Bafilomycin B1 is a macrolide antibiotic that can be isolated from mycelium of Streptomyces gresuis. Bafilomycin B1 is neuroprotective against Chloroquine -induced death. Bafilomycin B1 is a structural analog of Bafilomycin A1 and has the ability to inhibit V-ATPase. Bafilomycin B1 inhibits significantly the oxidized low density lipoprotein (LDL) -induced accumulation of lipid droplets[1][2][3].