Farnesol is a sesquiterpene alcohol that modulates cell-to-cell communication in Candida albicans . It is also shown that this molecule presents inhibitory effects against non-albicans Candida species , Paracoccidioides brasiliensis and bacteria. The minimum inhibitory concentrations (MICs) are determined in accordance with the M27-A3 protocol as described and Farnesol is tested at a concentration range of 0.29-150 μM. It is observed that Farnesol presents an inhibitory activity against C. neoformans and C. gattii (MIC range: 0.29-75.0 μM). Although Farnesol does not significantly alter phospholipase activity, a tendency to decrease this activity is observed.