(R)-Nicardipine ((R)-YC-93 free base) is the less active R enantiomer of Nicardipine. Nicardipine (YC-93) is a Calcium Channel blocker with an IC50 of 1 μM for blocking cardiac calcium channels. Nicardipine acts as an agent for chronic stable angina and for controlling blood pressure[1].
[1]. Charnet P, et al. Electrophysiological analysis of the action of nifedipine and nicardipine on myocardial fibers. Fundam Clin Pharmacol. 1987;1(6):413-31.
















