What does Sig (signa) mean?

• A. Write
• B. Swallow
• C. Measure
• D. Inject

Answer: (A)

Sig comes from Latin signa, meaning “let it be written” or “written instructions.” In a prescription, this portion tells the pharmacist and patient how to use the medicine by outlining the directions to be written on the label—dose, route, frequency, and any special notes. So the meaning is essentially the written directions for use. For example, a sig might read: “Take one tablet by mouth every 8 hours for 7 days.” This shows why Write is the best answer: sig = what to write on the label for proper use.