Amrinone (INN) or inamrinone (USAN changed in 2000 to prevent confusion with amiodarone) trade name Inocor is a pyridine phosphodiesterase 3 inhibitor. It is a drug that may improve the prognosis in patients with congestive heart failure. Amrinone has been shown to increase the contractions initiated in the heart by high gain calcium induced calcium release (CICR).
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