The rapid cough relieving drugs include compound licorice tablets, dextromethorphan, codeine phosphate, loquat cough relieving syrup and Zhizhi syrup. Compound licorice tablets contain both traditional Chinese medicine and western medicine. If it is complicated with gastritis and gastric ulcer, it may aggravate the condition, so use it with caution. Dextromethorphan and its compound preparations, such as phenamine and pseudoephedrine, are suitable for severe cough, and the first choice is severe at night. Codeine phosphate can be used for patients with severe cough, which has strong antitussive effect and is a prescription drug. Long-term use can cause addiction. In addition, the primary cause of cough should be clearly defined, and symptomatic treatment should be taken to accelerate the improvement of symptoms.

"Cough medicine" is a common spoken language, and its full name should be "expectorant, antitussive and antiasthmatic medicine", including expectorant medicine and antitussive and antiasthmatic medicine. Drugs that mainly eliminate phlegm or phlegm are called expectorants, and drugs that can relieve or stop cough and wheezing are called cough and asthma drugs.

Phlegm-resolving drugs are mainly used for cough with excessive phlegm, unpleasant expectoration and phlegm-related diseases such as gall and scrofula. Cough-relieving and asthma-relieving drugs are mainly used to treat various diseases with symptoms of cough and asthma.

Definition: A kind of traditional Chinese medicine with expectorant, expectorant, cough and asthma relieving functions, which is called "expectorant, cough and asthma relieving medicine". The common people call it cough medicine for short.

Function: These drugs are generally divided into expectorant drugs and antitussive and antiasthmatic drugs. Among phlegm-resolving drugs, those with pungent and dry nature have the effects of drying dampness and resolving phlegm and warming cold phlegm; Those who are bitter and slightly cold in nature have the functions of clearing away heat phlegm, moistening dryness and resolving phlegm. Among the antitussive and antiasthmatic drugs, due to their different tastes, they have the functions of dispersing lung, lowering lung, purging lung, clearing away lung heat, moistening lung, astringing lung, relieving cough and relieving asthma respectively. Some drugs also have the effects of dispersing stagnation, relieving swelling, calming the wind, relieving convulsion, clearing away heat and diuresis, moistening the intestines and relaxing the bowels.

Drugs that mainly eliminate phlegm or phlegm are called expectorants, and drugs that can relieve or stop cough and wheezing are called cough and asthma drugs. Or every time you cough, you will cough with more phlegm. Cough, expectoration and wheezing often exist at the same time, and they are mutually causal. In treatment, expectorant drugs and cough and asthma drugs are often compatible with each other. Phlegm-resolving drugs are mainly used for cough with excessive phlegm, uncomfortable expectoration and phlegm-related diseases such as gall and scrofula. Cough-relieving and asthma-relieving drugs are mainly used to treat various diseases with symptoms of cough and asthma.

Phlegm referred to in traditional Chinese medicine has two meanings. First, expectoration is in a narrow sense, which is mostly caused by feeling exogenous pathogens, lung qi stagnation, body fluid not being condensed, or water and dampness condensed due to poor spleen transport, such as chronic bronchitis, throat inflammation or cough caused by chronic lung diseases. First, it refers to all kinds of phlegm retained in the body, which is a broad sense of phlegm, and it includes many phlegm syndromes with some special diseases, such as gall. These drugs mainly have the following pharmacological effects.