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Pharmacology
All of the following are true about antitussives, except
Dextromethorphan is a NMDA blocker which acts as central antitussive
Ambroxol is a mucolytic that causes depolymerisation of mucopolysaccharides
Carbocistene is a mucolytic with free sulphydryl group
Baclofen is a peripheral acting antitussive
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