IL6 and pulmonary fibrosis: This herbal product was proven to prevent drug-induced pulmonary fibrosis in a mice model by decreasing the plasma levels of inflammatory cytokines, like TNF-α, interleukin citation(IL)-1, and IL-6 (Yeh et al., 2007); these mediators have been implicated in the development of depression (Dowlati et al., 2010).