What are Sig Codes!?
If you’ve ever received a handwritten prescription and aren’t sure what all of the codes and initials mean, you’re not alone! Sig codes are a way for the doctor to communicate to the pharmacy which medication the patient should take, when it should be taken, and how much of it should be taken. Most sig codes are derived from the Latin language which can make them a bit more confusing, so at KLR Pharmacy Technician Training School, we use handy clues to remember some of the trickier ones! It is also important to note that sig codes can be written in capital or lowercase letters; either way they indicate the same meaning. Here is a guide to keep on hand of some of the most frequently used sig codes and their meanings for prescriptions!






sig codes are important because they help know when and how to take the prescription
sig codes are important because it helps them know how and when the drugs should be taken
Why are sig codes important?
Sig codes are important because they give pharmacy technicians and pharmacists clear, standardized instructions for how a medication should be taken or used. They help prevent medication errors and ensure patients receive the correct directions.
I think the most commonly used sig code would be PO because they majority of medications that people take are taken by mouth
Did you already know some of these abbreviations before reading this blog post? If so, which ones were they?
Before reading the blog post and attending class 10/30, i knew the terms PRN, Q, PO, and PC, due to my patient care tech class awhile ago!