The difference between Kaixiang Shunqi Pill and Chaihu Shu Liver Pill is drug composition, efficacy and main treatment. 1. drug composition: open chest and smooth qi pill is composed of betel nut, fried petunia seeds, ginger thick park, vinegar three prongs, Chenpi, wood incense, vinegar curcuma, pig’s tooth soap. Chaihu Shu Liver Pill is composed of Poria, Paeonia lactiflora, Citrus aurantium dulcis, Cardamom, Glycyrrhiza glabra, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Polygoni Multiflori, Radix et Rhizoma Polygoni Multiflori, Radix et Rhizoma Polygoni Multiflori, Radix et Rhizoma Polygoni Multiflori and Rhizoma Polygoni Multiflori. 2. Efficacy: The efficacy of Kai Xie Shun Qi Pill is to eliminate stagnation, regulate qi and broaden the chest. Chai Hu Shu Liver Pill is effective in relieving flatulence, relieving pain and soothing the liver and regulating qi. 3. Indications: Kai Chest Shun Qi Pill is used for the distension and pain in the epigastrium (abdomen) caused by Qi stagnation, stopping water and food, chest and diaphragm fullness (stomach distension and discomfort) (bloating), and eating and drinking less. Chai Hu Shu Liver Pill is used for liver-qi disharmony, chest and hypochondrium (a collective term for the chest and ribcage area) lumpiness (distension), vomiting of sour water, and food stagnation. Adverse effects of Kaixiao Shunqi Pill and Chaihu Shu Liver Pill have not been clarified, and are contraindicated in those who are allergic to both, and Kaixiao Shunqi Pill is contraindicated in pregnant women. Specifically need to be used under the guidance of a doctor.