Dzherelo is an extract from several plants grown in Ukraine that have been used safely as food or for medicinal purposes for several centuries. Phase II clinical trial was conducted in 40 TB/HIV co-infected patients to evaluate the effect of oral immunomodulator Dzherelo (Immunoxel) on immune and viral parameters. The study concluded that Dzherelo has a favorable effect on the immune status and viral burden in TB/HIV patients and it can be useful as an immune adjuvant for therapy of AIDS and tuberculosis -- two leading infectious diseases of global importance. Being derived from botanical sources and with established record of safety since its approval by the Ministry of Health of Ukraine in 1997, Dzherelo has been used by an estimated 500,000 people so far.