Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a statin stimulus. Statins are organooxygen compounds whose structure is related to compactin (mevastatin) and which may be used as an anticholesteremic drug due its EC:1.1.1.34/EC:1.1.1.88 (hydroxymethylglutaryl-CoA reductase) inhibitory properties. [GOC:hp] [from
GO]