CORVERT Injection (ibutilide fumarate injection) is an antiarrhythmic drug with predominantly class III (cardiac action potential prolongation) properties according to the Vaughan Williams Classification. Each milliliter of CORVERT Injection contains 0.1 mg of ibutilide fumarate (equivalent to 0.087 mg ibutilide free base), 0.189 mg sodium acetate trihydrate, 8.90 mg sodium chloride, hydrochloric acid to adjust pH to approximately 4.6, and Water for Injection.

CORVERT (ibutilide fumarate injection) Injection is an isotonic, clear, colorless, sterile aqueous solution. Ibutilide fumarate has one chiral center, and exists as a racemate of the (+) and (-) enantiomers.

The chemical name for ibutilide fumarate is Methanesulfonamide, N-{4-{4-(ethylheptylamino)-1-hydroxybutyl}phenyl}, (+) (-), (E)-2-butenedioate (1:0.5) (hemifumarate salt). Its molecular formula is C₂₂H₃₈N₂O₅S, and its molecular weight is 442.62.

Ibutilide fumarate is a white to off-white powder with an aqueous solubility of over 100 mg/mL at pH 7 or lower.

The structural formula is represented below:

Last reviewed on RxList: 6/25/2008
This monograph has been modified to include the generic and brand name in many instances.