should be prohibited, and this product should not be used with half-summer, piper betel, shellfish, Ampelopsis, white and other Chinese herbs, decoction of internal use should be decocted, decocted for a long time to reduce toxicity, the specific use should also be carried out under the guidance of a physician strictly.