Cilostazol

Phosphodiesterase-3 (PDE-3) Inhibitor
Drug Class
Phosphodiesterase-3 (PDE-3) Inhibitor
Mechanism of Action (MOA)
Inhibits PDE-3 → ↑ cAMP → vasodilation and antiplatelet effect; improves claudication walking distance.
Black Box Warning
Contraindicated in heart failure of any severity — PDE-3 inhibitors decrease survival in patients with HF.
Clinical Notes
Symptomatic relief of intermittent claudication in PAD. Headache, palpitations, diarrhea. Do not use in any degree of heart failure.
Source
FDA label

Sources

Reviewed September 2026
  1. FDA label — FDA / DailyMed

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Used for

Same family

Anticoagulants, antiplatelets & thrombolytics · 8 drugs

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