Maraviroc
Maraviroc is a chemokine co-receptor 5 (CCR5) antagonist, the first of a new class of agents active against the human immunodeficiency virus (HIV) and the acquired immunodeficiency syndrome (AIDS). Maraviroc was approved for use in the United States in 2007 but has had limited use. Maraviroc has been associated with elevations in serum aminotransferase levels and to several cases of acute, clinically apparent liver injury.