Scientists from the Eastern countries have a great merit for the enrichment of the range of medicaments, as well as for the scientific development of pharmacology. In this respect, worth of special interest is a manuscript source, dealing with the medicaments of the XIV century and entitled: "Selected Pharmacopeia, dedicated to Badia al Jemal"--Ihtiyarat of Badia, written by Ali Bin Hussein al Ansari, usually known by his nickname Hodja Zayn al Atar. Most of the concepts, found in the cited manuscript, conserve their significance up to the present day, all the more that the drugs listed, their indications, way of preparation and application are thoroughly described. The Ihtiyarat of Badia, containing the description of 1100 drug denominations of vegetable, animal and mineral origin, is not merely a historical document of medieval pharmacology, but might serve as a source for enriching the armamentarium of modern medicine with drugs.