Which statement best describes the absorption of sublingual and buccal medications?

Which statement best describes the absorption of sublingual and buccal medications?

• A. Only the stomach absorbs these meds.
• B. Sublingual and buccal meds are absorbed through the mouth's mucous membranes.
• C. Absorption occurs only in the intestines.
• D. Only topical meds are absorbed.

Answer: (B)

Absorption for sublingual and buccal medications happens through the mouth’s mucous membranes. When the drug is placed under the tongue (sublingual) or between the cheek and gum (buccal), it dissolves and passes directly into the bloodstream via the rich network of vessels in that lining. This route lets the medicine enter systemic circulation quickly and skips the digestive tract and the liver’s first-pass metabolism, which is why onset is fast. Statements that limit absorption to the stomach or intestines or that claim only topical meds are absorbed don’t fit, because the key site here is the oral mucosa, not the stomach or intestines, and these routes are specifically designed for systemic absorption rather than skin-only topical use.

Absorption for sublingual and buccal medications happens through the mouth’s mucous membranes. When the drug is placed under the tongue (sublingual) or between the cheek and gum (buccal), it dissolves and passes directly into the bloodstream via the rich network of vessels in that lining. This route lets the medicine enter systemic circulation quickly and skips the digestive tract and the liver’s first-pass metabolism, which is why onset is fast. Statements that limit absorption to the stomach or intestines or that claim only topical meds are absorbed don’t fit, because the key site here is the oral mucosa, not the stomach or intestines, and these routes are specifically designed for systemic absorption rather than skin-only topical use.