Volpe, Donna A Use of different parameters and equations for calculation of IC₅₀ values in efflux assays: potential sources of variability in IC₅₀ determination. [electronic resource] - The AAPS journal Jan 2014 - 172-80 p. digital Publication Type: Journal Article ISSN: 1550-7416 Standard No.: 10.1208/s12248-013-9554-7 doi Subjects--Topical Terms: AlgorithmsCaco-2 CellsCardiotonic Agents--pharmacologyDigoxin--pharmacologyDrug InteractionsHumansImidazoles--pharmacologyInhibitory Concentration 50Itraconazole--pharmacologyPiperazines--pharmacologySpironolactone--pharmacologySulfones--pharmacologyTriazines--pharmacologyVardenafil Dihydrochloride