Cilostazol Tablets: 5 Key Facts To Walk Farther Without Pain
Comprehensive guide to cilostazol tablets for treating intermittent claudication and improving leg circulation.
Cilostazol tablets are prescribed to treat intermittent claudication, a condition causing leg pain during walking due to narrowed arteries and poor blood flow in the legs.
This medication improves blood vessel dilation and prevents platelet clumping, allowing patients to walk farther without pain. It is typically used after lifestyle modifications like exercise, diet, and smoking cessation have failed to provide relief.
About cilostazol tablets
Cilostazol is a quinolinone derivative that acts as a phosphodiesterase III inhibitor. It promotes vasodilation in the arteries supplying the legs and inhibits platelet aggregation, enhancing blood flow and reducing claudication symptoms.
Available as tablets (typically 50 mg or 100 mg), cilostazol is taken orally twice daily. Brand names include Pletal and Ekistol. It does not cure the underlying peripheral artery disease (PAD) but controls symptoms effectively in many patients.
Clinical trials show cilostazol increases walking distance: meta-analyses report a 59.4% improvement from baseline compared to 24.3% with placebo, equating to about 87 meters more walking before pain. Full effects may take 2-4 weeks for initial relief and up to 12 weeks for maximum benefit.
Key facts
- Dosage: 100 mg twice daily, taken 30 minutes before or 2 hours after meals.
- Time to work: Symptom improvement in 2-4 weeks; optimal walking distance increase by 12 weeks.
- Brands: Pletal (US), Ekistol (EU).
- Alcohol: Avoid excessive intake as it may increase side effects like dizziness.
- Pregnancy: Not recommended; consult doctor.
How and when to take cilostazol tablets
Take cilostazol exactly as prescribed, usually 100 mg twice a day—at least 30 minutes before or 2 hours after breakfast and dinner. This timing avoids food interference with absorption.
Dosage
Adults: 100 mg orally twice daily. Reduce to 50 mg twice daily if taking CYP3A4 or CYP2C19 inhibitors (e.g., ketoconazole, omeprazole).
Children: Not established.
How to take it
- Swallow tablets whole with water.
- Do not crush or chew.
- If you miss a dose, take it as soon as remembered unless near next dose; do not double up.
- Store at room temperature, away from moisture.
How long to take it for
Continue indefinitely if beneficial, as it controls but does not cure claudication. Reassess after 3 months; discontinue if no improvement. No rebound effect upon stopping.
Common questions
How long does cilostazol take to work?
Improvements often start in 2-4 weeks, with peak benefits at 12 weeks. Patients may walk 40-87 meters farther.
Can you drink alcohol while taking cilostazol?
Limited alcohol is usually fine, but excess may worsen side effects like headache or palpitations.
Is cilostazol safe in pregnancy?
Avoid; category C drug with insufficient safety data.
Can you drive while taking cilostazol?
Yes, unless dizziness occurs; monitor initially.
Can cilostazol affect fertility?
No evidence of impact on fertility.
Will lifestyle changes enhance cilostazol?
Yes; combine with supervised exercise, smoking cessation, and healthy diet for best results.
Side effects of cilostazol tablets
Most side effects are mild and improve over time. Common ones affect over 1 in 100 people.
Common side effects
These usually resolve within weeks:
- Headache: Most frequent; use painkillers if needed.
- Diarrhea: Stay hydrated; eat bland foods.
- Dizziness: Rise slowly; avoid sudden movements.
- Palpitations: Monitor heart rate.
- Abnormal stools: Loose or frequent bowel movements.
Serious side effects
Rare but seek immediate medical help for:
- Fast/irregular heartbeat (tachyarrhythmia).
- Signs of bleeding (bruising, black stools).
- Severe dizziness or fainting.
- Shortness of breath or chest pain.
Cilostazol may lower white blood cells or platelets, increasing infection or bleeding risk. Regular blood tests may be needed.
Who can and cannot take cilostazol tablets
Who can take cilostazol
Suitable for adults with intermittent claudication unresponsive to lifestyle changes.
Who cannot take it
Contraindications:
- Heart failure.
- Recent heart attack, unstable angina, or bypass.
- Severe tachyarrhythmia.
- Bleeding disorders.
- Pregnancy or breastfeeding.
- Age under 18.
Pregnancy and breastfeeding with cilostazol tablets
Avoid during pregnancy due to potential fetal risks. Not recommended while breastfeeding; discuss alternatives with your doctor.
Other medicines, food and drink, and cilostazol tablets
Taking with other medicines
Interactions may occur:
| Drug Class | Examples | Effect |
|---|---|---|
| CYP3A4 inhibitors | Ketoconazole, erythromycin | Reduce dose to 50 mg BID |
| CYP2C19 inhibitors | Omeprazole | Reduce dose |
| Antiplatelets/Anticoagulants | Aspirin, clopidogrel | Increased bleeding risk; avoid dual therapy |
| Statins | Simvastatin | May need dose adjustment |
Inform your doctor of all medications.
Food and drink
Take on empty stomach (30 min before or 2h after meals). Grapefruit juice may increase levels. Limit alcohol.
Common side effects section
(Repeated for emphasis; see above for details.)
Alternatives to cilostazol tablets
- Naftidrofuryl or pentoxifylline: Similar vasodilators; cilostazol often superior.
- Exercise therapy: Supervised walking programs first-line.
- Antiplatelets: Aspirin or clopidogrel for PAD risk reduction.
- Revascularization: Angioplasty or surgery for severe cases.
Frequently Asked Questions (FAQs)
Q: What is intermittent claudication?
A: Leg pain during walking due to PAD-narrowed arteries, relieved by rest.
Q: How effective is cilostazol?
A: Increases walking distance by 40-87m vs placebo; assess after 3 months.
Q: What if I forget a dose?
A: Take ASAP unless near next dose; skip and resume schedule.
Q: Can I stop suddenly?
A: Yes, no rebound; taper if advised.
Q: Does it interact with blood thinners?
A: Yes, heightens bleeding risk; monitor closely.
Lifestyle advice
Enhance cilostazol with:
- Daily walking to pain tolerance.
- Quit smoking immediately.
- Healthy diet low in fats.
- Weight management.
- Foot care to prevent ulcers.
References
- Cilostazol (oral route) – Mayo Clinic — Mayo Clinic. 2023-10-01. https://www.mayoclinic.org/drugs-supplements/cilostazol-oral-route/description/drg-20068236
- Cilostazol: Uses, Side Effects – WebMD — WebMD. 2024-05-15. https://www.webmd.com/drugs/2/drug-16838/cilostazol-oral/details
- Cilostazol-containing medicines – EMA — European Medicines Agency. 2023-11-20. https://www.ema.europa.eu/en/medicines/human/referrals/cilostazol-containing-medicines
- Cilostazol – MedlinePlus — MedlinePlus (NIH). 2024-01-10. https://medlineplus.gov/druginfo/meds/a601038.html
- Cilostazol – StatPearls NCBI — NCBI Bookshelf. 2023-07-17. https://www.ncbi.nlm.nih.gov/books/NBK544363/
- Cilostazol for Intermittent Claudication – AAFP — American Academy of Family Physicians. 2022-04-01. https://www.aafp.org/pubs/afp/issues/2022/0400/p366.html
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