Formulary is a term used to describe a collection of formulas, recipes, or prescriptions. It is commonly used in the medical field to refer to a book of medicines and their dosages. In the pharmaceutical industry, it is used to refer to a list of drugs that are approved for use by a particular health care provider. In the culinary world, it is used to refer to a book of recipes. In the chemical industry, it is used to refer to a book of formulas.