Xenon Pharmaceuticals (Pvt) Ltd. originally established in the late 1950’s is one of the oldest Pharmaceutical companies in Pakistan and is amongst the pioneers of the Industry in the country. The company rapidly expanded in the 1990’s under the leadership of CEO Dr. Zulfiqar Ahmad Malik, who bought the company when he shifted back to Pakistan from United States of America, where he was trained as a Medical Doctor and practiced there for almost 2 decades as a Pediatrician.