Free San can treat chest tightness and shortness of breath caused by liver depression. It consists of Angelica sinensis, Radix Paeoniae Alba, Radix Bupleurum Chinense, Poria, Rhizoma Atractylodis Macrocephalae and Radix et Rhizoma Glycyrrhizae Praeparata. It is effective in relieving liver depression, strengthening the spleen and nourishing blood. It can be used to treat distension and pain in both sides of the coarseness and ribs caused by liver depression and spleen deficiency, loss of appetite, fatigue, headache, dizziness, irregular menstruation, breast distension and pain. Therefore, chest tightness and shortness of breath caused by liver depression can be treated with Free Pills under doctor’s supervision. It should be noted that Easy Pill should be used with caution in pregnant women, and the adverse effects are not yet clear. Patients with chest tightness and shortness of breath should go to the relevant department of the hospital to clarify the cause of the disease, and should not blindly use drugs.