Cough Dew can be dependent when taken in large quantities. The main ingredients of cough drops are ephedrine, codeine and paracetamol, which have anti-allergic, antispasmodic and antitussive, sedative and quieting effects. Codeine can be addictive if taken for a long time. Cough Dew timed dose of cough, cough and phlegm caused by various causes have good results; because the main ingredients ephedrine, codeine and paracetamol with excitatory, anesthetic and tranquilizing effect, a large number of doses can produce dependence; can also be dizziness, panic, itchy skin, irritability, drowsiness, numbness of the limbs in the worst cases, such as respiratory distress and other side effects. May have sinus tachycardia, pregnant women and children should be used with caution; allergy is prohibited. If you feel unwell, consult a doctor in time, we recommend that patients consult a respiratory doctor in a regular hospital, do not take medication blindly on your own.