what is meant by rx in prescription
â is a symbol meaning prescription. It is sometimes transliterated as R x  or just Rx. This symbol originated in medieval manuscripts as an abbreviation of the Late Latin verb recipe, the imperative form of recipere, to take or take thus.rescription may also be used as a short form for prescription drugs to distinguish from over-the-counter drugs. In reference to the entire system of controlling drug distribution (as opposed to illicit drugs), prescription is often used as a metaphor for healthy directions from a prescribing medical practitioner.