Fluvastatin sodium, is a water-soluble cholesterol lowering agent which acts through the inhibition of 3-hydroxy-3- methylglutaryl-coenzyme A (HMG-CoA) reductase.

Fluvastatin sodium is [ R *, S *-( E )]-(±)-7-[3-(4-fluorophenyl)-1-(1-methylethyl)-1 H -indol-2-yl]-3, 5-dihydroxy-6-heptenoic acid, monosodium salt. The empirical formula of fluvastatin sodium is C24H25FNO4 ·Na, its molecular weight is 433.46.

This molecular entity is the first entirely synthetic HMG-CoA reductase inhibitor, and is in part structurally distinct from the fungal derivatives of this therapeutic class.
Fluvastatin sodium is a white to pale yellow, hygroscopic powder soluble in water, ethanol and methanol.