The present invention comprises the design, synthesis and development of a new class of chemotherapeutic agents for prophylactic and therapeutic treatments in a mammal, particularly a human, believed to be at risk of suffering from a hormone-responsive disorder. In an aspect of the invention, such treatments include therapeutic compositions comprising novel steroidal antiestrogen and antiandrogen compounds. In a preferred aspect, such a novel compound of the present invention has an address and a message component, which are made into a single composite entity for more aggressive intervention and effective treatment of hormone-responsive disorders, thereby prolonging the disease-free interval for the patient and reducing a number of side effects.