ExpressPlus P-gp Inhibition Assessment in MDR1-MDCK Cells

This MDR assay is used to screen for inhibition of P-gp by a test compound, by measuring its effect on the bidirectional permeability of a P-gp substrate through MDR1-MDCK cell monolayers

Catalog number EA258

Required from Customer



Assay System

Assay Conditions

Assay QC


  1. The results from this assay are provided to the customer in the ExpressPlus report format, which may include graphical representations of data and comparison with historical data for reference compounds.
  2. The solubility of the test compound in Hanks’ buffer containing < 0.8% DMSO must be greater than the test concentration. If the solubility of the test compound is unavailable, Absorption Systems can conduct a solubility assessment at an additional charge.


  1. The customer can request: