Final answer:
Bronchodilators relax the bronchial muscles. Antitussive suppresses or blocks the cough reflex. Decongestant reduces nasal swelling.
Step-by-step explanation:
The match the drug with its mode of action are:
- bronchodilators: relaxes the bronchial muscles
- antitussive: suppresses or blocks the cough reflex
- decongestant: reduces nasal swelling
Learn more about Matching drugs with their mode of action