Antitussive, anti-inflammatory, local anesthesia. Dioxaprozin hydrochloride granules have strong antitussive effect, antihistamine can relieve the contraction and spasm of bronchial smooth muscle, as well as anti-inflammatory and local anesthetic effects. Clinically, it is mainly used to treat allergic cough, such as bronchial asthma, dry cough, allergic dermatitis and skin pruritus caused by various reasons. Some patients may have adverse reactions such as drowsiness and fatigue after taking this drug. Because the toxic dose of the drug is very close to the therapeutic dose, it is used at a low dose or not more than the extreme dose. It should be used with caution for patients with epilepsy and liver dysfunction, while it is prohibited for patients with allergy to this drug, as well as those working at heights and operating precision instruments.