(S)-Verapamil (hydrochloride)-d6

(S)-Verapamil-d6 S)-(-)-Verapamil-d6) hydrochloride is the deuterium labeled (S)-Verapamil hydrochloride. (S)-Verapamil hydrochloride (S(-)-Verapamil hydrochloride) inhibits leukotriene C4 (LTC4) and calcein transport by MRP1. (S)-Verapamil hydrochloride leads to the death of potentially resistant tumor cells.