Figure 1. HeLa cells were seeded at varying density in a 96-well plate and incubated overnight. The Resazurin solution (10% of cell culture volume) was added to the plate and relative fluorescent units were measured at 0, 1, 2, 4, and 6 hr.
Figure 2. Jurkat cells were seeded at 1x10 5 cells/well in a 96-well plate and then treated overnight with various concentrations of astemizole or terfenadine. Cytotoxicity was measured using the Resazurin Cell Viability Kit (left), followed by BrdU Cell Proliferation Assay Kit #6813 (right).