Previous studies showed CBZ, TPM, and LEVI were not transported by BCRP using accumulation assays, bidirectional transport assays, and using concentration equilibrium transport assay in MDCKII, breast cancer cell line, and mouse embryonic fibroblast cell lines overexpressing BCRP [24, 25, 54], which supports our findings. Here, ABCG2 is linked to breast carcinoma.