A cocktail preparation of synthetic interleukin (IL) -1, IL-2, IL-6 , tumor necrosis factor (TNF)-alpha, interferon gamma and other cytokines that are chemically identical to or similar to signaling molecules secreted by leukocyte cells. Leukocyte interleukins are essential in many immune responses, such as antibodies production, modulating secretion of other cytokines, and activation of bone marrow stem cells. Check for active clinical trialsusing this agent.