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Warfarin

Warfarin (generically available, and known under brands like Marevan and Warfant) acts as an anticoagulant to reduce the risk of dangerous clotting. This medication addresses a range of cardiovascular conditions, with Warfarin Tablets the primary listed formulation.

Warfarin Tablets

Atrial Fibrillation, Thromboembolism

1 · 2 · 5mg

Warfarin 1mg, 2mg and 5mg tablets, used in the management of atrial fibrillation, thromboembolism and deep vein thrombosis. A vitamin K antagonist.

From$0.40/ tabletView

Key points

  • This vitamin K antagonist blocks the liver’s production of clotting factors, extending the time blood takes to clot and preventing new clots forming.
  • It is prescribed for atrial fibrillation, thromboembolism and deep vein thrombosis to lower the risk of clots reaching major organs.
  • Because response varies between individuals, doses of brands such as Marevan and Warfant need regular monitoring and consistent vitamin K intake from food.

What is Warfarin?

Managing blood coagulation requires specific therapeutic compounds like Warfarin. This agent belongs to the vitamin K antagonist class and provides a way to regulate the blood’s ability to form clots. Because individual response varies based on lifestyle and health factors, widely recognised brands like Marevan or Warfant exist to provide consistent supply.

Regular monitoring and coordination with a doctor remain necessary when utilising this compound. The availability of standardised tablet forms allows for the precise titration of the dose, which accommodates the subtle biological needs of individual patients and their specific blood coagulation profiles.

What Warfarin is used for

Usage of this anticoagulant centers on preventing clot formation in conditions such as Atrial Fibrillation, Thromboembolism, and Deep Vein Thrombosis. Often, it falls under the Heart & Blood Pressure category.

Healthcare providers may suggest this medication to reduce the formation of clots in the heart or blood vessels. By slowing the coagulation process, the medicine decreases the risk of clots traveling to key organs.

How does Warfarin work?

Blocking the production of vitamin K-dependent clotting factors in the liver constitutes the primary mechanism of action. By inhibiting these specific proteins, the medication extends the time required for blood to clot.

This process prevents the enlargement of existing clots and stops the formation of new potential blockages. Patients require stable levels of the compound in their system to maintain the desired effect on blood coagulation rates.

Warfarin brands and forms

Manufacturers produce this medication in standard tablet varieties, which ensure accurate dosing. Brands such as Marevan and Warfant represent established options for those seeking consistent quality. The focus on tablet formulation allows patients to manage their routine with predictable and reliable dosages.

Safety overview for Warfarin

What to check before using this medicine

Review individual health records, including any history of bleeding disorders, liver function, or current medications that might increase bleeding risk. Food intake, particularly sources high in vitamin K, influences the effectiveness of the treatment and requires consistent monitoring.

Possible reactions and tolerability

Common reactions relate to the thinning of the blood, which may result in longer bleeding times after minor injuries or increased bruising. Any sign of unusual bleeding, such as frequent nosebleeds or persistent gum bleeding, warrants prompt medical attention.

Interactions and health factors

Alcohol, certain herbal supplements, and other medications alter how the body processes this anticoagulant. Maintaining a stable state of health and avoiding sudden changes in diet or medication schedule supports the desired physiological response. Product labelling and verified clinical sources remain the correct references for specific contraindications, interactions and reactions.

Further reading

What is warfarin used for?

Warfarin is used in conditions such as atrial fibrillation, thromboembolism and deep vein thrombosis to lower the risk of clots reaching major organs. It works by slowing the liver's production of clotting factors.

How does warfarin work?

Warfarin is a vitamin K antagonist that blocks the liver's production of vitamin K-dependent clotting factors, so blood takes longer to clot. This reduces the risk of new clots forming.

How long does warfarin take to work?

Warfarin takes 48 to 72 hours to start working, and its effects last 2 to 5 days after the last dose.

What are the side effects of warfarin?

Common reactions relate to thinning of the blood, such as bruising and minor bleeding. You may also see epistaxis, haematuria or alopecia, and major haemorrhage or calciphylaxis need immediate medical attention. Speak to a doctor or pharmacist if you notice unusual bleeding.

Can warfarin be taken with alcohol?

Alcohol alters how the body processes this anticoagulant, so it is best to avoid alcohol or limit intake while taking warfarin. Certain herbal supplements and other medications also alter how the body processes this anticoagulant, so check with a doctor or pharmacist before making changes.

Who should not take warfarin?

Warfarin is not suitable in pregnancy, severe hypertension, haemorrhagic conditions or severe hepatic impairment. A history of bleeding disorders, current liver function and any medications that might increase bleeding risk should be reviewed with a doctor beforehand.

Which warfarin products does Yasabai sell?

Products containing warfarin include Warfarin Tablets. Compare forms, strengths and packs in the listings above.

What are other names for warfarin?

Besides the products listed here, warfarin is sold under brand names such as Marevan and Warfant. Names differ from country to country, so the active ingredient is the surest way to compare.

Is warfarin available over the counter in Thailand?

Yes, online. Yasabai does not ask for a prescription to order warfarin. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.

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Can I order warfarin online in Thailand?

Yes. Our pharmacy partners ship from India to Thailand and across Asia in discreet packaging. Standard Airmail takes up to 3 weeks; Express Tracked Courier takes up to 1 week.

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