Effect of albendazole treatment on cellular viability. Decreased viability of PC3, DU145, LNCaP, AT2 and RWPE-1 cells following albendazole treatment was confirmed by MTT assay (n=6). In PC3 and DU145 prostate cancer cells, >0.1 μM albendazole decreased viability, while in LNCaP and AT2 cells, >0.5 μM albendazole significantly decreased viability. Decreased viability of RWPE-1, a normal prostate cell line, was observed only at 10 μM albendazole. *P<0.0, **P<0.01 and ***P<0.001 vs. 0 µM albendazole. Results are presented as the mean ± SEM.