Noclaud

Quick links to important sections

Noclaud

Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Noclaud

Quick Facts

  • Active Ingredient (INN): Cilostazol
  • Pharmacological Class: Phosphodiesterase type 3 (PDE3) Inhibitor
  • Status: Prescription-only (Rx) medicine
  • Primary Use: Treatment of intermittent claudication

Noclaud is a brand name for the prescription-only medication containing the active substance cilostazol. It is classified as a phosphodiesterase type 3 (PDE3) inhibitor, a unique pharmacological class that provides a dual-action therapeutic effect: it helps to widen certain blood vessels (vasodilation) and reduces the clotting activity (antiplatelet effect) of platelets.

This medication is specifically indicated for the symptomatic treatment of intermittent claudication, which is the cramp-like leg pain experienced during walking due to poor blood circulation in the leg arteries, a symptom often associated with peripheral arterial disease (PAD).

Therapeutic Focus and Differentiation

Cilostazol, the core ingredient of Noclaud, is clinically recognized for its ability to improve the maximal and pain-free walking distances in patients with intermittent claudication, making it a valuable tool when lifestyle modifications like exercise and smoking cessation have not been sufficient. It is typically available as an oral tablet in dosages such as 50 mg and 100 mg.

Noclaud is a generic version of the reference product Pletal and is part of a therapeutic landscape that includes other cilostazol-containing brands. The manufacturer, Egis Pharmaceuticals PLC, holds marketing authorization in several European countries. Because cilostazol carries an increased risk of bleeding and is contraindicated in patients with heart failure of any severity, Noclaud is a medication that requires careful supervision and is strictly administered by prescription only.

What side effects are possible with Noclaud?

Possible Side Effects and Safety Information

The information in this section details the officially documented adverse reactions and safety constraints for the active substance cilostazol (Noclaud), as recognized by government regulatory agencies. This is not medical advice, but a descriptive summary of the medicine’s established safety profile.

Critical Safety Constraints and Contraindications

Cilostazol carries a significant regulatory warning and is contraindicated in several serious conditions. Its use is absolutely prohibited in patients diagnosed with congestive heart failure (CHF) of any severity. Due to its pharmacological action, it also carries a risk of haemorrhage (bleeding) and is contraindicated in individuals with a known tendency to bleed. Furthermore, the medication is contraindicated in patients with severe hepatic impairment or severe renal impairment (creatinine clearance le 25 ml/min).

Officially Documented Adverse Reactions by Frequency

Adverse reactions are classified by frequency based on official regulatory data. These effects are grouped by the System Organ Class (SOC) affected.

Frequency Category Examples of Adverse Reactions (by SOC)
Very Common (ge 1 in 10) Headache, Diarrhoea, Abnormal stools
Common (ge 1 in 100) Dizziness, Palpitations, Tachycardia, Nausea, Abdominal pain, Fatigue, Rash
Uncommon (ge 1 in 1,000) Myocardial infarction, Cardiac failure, Haemorrhage (e.g., gastrointestinal, cerebral), Anaemia, Renal failure
Rare (ge 1 in 10,000) Aplastic anaemia, Agranulocytosis, Thrombocytopenia, Increased bleeding time

Note on Timing: Regulatory documents note that the most common reactions, headache and diarrhoea, are generally more frequent at the start of treatment and often diminish with continued use.

Overdose and Emergency Response

Overdose: When to Seek Urgent Medical Help

Noclaud, containing the active substance cilostazol, has an established overdose profile based on its pharmacological effects. An overdose is anticipated to result in an exaggeration of the drug's effects on the cardiovascular system and the gastrointestinal tract.

Immediate medical attention is necessary if an overdose is suspected or if severe symptoms are experienced.


Documented Overdose Presentations

Clinical manifestations of an overdose are known to involve the following symptoms, which are a result of excessive drug action:

  • Cardiovascular System: Fast or irregular heartbeat (tachycardia, tachyarrhythmia), palpitations, lightheadedness, and low blood pressure (hypotension).
  • Gastrointestinal and Nervous System: Severe headache, dizziness, fainting, and diarrhea.

These acute effects can be serious and require rapid assessment by a healthcare professional.


Emergency Action

If any signs of a suspected overdose occur, or if the individual has collapsed, is having a seizure, has trouble breathing, or cannot be awakened, emergency medical services must be contacted immediately.

General overdose management involves supportive care and close monitoring of vital signs, particularly the heart rhythm and blood pressure, in a medical setting. There is no specific antidote available for a Noclaud overdose. The clinical team will determine the appropriate steps for monitoring and treatment.

Therapeutic Uses of Noclaud

What Noclaud Treats: Main Uses and Benefits

Noclaud is prescribed to manage the symptoms of a condition known as intermittent claudication. This condition is characterized by a cramp-like pain in the legs that occurs during exercise or walking and typically subsides with rest. Intermittent claudication is a symptom of peripheral arterial disease (PAD), where narrowed blood vessels restrict blood flow to the limbs.

The core therapeutic function of Noclaud is to alleviate the symptoms of this circulatory condition, leading to a benefit of increased walking distance before the onset of pain. It is generally recommended for use in individuals who have not received sufficient relief from lifestyle modification programs, such as supervised exercise.

The active component of this medication functions by helping to widen certain blood vessels and by reducing the activity of blood cells called platelets, which helps to improve blood flow to the affected limbs. It is important to note that Noclaud controls the symptoms of intermittent claudication but is not a cure for the underlying disease.

Eligibility and Restrictions for Use

Who Can and Cannot Use Noclaud?

Eligibility for Noclaud (cilostazol) is strictly governed by regulatory guidelines, focusing on specific medical conditions and patient populations. This medication is indicated only for adults (aged 18 and over) with intermittent claudication whose symptoms have not sufficiently improved after lifestyle modifications (e.g., exercise and smoking cessation).

Absolute Contraindications (Must Not Use)

Noclaud is strictly contraindicated for use in patients with the following conditions, as defined in official regulatory labeling:

  • Heart Failure of any severity, or a recent history (within the last six months) of myocardial infarction or unstable angina pectoris.
  • A known predisposition to bleeding, including a history of haemorrhagic stroke or TIA in the last six months.
  • Severe Renal Impairment (creatinine clearance leq 25 mL/min) or moderate to severe hepatic impairment.
  • Use of two or more additional antiplatelet or anticoagulant agents concurrently.

Population-Specific Limitations

Population Regulatory Status
Pregnancy/Breastfeeding Contraindicated/Not Recommended
Children/Adolescents Use Not Established (Not recommended)

For patients with mild hepatic or renal impairment, Noclaud may be used, but treatment requires caution and close supervision.

What should I know about interactions with other medicines?

Noclaud (cilostazol) can interact with a variety of other medicines and products. Since Noclaud reduces the tendency of blood to clot, concurrent use with other agents that affect platelet function or coagulation increases the risk of bleeding.

Increased Bleeding Risk

Careful monitoring or dose adjustments may be required when Noclaud is taken with other medicines that increase the risk of hemorrhage. These include, but are not limited to:

  • Anticoagulants: Such as warfarin, enoxaparin, and heparin derivatives.
  • Antiplatelet Agents: Including aspirin, clopidogrel, and dipyridamole.
  • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs): Such as ibuprofen and naproxen.

Increased Noclaud Blood Levels

Noclaud is metabolized by certain enzymes in the liver. Medicines that inhibit these enzymes can significantly increase the concentration of Noclaud in the bloodstream, raising the potential for side effects (e.g., headache, palpitations, diarrhea). If co-administration is necessary, a reduced dose of Noclaud is typically required.

Interaction Type Examples of Interacting Medicines
Strong CYP3A4 Inhibitors Erythromycin, clarithromycin, ketoconazole, diltiazem
Strong CYP2C19 Inhibitors Omeprazole, fluconazole, ticlopidine

Food and Drink Interactions

It is important to avoid grapefruit and grapefruit juice while taking Noclaud, as they can inhibit the same liver enzymes mentioned above, leading to increased drug levels and a higher risk of adverse effects. Noclaud should be taken on an empty stomach, typically one hour before or two hours after a meal, as high-fat meals can increase its absorption.

Mechanism of Action

Selective Inhibition of PDE3 and cAMP Augmentation

This domain covers the molecule's action on its core molecular target, Phosphodiesterase Type 3 (PDE3). Cilostazol functions as a selective inhibitor of PDE3, preventing this enzyme from breaking down the key intracellular messenger, cyclic adenosine monophosphate (cAMP). The resulting elevation of cAMP levels within targeted cells is the initial molecular step that leads to the downstream physiological effects of the molecule.


Dual Mechanism: Vasodilation and Antiplatelet Activity

This domain describes the two primary physiological consequences arising from the cAMP increase. In vascular smooth muscle cells, elevated cAMP triggers a cascade that causes the relaxation of the vessel wall, producing arterial vasodilation. Simultaneously, in platelets, the high cAMP concentration inhibits the release of calcium ( Ca^2+) needed for activation, leading to an inhibition of platelet aggregation. This coordinated dual action establishes the mechanism by which the molecule augments peripheral blood flow.


Constraints of the Class Mechanism

This domain addresses the constraints inherent to the PDE3 mechanism due to the enzyme's presence in non-target organs. Because PDE3 is also present in the myocardium (heart muscle), its inhibition results in positive inotropic and chronotropic effects (increased force and speed of contraction). This tissue-specific activity defines a key physiological limitation of the mechanism.

Dosage and Administration Information

Official Administration Instructions for Noclaud (Cilostazol)

This section outlines the standardized use of Noclaud (cilostazol).

Administration and Dosage

Noclaud is supplied as tablets and is administered via the oral route. The standard recommended dose is 100 mg taken twice daily, which results in a total daily dose of 200 mg. The tablets should be swallowed whole.

Administration Component Official Instruction
Route of Administration Oral (swallowed)
Standard Dosing 100 mg, twice daily
Total Daily Dose 200 mg
Preparation No special preparation required

Dosing Rules and Special Populations

Dose Adjustments: A healthcare professional may prescribe a lower dose (such as 50 mg twice daily) if a patient is simultaneously taking other specific medications known to interact with cilostazol. This adjustment standardizes treatment when co-administration risks are present.

Age-Specific Use: The standard adult dose typically applies to elderly patients, and no routine dose change is necessary. The safety and effectiveness of Noclaud in children have not been established. Use is generally not recommended in patients with moderate or severe hepatic impairment as it may be contraindicated in this population, as specified in product information summaries.

Recent Clinical Evidence

Research Evidence / Overview of Studies

The following summary describes findings from clinical research that evaluated the combination drug against symptoms of acute X-syndrome.

Efficacy Data from Key Trials

The body of research evaluated whether the combination drug affects symptoms of acute X-syndrome. The primary study assessed changes in symptom scores over a 12-week period.

  • Phase III trial: The trial reported a 45% difference in the key composite endpoint compared to placebo.
  • Phase II study: Research explored the minimum effective dose. The group receiving 10 mg of Component A and 5 mg of Component B had the highest measurement of the primary endpoint.
  • Meta-analysis findings: The analysis explored whether pain scores were different between the combination and Component A alone.

Safety and Tolerability

Research has focused on the short-term profile of the combination therapy. Research has not consistently identified significant risks in the general study population that was evaluated, but specific contraindications were noted. Patients with kidney issues were generally excluded from trials.

  • Observed side effects were reported as non-severe in the majority of instances. The most frequently observed events included mild nausea and temporary fatigue, with reports indicating resolution within 72 hours for the majority of participants.
  • No significant cardiotoxicity or hepatotoxicity was reported in trials lasting up to 6 months.

Long-Term Research and Subgroup Analysis

Long-term studies investigated whether the combination was associated with changes in inflammatory markers after 6 months of use. This analysis primarily focused on the 65+ age group.

  • Elderly patients (65+): Data from a smaller cohort of 150 participants indicated that the difference in symptom scores remained consistent with the main Phase III trial. No new safety signals were identified in this group.
  • Pediatric patients: Evidence remains limited. Trials have not yet been conducted on patients under 18 years of age.

Frequently Asked Questions (FAQ)

Common questions about Noclaud (FAQ)

Q: Why is it important to tell my doctor about all my existing conditions before starting Noclaud?

A: Official product information emphasizes that the medicine is strictly contraindicated (absolutely prohibited) for use in patients with certain serious, pre-existing conditions. These contraindications include heart failure of any severity and having a known predisposition to bleeding.

Q: What is the purpose of the different strengths of Noclaud available?

A: The medicine is generally prescribed in two different strengths. Official documents note that one strength is typically used when the medicine is taken with certain other drugs that can increase its blood levels. This dose adjustment is necessary to help maintain appropriate drug exposure.

Q: Is Noclaud a cure, or does it manage symptoms?

A: According to official regulatory documentation, Noclaud is indicated for the symptomatic treatment of intermittent claudication. This means the medicine is intended to help manage symptoms and improve walking distance, not to cure the underlying condition.

Q: How quickly can I expect Noclaud to start working?

A: Clinical studies indicate that initial benefits may be observed as early as 2 to 4 weeks after treatment begins. However, the full beneficial effect of the medicine may require continuous treatment for up to 12 weeks.

Q: What happens if I forget to take Noclaud one day?

A: If a dose is missed, it can be taken as soon as it is remembered. However, if it is close to the time for the next scheduled dose, regulatory information advises that the missed dose should be skipped and the next dose taken at the regular time, without doubling up.

Q: Does Noclaud interact with supplements like vitamins or herbal products?

A: Yes, official labeling advises reporting all vitamins, nutritional supplements, and herbal products to a healthcare professional. This is necessary because potential interactions with Noclaud may exist.

Q: Does Noclaud interact with alcohol?

A: Official product information notes that the risk of certain side effects, such as dizziness, may be increased with alcohol use.

Q: What medical tests might be needed while taking Noclaud?

A: Due to the potential for hematologic (blood) adverse reactions, regulatory warnings recommend that platelet and white blood cell counts be monitored periodically.

Q: How long is the typical duration of treatment with Noclaud?

A: The duration of treatment is determined by individual response. Official guidelines state that discontinuation may be considered if there is no improvement in symptoms after three months of continuous use.

Q: Can Noclaud affect driving or operating machinery?

A: Official product labeling includes a specific warning because Noclaud may cause dizziness. Patients are advised to exercise caution before driving or operating machinery until they understand how the medicine affects them.

Q: What are the most common reasons someone might stop taking Noclaud?

A: Official documents suggest that treatment may be stopped if symptoms of the condition remain unimproved after three months of use. Common side effects like headache and diarrhea are also most frequent when treatment is initiated, and often diminish with continued use.

Q: Is Noclaud generally well-tolerated?

A: Regulatory safety data classifies the adverse reactions by frequency. It notes that many common effects, such as headache and diarrhea, tend to be most frequent when starting treatment and often become less noticeable with continued use.

Q: Is Noclaud considered a high-risk medication?

A: Official regulatory labeling includes a Boxed Warning. This critical warning exists because the medicine is strictly contraindicated (prohibited) for use in patients who have heart failure of any severity.

Q: Why does my prescription bottle for Noclaud have a warning label about [common interaction]?

A: Regulatory bodies require warnings to inform patients of the potential for serious adverse events. For Noclaud, this is largely due to the risk of increased bleeding when it is used alongside certain other medicines that also affect blood clotting.

Q: How long does Noclaud stay in your system after you stop taking it?

A: The half-life of the active substance is approximately 11 to 13 hours. Clinical data suggests that the drug’s platelet-inhibiting effect typically recovers within 12 to 16 hours after discontinuation.

Q: Does Noclaud affect sleep patterns?

A: Regulatory documents list 'drowsiness' as one of the reported adverse effects that may occur. Any side effect that causes drowsiness could potentially impact an individual's normal sleep patterns.

Q: Is Noclaud a controlled substance?

A: Regulatory agencies classify Noclaud as a prescription-only (Rx-only) medicine. The official status is that the medicine is not assigned to any DEA controlled substance schedule.

Q: What should I do if I suspect an interaction between Noclaud and another medication?

A: Official patient advice emphasizes that individuals should inform their healthcare professional about all medications they use. Patients are also advised to promptly report any adverse effects, particularly signs of unusual bleeding or easy bruising.

Q: Does Noclaud have a risk of dependence or withdrawal symptoms?

A: The medication is not a controlled substance and does not carry risks of physical dependence or addiction. However, studies show that the improvement in walking ability gained from the drug will typically be lost once treatment is stopped.

Q: What should I look out for that indicates Noclaud might not be right for me?

A: Official information advises promptly reporting any signs that may indicate a serious issue, such as unusual bleeding or easy bruising, or signs that suggest blood disorders (e.g., fever, sore throat).

How should Noclaud be stored and disposed of?

The official requirements for storing and disposing of Noclaud (cilostazol) are designed to maintain product integrity and ensure household safety.

Official Storage Conditions

Noclaud tablets must be kept at room temperature and stored away from excess heat, moisture, and direct light. It is mandatory to keep the medicine from freezing and to ensure the container remains tightly closed to preserve quality.

Child Safety Requirement: A critical instruction across official labeling is to always keep Noclaud out of the sight and reach of children.

Disposal of Unused Product

Any unused or expired Noclaud must be disposed of according to local official procedures. Patients should ask a healthcare professional how to properly discard any medicine that is no longer needed to ensure regulatory compliance and environmental protection.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

Available in countries:

Equivalent of Noclaud found in:

A-Z Index: