NasAl route is typically delivered by which method?

• A. Spray
• B. Pill
• C. Injection
• D. Inhalation through the mouth

Answer: (A)

Delivery through the nasal route means placing the medicine in the nose and letting it be absorbed across the nasal mucosa. This is typically done with a spray because spraying evenly coats the nasal lining, allowing rapid absorption into the bloodstream and a quick onset of action. Pills must be swallowed and digested, which is not nasal. Injections bypass the nasal mucosa, and inhalation through the mouth targets the lungs, not the nasal passages. So the nasal route is most commonly delivered as a spray.