What is "delmadinone"

n. A steroidal progestin whose acylated derivative is used in veterinary medicine.

Delmadinone ( INN) is a steroidal progestin which was never marketed. An acylated derivative, delmadinone acetate, is used in veterinary medicine.

While delmadinone is sometimes used as a synonym for delmadinone acetate, what is usually being referred to is actually delmadinone acetate and not delmadinone.