Clinical data | |
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Trade names | Heifermax, MGA |
Other names | MGA; MLA; MLGA; Melengesterol acetate; Methylsuperlutin; U-21240; BDH-1921; 17α-Acetoxy-16-methylene-6-methyl-6-dehydroprogesterone; 17α-Acetoxy-16-methylene-6-methylpregna-4,6-diene-3,20-dione |
Drug class | Progestogen; Progestin; Progestogen ester |
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ECHA InfoCard | 100.018.964 |
Chemical and physical data | |
Formula | C25H32O4 |
Molar mass | 396.527 g·mol−1 |
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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.[4]