👉 Pleon, also known as pleonase or pleonasea, is a term used in pharmacology to describe the process by which new drugs are synthesized from existing ones. It refers to the synthesis of drug molecules through chemical reactions that involve the incorporation of amino acids and other organic compounds into the molecule's structure. In simpler terms, pleon, like pleonase, involves the rearrangement or modification of amino acids within a protein structure. However, unlike pleonase, which