Altrenogest solution is widely used in veterinary medicine, particularly in the management of reproductive cycles in female animals, especially swine and horses. It is commonly employed to suppress estrus (heat) in gilts (young female pigs), allowing for synchronized breeding and more efficient herd management. By regulating the estrous cycle, it enables farmers to plan mating and farrowing schedules, improving productivity and operational efficiency. In horses, altrenogest is used to control and suppress estrus behavior in mares, which helps in managing temperament and performance during training or competition. It is also utilized to regulate irregular cycles and assist in the establishment of a predictable reproductive schedule, especially in breeding programs. The solution is typically administered orally or by injection, depending on the species, and is valued for its ability to provide precise control over reproductive timing without long-term negative effects on fertility. Its use supports modern animal husbandry practices by enhancing breeding efficiency and animal management.