Sublingual is abbreviated as what?

• A. s.c.
• B. s.o.s
• C. s.l.
• D. sig.

Answer: (C)

Sublingual is the route where a drug is placed under the tongue to dissolve and be absorbed through the oral mucosa. The standard abbreviation for this route is s.l. So the best answer is s.l. because it specifically indicates sublingual administration. Other optionsn represent different things—s.c. is subcutaneous, s.o.s. isn’t a standard route abbreviation, and sig. refers to instructions to the patient, not the route.