Pharmacy is the science and art of producing medicines from natural and synthetic materials that are suitable and convenient for distribution and use in the prevention and treatment of disease. This profession encompasses knowledge of the identification, selection, preservation, combination, pharmacological action, analysis, and standardization of drugs and medicinal ingredients, as well as the proper and safe distribution, storage, and use of drugs. In other words, those working in the pharmaceutical field are drug experts with a thorough understanding of all aspects of the science and knowledge of drugs.