ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.
Overview
It takes 2 to 12 weeks to work.
What it's used for
- Leg pain when walking from peripheral artery disease
How to take it
- Take it twice a day, 30 minutes before or 2 hours after breakfast and dinner.
Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.
Side effects
Common side effects
- Headache
- Diarrhea
- Fast heartbeat
- Dizziness
Call 911Chest pain or a fast, irregular heartbeat
Call your provider todayShortness of breath or swelling (heart failure)
Call your provider todayUnusual bleeding
Warnings
- Boxed warning: never use with heart failure of any severity.
Other medicines, foods, and alcohol
- Diltiazem, omeprazole, some antifungals, and grapefruit juice raise its level.
- Aspirin and blood thinners raise bleeding risk.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
Talk with your provider.
Missed doses, overdose, and storage
If you miss a dose
Take it as soon as you remember, unless it's almost time for your next dose. Then skip the missed dose. Don't take two doses at once.
If someone takes too much
Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.
Storing it
Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.
Conditions it's used for
Sources
- DailyMed: FDA drug label for Cilostazol (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.