Some of the key players in the global testosterone replacement therapy market include names such as Allergan Plc., AbbVie Inc., Bayer AG., Eli Lilly and Company, Endo Pharmaceuticals, Kyowa Kirin International Plc., Novartis AG., Mylan N.V., and Pfizer Inc. among others. The global market for testosterone replacement therapy is a little bit consolidate with the existence of a few big established companies and the presence of some domestic vendors that are playing their trade in the global market. Companies are now focusing on product development and innovation to enhance their market presence. Recently, Pfizer's new drug, Mylotarg, has been approved by the U.S. Food and Drug Administration, for certain patients who suffer from acute myeloid leukemia (AML). More and more companies are inclining towards getting their products sanctioned and get into the market. This will in turn, help in intensifying the competitive market landscape of the global testosterone replacement therapy market over the course of the given forecast period of 2016 to 2024. The top five companies in the global market held over 80% of the total market share in the 2015 out of which AbbVie Inc. has come up on top as the undisputed leader.