1a collection of set forms, especially for use in religious ceremonies.
2an official list giving details of prescribable medicines.
relating to or using officially prescribed formulas.
mid 16th century: the noun from French formulaire or medieval Latin formularius (liber) '(book) of formulae', from Latin formula(see formula); the adjective (early 18th century) is directly from formula
formulary in other Oxford dictionaries
Definition of formulary in the US English dictionary