Niemann-Pick C1-Like 1 (NPC1L1) is a protein found on the gastrointestinal tract epithelial cells as well as in hepatocytes. Specifically, it appears to bind to a critical mediator of cholesterol absorption.
Ezetimibe, a compound known as a Niemann-Pick C1-like1 (NPC1L1) inhibitor and a potent Nrf2 activator, effectively inhibits cholesterol absorption. Additionally, Ezetimibe ketone (EZM-K) represents a phase-I metabolite of Ezetimibe.