bid (on prescription)

bid (on prescription)
Seen on a prescription, bid means twice (two times) a day. It is an abbreviation for "bis in die" which in Latin means twice a day. The abbreviation bid is sometimes written without a period either in lower-case letters as "bid" or in capital letters as "BID" or with periods as "b.i.d." However it is written, it is one of a number of hallowed abbreviations of Latin terms that have been traditionally used in prescriptions to specify the frequency with which medicines should be taken. Other examples include: {{}}q.d. (qd or QD) is once a day; q.d. stands for "quaque die" (which means, in Latin, once a day). t.i.d. (or tid or TID) is three times a day ; t.i.d. stands for "ter in die" (in Latin, 3 times a day). q.i.d. (or qid or QID) is four times a day; q.i.d. stands for "quater in die" (in Latin, 4 times a day). q_h: If a medicine is to be taken every so-many hours, it is written "q_h"; the "q" standing for "quaque" and the "h" indicating the number of hours. So, for example, "2 caps q4h" means "Take 2 capsules every 4 hours."

Medical dictionary. 2011.

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  • bis in die (on prescription) — Seen on a prescription, bid means twice (two times) a day. It is an abbreviation for bis in die which in Latin means twice a day. The abbreviation bid is sometimes written without a period either in lower case letters as bid or in capital letters …   Medical dictionary

  • b.i.d. (on prescription) — Seen on a prescription, b.i.d. means twice (two times) a day. It is an abbreviation for bis in die which in Latin means twice a day. The abbreviation b.i.d. is sometimes written without a period either in lower case letters as bid or in capital… …   Medical dictionary

  • q.d. (on prescription) — Seen on a prescription, q.d. (or qd) means one a day (from the Latin quaque die). The abbreviation is sometimes written without a period in capital letters as QD . However it is written, it is one of a number of hallowed abbreviations of Latin… …   Medical dictionary

  • q.h. (on prescription) — Abbreviation for "every hour." On a prescription or doctor s hospital orders, q.h. means every hour. Also written qh (without the periods). From the Latin quaque meaning once + h for hour. However it is written, it is one of a number of …   Medical dictionary

  • q.i.d. (on prescription) — Seen on a prescription, q.i.d. (or qid) means 4 times a day (from the Latin quater in die). The abbreviation q.i.d. is also sometimes written without a period in capital letters as “QID”. However it is written, it is one of a number of hallowed… …   Medical dictionary

  • qd (on prescription) — Seen on a prescription, qd (or, written with periods, q.d.) means one a day (from the Latin quaque die). The abbreviation is sometimes written without a period in capital letters as QD . However it is written, it is one of a number of hallowed… …   Medical dictionary

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