The embodiments include methods of ameliorating or preventing the worsening or progression and/or ameliorating or preventing the worsening or lack of improvement of symptoms of BPH in mammals, using compositions containing compounds based on small peptides and a pharmaceutically acceptable carrier. The method includes, but is not limited to, administering the compounds intramuscularly, orally, intravenously, intraprostatically, intrathecally, intratumorally, intranasally, topically, transdermally, etc., either alone or conjugated to a carrier to a mammal in need thereof.