What does QD BID and TID mean on a prescription?
(qd or QD) is once a day; q.d. stands for "quaque die" (which means, in Latin, once a day). b.i.d. (or bid or BID) is two times a day ; b.i.d. stands for "bis in die" (in Latin, twice a day). q.i.d. (or qid or QID) is four times a day; q.i.d.
List of medical abbreviations: Latin abbreviations
|Abbrev.||Meaning||Latin (or New Latin) origin|
|q.d., qd||every day / daily||quaque die|
|q.h.s., qhs||every night at bedtime||quaque hora somni|
|q.d.s, qds, QDS||4 times a day||quater die sumendum|
|q.i.d, qid||4 times a day||quater in die|
- Medical Definition of OD (lens prescription) OD (lens prescription): Abbreviation of "oculus dexter." Latin for "right eye." (The words "dexterity" and "dextrous" derive from "dexter" since the right hand is usually more skillful than the left.) OS stands for "oculus sinister" which is Latin for left eye.
- ter in die
- OD. 1 abbreviation for oculus dexter, a Latin phrase meaning "right eye." 2 abbreviation for Doctor of Optometry. 3 (informal) abbreviation for overdose.
quater in die
- quater in die
- Terminal Identification Number, also known as a TID or TIN, is a unique number assigned and linked to a specific point-of-sale (POS) terminal or workstation that can be used to identify the merchant operating the terminal during credit card sales transaction processing.
- p.c.: Abbreviation meaning after meals (from the Latin "post cibum", after meals).
“PO” means the medication is taken by mouth “bid” or twice a day. The 'x' indicates this prescription is taken for a period of 5 days. Some people think that Rx means prescription. In a way it does. However, Rx is the abbreviation for the Latin word meaning "recipe."
- A Technician's Guide to Pharmacy Abbreviations
Abbreviation Meaning Notes o.d. right eye Derived from Latin, oculus dexter ODT oral disintegrating tablet oint. ointment o.s. left eye Derived from Latin, oculus sinister
- quater in die
- q.n.s. quantity not sufficient. q.o.d. every other day (from Latin quaque altera die) (deprecated; use "every other day" instead.
Updated: 3rd December 2019