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Writer's pictureKatie Reigelsperger

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!



267 Comments


Sozit Omar
Sozit Omar
20 hours ago

sig codes are important to help the patient understand any direction with their medications a patients should take when it should be taken and how much of it should be taken

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Something that motivates me is my dad , he’s always helped me so much . I’m also a motivated person I feel and I know I need to get things done to be successful.

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Easier way healthcare people communicate them with one another

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Some of these abbreviations that i knew before reading this blog post?  Are

OD=right eye

OS=Left eye

OU=Both eyes

PO= By mouth

CAP= Capsule

TAB=Tablet

TSP=Teaspoon

TBSP=Tablespoon

Just from my background in the health care field and being a mom lol

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I believe sig codes help doctors nurses and pharmacists to communicate through medication. I knew some sig codes before I read this post and took this class. It helps to identify and understand the medical language.

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