emopamil [ 2-isopropyl-5(methylphen-ethylamino)-2-phenylvaleronitrile hydrochloride,emopamil, (+)-isomer,emopamil, (+-)-isomer,emopamil, (-)-isomer,levemopamil ] prevents renal injury after warm & cold ischemia; RN given refers to cpd without isomeric designation; structure given in first source