1. A written formula for the preparation and administration of any remedy.
2. A medicinal preparation compounded according to formulated directions, said to consist of four parts: 1) superscription, consisting of the word recipe, take, or its sign, ℞; 2) inscription, the main part of the prescription, containing the names and amounts of the drugs ordered; 3) subscription, directions for mixing the ingredients and designation of the form (pill, powder, solution, etc.) in which the drug is to be made, usually beginning with the word, misce, mix, or its abbreviation, M.; 4) signature, directions to the patient regarding the dose and times of taking the remedy, preceded by the word signa, designate, or its abbreviation, S. or Sig.

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