The formula dosage of Maimendong Decoction is 42g of Maimendong and 6g of Pinellia ternata. According to the inquiry of official website of Yangshengtang, there is a special prescription dosage of Ophiopogon japonicus and Pinellia ternata, 42g for Ophiopogon japonicus and 6g for Pinellia ternata. Comprise ginseng, licorice, japonica rice and jujube. Maimendong decoction has the effects of moistening lung, benefiting stomach and reducing adverse reactions. It is mainly used to treat deficiency-heat lung flaccidity with symptoms of cough, salivation, shortness of breath and sore throat.