(S)-Verapamil hydrochloride is an inhibitor of leukotriene C4 (LTC4) and calcein transport by MRP1,and leads to the death of potentially resistant tumor cells.
NSC-609249 hydrochloride, an impurity of Verapamil, is a calcium channel blocker with potent orally active properties. It also functions as a first-generation P-glycoprotein (P-gp) inhibitor.
Dexverapamil is the R-enantiomer of the calcium channel blocker verapamil. Dexverapamil competitively inhibits the multidrug resistance efflux pump P-glycoprotein (MDR-1), thereby potentially increasing the effectiveness of a wide range of antineoplastic drugs which are inactivated by MDR-1 mechanisms.
Norverapamil-D7 is a deuterium labeled Norverapamil (T12244). Norverapamil (T12244) is a blocker of L-type calcium channel and an inhibitor of P-glycoprotein (P-gp)function .