Pletal (Cilostazol) — Patient Information (UK)

Pletal contains cilostazol, a medicine used to improve symptoms caused by reduced blood flow to the legs, most commonly in people with intermittent claudication. This page explains what Pletal is, how it works, how it’s taken, important safety information, and what to consider alongside other medicines and alcohol.

1. Basic product information

If you would like, you can also check the exact strength and instructions on the pack you receive, as formulations can differ.

2. What is intermittent claudication?

Intermittent claudication is leg pain (often cramping, aching, or tightness) that happens when you walk and improves with rest. It usually results from peripheral arterial disease (PAD), where arteries supplying the legs narrow due to fatty deposits.

Pletal is intended to help you walk further and improve function alongside lifestyle measures such as exercise and smoking cessation.

3. How Pletal works (mechanism of action)

Cilostazol belongs to a class of medicines known as phosphodiesterase (PDE) inhibitors. Its main actions include:

• Inhibiting platelet aggregation (helping blood cells called platelets less likely to clump)
• Promoting blood vessel relaxation (vasodilation), improving blood flow to tissues
• Increasing cyclic AMP levels inside cells, which contributes to the anti-platelet and vasodilating effects

In simple terms, cilostazol helps reduce “stickiness” of platelets and supports more flexible blood vessels, which can improve the supply of oxygen to working muscles during walking.

4. Pharmacokinetics (how the body handles cilostazol)

Understanding pharmacokinetics can help explain timing and interactions. Key points include:

• Absorption: Cilostazol is absorbed after oral dosing. Taking it consistently helps maintain steady levels.
• Distribution: It distributes throughout the body and is present in the bloodstream.
• Metabolism: Cilostazol is mainly metabolised in the liver. Enzymes involved include CYP3A4 and CYP2C19.
• Active metabolites: Several metabolites contribute to overall activity.
• Elimination: Metabolites are eliminated mainly via the kidneys and through bile pathways.
• Half-life (approximate): The effective duration supports a twice-daily regimen for many patients. Actual half-life can vary depending on other medicines and liver function.

Because metabolism involves liver enzymes, certain medicines that affect CYP3A4 or CYP2C19 may change cilostazol levels.

5. Typical use and expected benefits

Indications (what Pletal is for)

In the UK, cilostazol is used to treat intermittent claudication due to peripheral arterial disease. It is intended for people who experience walking-limiting leg symptoms and want to improve walking distance.

How long it takes to work

Many people notice improvements gradually. However, it’s important to understand typical expectations:

• Early changes: Some improvement may be noticed over the first few weeks.
• Assess response: If it’s not helping after a period of treatment, your clinician may reassess whether to continue.
• Best results: Regular walking exercise programmes can work alongside Pletal to support improved function.

Timing and missed doses

Cilostazol is commonly taken twice daily. Try to space your doses evenly across the day.

• Example schedule: Morning and evening (e.g., around breakfast and dinner, or as advised on your pack).
• If you miss a dose: Take it when you remember unless it’s close to the next dose. Do not double up.
• If you stop suddenly: Symptoms may return to baseline over time.

6. Dosing (UK patient guidance)

The exact dose should follow the instructions on your pack or professional advice. Below is general information commonly used for cilostazol in intermittent claudication.

Typical adult dosing (general)

• Common dose: 100 mg twice daily
• Maximum daily dose: Often guided by the same twice-daily regimen; your prescriber may tailor this.

Cilostazol is not usually recommended in certain situations (see safety and contraindications below), and dose decisions may be influenced by: other medicines, liver function, and your individual bleeding risk.

Special considerations

• Older adults: Dose adjustments may be needed depending on kidney/liver function and interacting medicines.
• Kidney impairment: Your clinician will consider kidney function when deciding suitability.
• Liver impairment: Cilostazol may be avoided or used with caution in significant liver disease.

7. Food interactions and taking with meals

Food can affect how medicines are absorbed. With cilostazol, it’s helpful to be consistent.

• General advice: Take your doses as directed on the pack. If you notice stomach upset, taking with food may help.
• High-fat meals: May influence absorption timing for some medicines. Consistency is often more important than a “perfect” timing.
• Grapefruit: Some medicines are affected by grapefruit (due to CYP3A4 inhibition). If you are taking other medications and have been advised to avoid grapefruit, follow that advice.

For tailored guidance, refer to your specific label instructions and your healthcare professional.

8. Alcohol interactions

Moderate alcohol intake may not directly “cancel” cilostazol’s effect, but alcohol can increase the risk of side effects for some people—particularly those affecting the gut or causing dizziness.

• Bleeding risk: Cilostazol has an anti-platelet effect, and heavy alcohol consumption can increase bleeding risk.
• Dizziness/headache: Both alcohol and cilostazol can contribute to dizziness or headache in some people.
• Safety tip: If you choose to drink, do so in moderation and monitor how you feel.

Seek medical advice if you have a history of bleeding problems, peptic ulcer disease, or if you drink heavily.

9. Medicine interactions (important)

Because cilostazol affects platelets and is metabolised by liver enzymes, interactions may be clinically important. Always review your full list of medicines—including over-the-counter products and herbal remedies—before starting.

Medicines that may increase bleeding risk

• Other antiplatelets (e.g., aspirin, clopidogrel) or anticoagulants (e.g., warfarin, apixaban, rivaroxaban)
• Non-steroidal anti-inflammatory drugs (NSAIDs) (e.g., ibuprofen, naproxen) can increase GI bleeding risk in some people
• Certain antidepressants (SSRIs/SNRIs) may increase bleeding risk by affecting platelet function

Combining medicines that increase bleeding risk may not always be unsafe, but it may require closer monitoring and careful benefit–risk assessment.

Medicines that affect cilostazol metabolism (CYP enzymes)

Cilostazol is metabolised largely through CYP3A4 and CYP2C19. Medicines that strongly inhibit or induce these pathways can alter cilostazol levels.

• Strong CYP3A4 inhibitors may increase cilostazol exposure and side effects. Examples (not exhaustive) can include certain antifungals or some antibiotics.
• CYP2C19 inhibitors may also increase exposure. Examples can include some proton pump inhibitors and other agents.
• Strong CYP inducers may reduce cilostazol effectiveness.

Your pharmacist can help check for interactions based on your specific medicine list.

Practical advice to reduce interaction problems

• Keep an up-to-date list of all medicines and supplements.
• Tell your clinician/pharmacist about recent changes.
• Do not start new OTC products (including “blood thinning” supplements) without checking.

10. Safety profile and side effects

Common side effects

Like all medicines, Pletal can cause side effects. Commonly reported effects include:

• Headache
• Dizziness
• Palpitations (awareness of heartbeat)
• Gastrointestinal upset (e.g., diarrhoea, nausea)
• Flushing or feeling warm

Serious side effects — get urgent medical help

Stop and seek urgent medical advice if you notice signs of a serious problem, such as:

• Bleeding that is severe or unusual (e.g., coughing/vomiting blood, black tarry stools, blood in urine, unusual bruising)
• Allergic reaction (swelling of face/lips, rash with breathing difficulty)
• Chest pain, fainting, or severe shortness of breath
• Severe persistent diarrhoea or signs of dehydration

Contraindications and when to avoid cilostazol

There are situations where cilostazol is generally avoided or requires specialist review. You should discuss suitability if you have:

• Heart failure or certain severe heart conditions
• Significant bleeding disorders or a high bleeding risk
• Severe liver impairment (specialist advice is needed)
• Known hypersensitivity to cilostazol

If any of the above apply, don’t start Pletal without checking with a qualified healthcare professional.

11. Practical use tips

The way you take Pletal can influence tolerability and consistency of effect.

• Take it at regular times: A morning/evening schedule helps maintain steadier levels.
• Stay hydrated: If you experience diarrhoea or dizziness, fluids may help.
• Track your walking: Many people find it helpful to record the distance or time they can walk before symptoms occur. This can help assess benefit.
• Exercise therapy matters: Supervised or structured walking programmes can improve PAD outcomes and complement medication.
• Watch for bleeding: If you notice easy bruising, nosebleeds, or unusual bleeding, contact your healthcare team promptly.

If side effects are bothersome, your clinician may adjust timing or review the overall treatment plan.

12. Alternative options for intermittent claudication (UK context)

Management of intermittent claudication is individual and usually includes lifestyle measures and treatment of cardiovascular risk factors. Alternatives may include medication choices and non-drug strategies.

Non-medicine options

• Supervised exercise therapy (often the most effective first-line approach)
• Smoking cessation and weight management
• Foot care and managing comorbidities (e.g., diabetes)
• Vascular referral if symptoms are severe (for possible revascularisation procedures)

Other medicine options (discuss with a clinician)

• Antiplatelet therapy (e.g., aspirin or clopidogrel) to reduce cardiovascular risk in PAD
• Statins and other lipid-lowering treatment to manage atherosclerosis
• Blood pressure medicines for cardiovascular risk control

Note: Different medicines have different purposes—some aim to improve walking distance, while others focus on reducing heart attack and stroke risk. Cilostazol’s unique role is symptom improvement in intermittent claudication for suitable patients.

13. Delivery, availability, and market/legal context (United Kingdom)

Pletal (cilostazol) is an established medicine used in the UK for intermittent claudication in selected patients. Availability may vary by pharmacy supplier and stock levels.

In the UK, medicines supply is regulated. Pharmacy orders must follow relevant legal requirements, and products must be supplied in accordance with the packaging and labelling provided by the manufacturer. If availability changes, your pharmacy can inform you of alternatives or options for ensuring continuity of treatment.

Delivery expectations (typical online pharmacy)

• Processing time: Orders are usually processed on working days.
• Delivery times: Delivery times can depend on courier routes and stock availability.
• Tracking: Many services offer dispatch updates or tracking information.
• Temperature: Follow any packaging instructions; most tablet medicines do not require special temperature control.

If you have an urgent need or are switching from another supply, contact customer support so they can advise on the soonest delivery option.

14. Recent guidance and clinical considerations

Clinical practice for PAD and intermittent claudication emphasises:

• Cardiovascular risk reduction (e.g., statins, antiplatelets where appropriate, blood pressure control)
• Exercise-based therapy as a cornerstone
• Symptom-directed medicines for suitable patients, with periodic review of benefit
• Monitoring for side effects, especially where patients take other medicines that affect bleeding risk

Local NHS services and specialist vascular clinics may have specific pathways. Always follow advice from your healthcare team for your personal circumstances.

15. FAQ

Is Pletal the same as blood thinner medicines?

Cilostazol helps reduce platelet aggregation (it is “anti-platelet”), which can increase bleeding tendency. However, it is not the same as anticoagulants (“blood thinners”) such as warfarin or apixaban. If you take any medicines affecting clotting, speak to a clinician/pharmacist to confirm your specific risk.

What should I do if I get side effects like headache or dizziness?

Many side effects lessen as your body adjusts. Stay hydrated and avoid sudden standing if you feel dizzy. If side effects are persistent, severe, or you feel faint, contact a healthcare professional promptly.

Can I take Pletal with other medicines for circulation?

Some combinations may be appropriate, but others can raise bleeding risk or alter cilostazol levels. Always check with your pharmacist, particularly if you use antiplatelets, anticoagulants, or NSAIDs regularly.

Can I drink alcohol while taking Pletal?

Small amounts may be tolerated by some people, but alcohol can worsen dizziness and may increase bleeding risk, especially with heavy drinking. If you’re concerned, ask your healthcare professional for guidance suited to you.

Will Pletal cure my peripheral artery disease?

Pletal does not cure PAD. It is designed to improve symptoms (walking distance and comfort) in intermittent claudication. Long-term management typically includes risk reduction (statins, antiplatelets where appropriate), exercise, and addressing lifestyle factors.

When should I expect improvement in walking distance?

Improvement often develops gradually. A clinician may review your response after a period of treatment. If there is no benefit, your treatment plan may be reconsidered.

What if I have kidney or liver problems?

Suitability depends on severity. Cilostazol is metabolised in the liver and interacts with kidney and liver function in practical ways. Your healthcare team should assess whether it’s appropriate and may recommend extra monitoring.

Can I stop Pletal if I feel better?

Do not stop suddenly unless advised. Symptoms may return as the body’s underlying blood flow issues persist. Discuss any planned changes with a healthcare professional.

How should Pletal tablets be stored?

Keep tablets in their original packaging and store them according to the label instructions (typically at room temperature away from moisture and excessive heat). Keep out of sight and reach of children.

This information is intended to help you understand Pletal (cilostazol) in a clear and practical way. For advice tailored to you—especially regarding interactions with your current medicines—please speak to a qualified healthcare professional or pharmacist.