Cloperastine, also known as piperidine and chlorphenxidine, is a non addictive central antitussive drug. It can inhibit the cough center, block the H1 receptor, slightly relieve the spasm of bronchial smooth muscle and congestion and edema of bronchial mucosa, and contribute to the antitussive effect. The antitussive effect is weaker than codeine, without tolerance and addiction. It is suitable for the treatment of frequent cough caused by acute upper respiratory tract inflammation, chronic bronchitis and tuberculosis.

Cloperastine also reduces the intensity and frequency of coughing. Cloperastine has a definite antitussive effect. In addition, it has good tolerance and safety. It has no interaction with other drugs for treating respiratory diseases, such as antibacterial drugs, non steroidal anti-inflammatory drugs and corticosteroids. It can be used especially for children and elderly patients. Therefore, it has great social and economic benefits and good market prospects.