The efficacy of Compound Petroselin Tablets is to suppress cough and expectorant, which can be effectively used in chronic bronchitis. The main ingredients of Compound Chinese Cabbage Tablets are Chinese Cabbage 125mg, Chlorpheniramine Maleate 2mg. Chinese Cabbage is a kind of isocoumarin compound extracted from Chinese Cabbage, which can improve chronic bronchitis, and has excellent effect of suppressing cough and expectorant. Chlorpheniramine Maleate has strong receptor blocking effect, which can improve the respiratory symptoms caused by allergy, and also has a mild inhibitory effect on the central nervous system. Some people may experience adverse reactions such as mild drowsiness, dry mouth and fatigue after taking Compound Petroselin Tablets. You need to strictly follow the doctor’s instructions when taking Compound Petroselin Tablets, and it is not recommended to take the drug blindly, which may affect one’s health.