One bottle of 200 teapills, approximately an 8 day supply. Er Chen Teapills also go by the PinYin name Er Chen Wan. Some other common names are Two Olds Pill, Two Aged Ingredients Formula, Er Chen Tang, Two Chen Pill, and Two Old Valuable Herbs Pills. This formula is beneficial to help rid excess phlegm and dampness from the lungs, support normal respiratory health and lung function. There are different kinds of phlegm. See an acupuncturist or doctor of Chinese medicine for guidance. It also may benefit the digestive system.