Shanhaidan Capsule is effective in benefiting qi and activating blood (tonifying qi and blood, making the body full of qi and blood, and the blood veins smooth), promoting paralysis and clearing the channels, and is mainly used for the treatment of thoracic paralysis (tightness and pain in the chest) caused by deficiency of qi and stasis of blood and stagnation of cardiac blood (cardiac veins and channels blocked by stasis of blood). Shanhaidan Capsule is a kind of Chinese patent medicine, which can be used in clinic for the treatment of chest paralysis caused by deficiency of heart qi and stasis of heart blood (insufficiency of heart qi, obstruction of blood circulation), symptoms include chest tightness, stabbing pain in the anterior region of the heart, pain in a fixed place, aggravated by physical exertion, relieved by rest, palpitation (accelerated heartbeat, often accompanied by heartburn), fatigue, purplish and dark tongue, and thin and astringent pulse, etc. Clinically, there are occasional cases of abdominal distension after taking it. Abdominal distension, pain in the liver area and upper gastrointestinal bleeding are occasionally seen clinically after taking it. This drug contains He Shou Wu, so it should not be used continuously in overdose and for a long period of time; a few patients have a feeling of dryness in the mouth and tongue during the period of taking the drug, and should drink more water. In short, patients must take Shanhaidan capsule under the guidance of a doctor, do not self-medication, so as not to delay the condition, the health of the body adversely affected.