Question

Which of the following nasal decongestants is an \(\alpha_2\) agonist?

• A. Oxymetazoline
• B. Terbutaline
• C. Salbutamol
• D. Methotrexate

Hint:

Nasal decongestants like oxymetazoline work via \(\alpha_2\) receptor-mediated vasoconstriction to reduce swelling and congestion.

Answer 1

The Correct Option is A

Oxymetazoline is a nasal decongestant that acts primarily as an \(\alpha_2\)-adrenergic receptor agonist causing vasoconstriction of nasal blood vessels, which reduces nasal congestion.

Terbutaline and Salbutamol are \(\beta_2\)-agonists primarily used as bronchodilators. Methotrexate is an antimetabolite and not related to adrenergic receptors.