Laniquidar

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** A stereoisomer of verapamil and third-generation P-glycoprotein inhibitor. Laniquidar inhibits the drug efflux pump P-glycoprotein, resulting in higher concentrations of antineoplastic agents in tumor cells that are multi-drug resistant due to the overexpression of P-glycoprotein. (NCI04)

**Synonyms:** - LANIQUIDAR - R101933 - R101933