Gestonorone caproate is primarily used in the field of medicine as a hormonal treatment. It is commonly administered as a long-acting injectable form of progestin, making it effective in managing conditions related to hormonal imbalances. One of its key applications is in the treatment of endometriosis, where it helps reduce the growth of abnormal endometrial tissue outside the uterus, alleviating pain and other symptoms. It is also utilized in controlling abnormal uterine bleeding by regulating the menstrual cycle. Additionally, it has been employed in hormone therapy for certain types of cancer, such as prostate cancer, where it helps suppress the production of testosterone, slowing the progression of the disease. Its long-acting nature ensures sustained therapeutic effects, reducing the frequency of administration.