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See also: PX, Px, px, RX, Rx, rx, , , and Appendix:Variations of "r"

U+211E, ℞
PRESCRIPTION TAKE

Letterlike Symbols

U+211F, ℟
RESPONSE

Letterlike Symbols

English

The prescription symbol, ℞, as printed on the blister pack of a prescription drug

Alternative forms

Etymology

An R with a cross-stroke indicating an abbreviation (of recipe, response, retrograde etc). In the case of a prescription, abbreviating Latin recipe (take this, second-person singular imperative of recipiō); it is sometimes typeset as, or even interpreted as, a digraph Rx. Compare also Dx (diagnose, diagnosis) and Hx (history).

Symbol

  1. (medicine, pharmacy, Canada, US, Philippines) Prescription.
  2. (medicine, pharmacy) Take (used to begin a list of ingredients of a compound).
    • 1583, Philip Barrough [i.e., Philip Barrow], “Of Making Bolus”, in The Methode of Phisicke, Conteyning the Causes, Signes, and Cures of Inward Diseases in Mans Body from the Head to the Foote. , London: Thomas Vautroullier , →OCLC, book VI, page 288:
      BOlvs in Engliſh is called a morſell. It is a medicine laxatiue, in forme & faſhion it is meanely whole, & it is ſwallowed by litle gobbets. [] . medulla caſiæ fiſtulæ newly drawen. . j. or ʒ. x. the graines (that is the kernelles) of barbaries. . ß. and with ſugar roſet [sugar compounded with rose petals] make a bole.
  3. (liturgy) Marks the congregation's response to the versicle.
    Synonym: R
  4. (astrology) Retrograde.

Usage notes

The Medieval Unicode Font Initiative recommends that medieval scholars use U+211E for all meanings, medicinal and liturgical.

Coordinate terms

liturgy

See also

abbreviation of words starting with R

Latin

A silver penny of King Offa of Mercia, abbreviating rex as ℞

Noun

  1. (chiefly Medieval Latin) Abbreviation of rex, king.
  2. (chiefly New Latin, pharmacy) Abbreviation of recipe, take (as an imperative).