Melengestrol acetate (MLGA), sold under the brand names Heifermax and MGA among others, is a progestin medication which is used in animal reproduction.[1][2] It is not approved for use in humans, and is instead used as an implantable contraceptive for captive animals in zoos and other refuges,[3] and is also used as a feed additive to promote growth in cattle, a purpose it is licensed for in the United States and Canada. Uses Animal reproduction MLGA is used in animal reproduction.…
