formulary vs prescription

formulary

noun
  • A pharmacopoeia or list of available drugs, particularly prescription drugs 

  • A list of formulas; a collection of set forms to be followed, especially in religious belief. 

  • A list of drugs, created by health insurers, hospitals, or prescription drug plans, that defines how costs for any drug are shared between patient and health care provider, typically broken down by tiers such as preferred generics with lowest copay, or preferred brand with higher copay, or non-preferred brand and not covered tiers with the highest cost to the patient. 

  • An ancient or medieval collection of models for official writings. 

  • A collection of formulas in sciences and mathematics. 

adj
  • Stated; prescribed; ritual. 

prescription

noun
  • The medicine or treatment provided by such an order. 

  • A written order from an authorized medical practitioner for provision of a medicine or other treatment, such as (ophthalmology) the specific lenses needed for a pair of glasses. 

  • An established time period after which a person who has uninterruptedly, peacefully, and publicly used another's property acquires full ownership of it. 

  • Synonym of enactment, the act of establishing a law, regulation, etc., particularly in writing; an instance of this. 

  • An established time period within which a right must be exercised and after which it is null and permanently unenforceable. 

  • The act of establishing or formalizing ideal norms for language use, as opposed to describing the actual norms of such use; an instance of this. 

  • Any plan of treatment or planned treatment. 

adj
  • only available with a physician or nurse practitioner's written prescription 

How often have the words formulary and prescription occurred in a corpus of books? (source: Google Ngram Viewer )