Pharmacology All of the following are true about antitussives, except A Dextromethorphan is a NMDA blocker which acts as central antitussive B Ambroxol is a mucolytic that causes depolymerisation of mucopolysaccharides C Carbocistene is a mucolytic with free sulphydryl group D Baclofen is a peripheral acting antitussive 💡 Explanation All of the following are true about antitussives, except ✓ Correct Answer: C. Carbocistene is a mucolytic with free sulphydryl group