Probably non-CYP dependent metabolism. No data pointing to CYP-interaction.

Bipyridin.

Non-catecholamine, non-glucoside inotropic drug used in acute heart failure.

Amrinone (synonym inamrinone) is partially metabolised in the liver and excreted in the urine as unchanged drug and metabolites (N-glycolyl, N-acetate, O-glucuronide, N-glucuronide); up to about 40% is excreted as unchanged drug after intravenous administration. The major metabolic pathways of inamrinone are all conjugative, which involve glucuronidation, glutathione addition, and acetylation. If at all, the CYP450-system probably does not play a significant role.

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