Benzquinamide (P2647) is an antiemetic which can bind to the α2A, α2B, and α2C adrenergic receptors (α2-AR) with Ki values of 1,365, 691, and 545 nM, respectively. Benzquinamide also inhibits P-glycoprotein mediated drug efflux and potentiates anticancer agent cytotoxicity in multidrug resistant cells.
References:
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[2]. Mazzanti R, et al. Benzquinamide inhibits P-glycoprotein mediated drug efflux and potentiates anticancer agent cytotoxicity in multidrug resistant cells. Oncol Res. 1992;4(8-9):359-65.