GNH USA

Europe — EMA

Marevan

GNH USA supplies Marevan (Warfarin Sodium), an anticoagulant for prevention of venous thromboembolism, stroke in atrial fibrillation, and prosthetic heart

Warfarin Sodium

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What is Warfarin Sodium?

Warfarin Sodium, the active ingredient in Marevan, is an anticoagulant presented as an oral formulation for oral use. It is employed to prevent and treat clot‑related conditions such as venous thromboembolism, stroke in atrial fibrillation, and thromboembolic events in patients with prosthetic heart valves.

GNH USA supplies Marevan as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

What is Warfarin Sodium used for?

Marevan is an oral anticoagulant used to manage conditions where abnormal clot formation poses a risk.

- Venous thromboembolism: prevents new clot formation and treats existing clots. - Atrial fibrillation: reduces the risk of stroke by inhibiting clot development. - Prosthetic heart valves: provides prophylaxis against thromboembolic events associated with artificial valves.

What are the side effects of Warfarin Sodium?

Marevan may cause a range of adverse reactions, from mild to severe.

Common Side Effects: - Bruising or minor bleeding - Gastrointestinal upset (nausea, abdominal discomfort) - Headache - Dizziness or light‑headedness - Skin rash or itching - Minor hematuria

Serious or Rare Side Effects: - Severe or uncontrolled bleeding - Hemorrhagic stroke - Skin necrosis - Anaphylactic or severe allergic reaction - Significant liver enzyme elevation

What precautions apply to Warfarin Sodium?

Before prescribing Marevan, clinicians should consider several safety measures.

- Monitor INR regularly: adjust dosage to maintain therapeutic range. - Assess bleeding risk: review history of ulcers, surgery, or trauma. - Avoid strong CYP2C9 inhibitors: these may increase warfarin plasma levels. - Educate patients on signs of bleeding: bruising, blood in urine or stool, prolonged nosebleeds. - Store at ambient temperature: keep in the original container, protect from moisture and light.

What does Warfarin Sodium interact with?

Marevan interacts with many medicines; some require avoidance while others need close monitoring.

Major Interactions (Avoid): - Amiodarone: can markedly increase anticoagulant effect. - Azole antifungals (e.g., fluconazole): raise warfarin plasma concentrations. - Rifampin: reduces warfarin effectiveness.

Moderate Interactions (Monitor Closely): - NSAIDs: elevate risk of gastrointestinal bleeding. - Aspirin: additive antiplatelet effect may increase bleeding. - Vitamin K‑rich foods: may diminish anticoagulant response.

Frequently asked questions

What conditions is Marevan used to treat?+
Marevan, containing warfarin sodium, is prescribed to prevent and treat venous thromboembolism, reduce stroke risk in patients with atrial fibrillation, and provide prophylaxis against thromboembolic events in individuals with prosthetic heart valves.
How does warfarin sodium work to prevent blood clots?+
Warfarin sodium blocks the vitamin K epoxide reductase enzyme, which is needed to recycle vitamin K. This inhibition lowers the production of clotting factors II, VII, IX, and X, decreasing the blood’s ability to form clots.
What is the usual dose of Marevan?+
The dose of Marevan is individualized. A qualified prescriber determines the appropriate amount based on the patient’s INR target, clinical condition, and response to therapy.
Is Marevan safe to use during pregnancy or while breastfeeding?+
Warfarin can cross the placenta and is generally contraindicated in pregnancy because of fetal bleeding risk. Its safety during breastfeeding is also limited; clinicians should evaluate risks and consider alternative therapies.
How do I order Marevan from GNH USA?+
To order Marevan, submit an enquiry on the product page at gnh-usa.com, specifying the required quantity. GNH USA works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.
How does Marevan compare with other anticoagulants?+
Marevan (warfarin) is a vitamin K antagonist, whereas newer oral anticoagulants (e.g., direct thrombin or factor Xa inhibitors) act on specific clotting enzymes and often require less routine monitoring. Warfarin offers a long clinical history and a reversible effect with vitamin K, but it demands regular INR checks.
What are the recommended storage conditions for Marevan?+
Marevan should be stored at ambient temperature, below 25 °C, in its original packaging. Keep the product away from moisture, direct sunlight, and heat sources to maintain stability.
How is Marevan administered to patients?+
Marevan is taken orally, usually once daily, with or without food. The exact timing and dosage are set by the prescribing clinician and may be adjusted based on INR monitoring.
What are the most serious risks associated with Marevan therapy?+
The most critical risks include severe or uncontrolled bleeding, hemorrhagic stroke, and rare skin necrosis. Patients should be educated to recognize signs such as unusual bruising, blood in urine or stool, and sudden severe headache.
Who should not use Marevan?+
Marevan is contraindicated in patients with active major bleeding, recent intracranial hemorrhage, severe uncontrolled hypertension, or known hypersensitivity to warfarin. It should also be used with caution in individuals with liver disease, pregnancy, or a history of bleeding disorders.
Information provided on this page is for educational use by procurement and clinical professionals. Always consult a licensed healthcare provider for medical advice and prescribing decisions. GNH USA supplies this product subject to applicable regulatory and licensing requirements.

Product details

Drug
Warfarin Sodium
Route
Oral Use
Manufacturer
Orion Corporation
Origin
EU

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