Tongji hospital affiliated to tongji medical college huazhong university of science and technology department Guo Jieru 
 
 
Source: health 

    Cough is a protective reflex action of the human body, can be in the respiratory tract foreign bodies or secretions. But cough is also a kind of pathological reaction, is a common respiratory disease, and when the nose, throat, bronchial, lung and pleura viscera is inflammation, blisters, physics, chemistry, or the stimulus such as allergies, it could cause a cough. Pathology sex cough often bring great pain and damage to the patient, should give active treatment.
 
    There are many types of cough medicine, take different indications. Need according to the patient to choose the appropriate drugs. Clinical commonly used some cough medicine is divided into antitussive, expectorant and antiasthmatic three broad categories:
 
    Cough medicine: including codeine, pholcodine, dextromethorphan, spray d Lin, etc. This kind of medicine for respiratory tract mild inflammation of excitant dry cough effect is good, but codeine and pholcodine are prone to addiction, in under the guidance of a doctor.
 
    Expectorant, including will rinse, ammonia bromine, strong rarefaction glue etc. The drugs can be liquefied sputum, promote the respiratory tract mucosa cilia movement, to cough up the phlegm easily, thus indirectly play a cough. Difficult for bronchitis, phlegm cough up out of the patients can give preference to the drugs.
 
    Antiasthmatic: including ephedrine, aminophylline, meng LuSi, salbutamol, terbutaline, c quattro, etc. Out of disease is caused by a bronchial smooth muscle spasm, so antiasthmatic can through different mechanisms to alleviate bronchial smooth muscle spasm, relax and expand, thus can alleviate symptoms of short of breath, difficulty breathing. This class of drugs is mainly used in the treatment of bronchial asthma and wheezing model of chronic bronchitis and emphysema, bronchospasm, etc.
 
    In addition, there are some cough medicine from Chinese herbal medicine, mostly compound preparations, such as the brown mixture, snake gall fritillary bulb become pipagao in, acute bronchitis syrup, the g cough capsule, etc., mainly by reducing the local nerve endings stimulate the antitussive effect to play. Of cough caused by chronic pharyngitis give priority to choose with clear throat, zi lung Yin snake gall fritillary bulb become pipagao in; For cough caused by a cold can choose brown mixture, cough capsule, etc.
 
 
 
 
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