Sig Codes are common Latin abbreviations used by physicians and pharmacies when communicating prescription information to each other. Common examples of Sig codes are QD, from Latin “quaque die” or “once a day” , TID (Latin “ter in die”, or “three times a day”), and PO (Latin “per os”, or “by mouth”).

What does SIG stand for in pharmacy?

“Sig” is short for the Latin “signetur.” This means “let it be labeled.” You may see this on your prescription just before the directions. “Sig” tells the pharmacy what they should include on the drug’s label. This ensures you will know how and when to take the medication.

What does Mitte mean on a prescription?

P.O. is the Latin abbreviation for “ per os” which translates as by mouth or orally. And Mitte followed by a numerical amount translates as “send”, meaning “give the patient the following amount”.

What do you put in a prescription sig?

The Sig should include information on how much drug to take, how to take it, and how often to take it. For example, if you would like your patient to take one 650 mg tablet of acetaminophen every six hours, you would write “Take 1 tablet by mouth every six hours” or, using abbreviations, “1 tab PO q6h.”