Congestive heart disease. Concurrent therapy with clopidogrel has not been studied for safety or efficacy. Pregnancy and lactation.
Lactation: Excretion in milk unknown; not recommended
Heart failure; known predisposition to bleeding; history of ventricular arrhythmias; QT interval prolongation; severe renal impairment; moderate to severe hepatic impairment.
Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks
Mode of Action
Cilostazol is a reversible, selective inhibitor of phosphodiesterase-III (PDE-III), thereby suppressing cyclic adenosine monophosphate (cAMP) degradation. Increase in cAMP in platelets and blood vessels leads to inhibition of platelet aggregation and vasodilation. Cilostazol also inhibits adenosine uptake into cells, which augments the cAMP-elevating effect of PDE-III inhibition.
Interaction
Co-admin with drugs that affect CYP3A4 (erythromycin, other macrolides, diltiazem) or CYP2C19 (omeprazole) may influence the pharmacokinetics of cilostazol.
Pregnancy Category Note
Pregnancy category: C
Lactation: Excretion in milk unknown; not recommended
Adult Dose
Oral
Peripheral vascular disease
Adult: 100 mg bid.
May reduce dose in patients taking enzyme inhibitors concurrently.
Hepatic Impairment
Moderate to severe: Use caution
Child Dose
N/A
Renal Dose
Renal Impairment
CrCl< 25 mL/min: Use caution
Administration
Should be taken on an empty stomach. Take at least ? hr before or 2 hr after meals.
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