Antitussive drugs are medications used to suppress or reduce coughing. They work by blocking the cough reflex or by reducing its intensity. Antitussives are commonly used to treat cough caused by respiratory infections or allergic reactions. Common antitussive drugs include codeine, dextromethorphan, and diphenhydramine. However, it is important to note that antitussive drugs should only be used as directed by a healthcare professional and should not be used to treat coughs caused by asthma or chronic obstructive pulmonary disease (COPD). In some cases, antitussive drugs can cause side effects such as dizziness, drowsiness, or constipation.
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