Dextromethorphan is an opoid synthetic antitussive, essentially free of analgesic and addictive properties and the main side effects are respiratory depression.
Expectorant is a drug that aid in removing thick tenacious mucus from respiratory passages, e.g. Ipecac alkaloid, sodium citrate, saline expectorant, guanfenesin, potassium salts Mucolytics are agents that liquefy mucus and facilitate expectoration, e.g.acetylcysteine.
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