The study of manuscripts that related to medicine and pharmacology is of interest to the study of the history of science., it illustrates aspects of the practice of doctors and pharmacists, the status of patients, and the types of drugs
Atorvastatin calcium (ATR) is an antihyperlipidemic agent used for lowering blood cholesterol levels. However, it is very slightly soluble in water with poor oral bioavailability, which interferes with its therapeutic action. It is classified as a class II drug according to Biopharmaceutical Classification System (low solubility and high permeability).