Which OTC medication is an effective expectorant commonly used for productive cough?

Correct option is A

Ans. (a) Sol. Guaifenesin helps thin and loosen mucus in the airways, making it easier to cough out. It is widely used in treating productive coughs.
Additional Information: OTC Cold, Cough & Flu Medications:
· Guaifenesin – Expectorant for productive cough
· Dextromethorphan – Cough suppressant for dry cough
· Phenylephrine, Pseudoephedrine – Nasal decongestants
· Diphenhydramine, Chlorpheniramine – Antihistamines for runny nose and sneezing