Coumadin (Warfarin Sodium)
Coumadin (Warfarin Sodium) is a prescription medication used to prevent blood clots and to reduce the risk of stroke, heart attack, or other serious conditions in people who have specific types of blood or circulation disorders. Trusted by healthcare professionals for over six decades, Coumadin is your partner in managing health risks associated with clotting disorders.
Why Choose Coumadin (Warfarin Sodium)?
- Prevention of venous thrombosis and pulmonary embolism.
- Prevention and treatment of thromboembolic complications associated with atrial fibrillation and/or cardiac valve replacement.
- Treatment of myocardial infarction.
How to Use Coumadin (Warfarin Sodium)?
- Dosage must be individualized according to the patient’s INR (International Normalized Ratio) response.
- Regular blood tests are required to ensure the medication is effective and safe.
- Take as directed by your healthcare provider, usually once a day with or without food.
Important Safety Information about Coumadin
- Monitoring: Regular INR tests are required to check the effectiveness of the blood-thinning.
- Dietary Considerations: Keep your vitamin K intake consistent, as it affects how Coumadin works.
- Interactions: Inform your doctor about all other medications you are taking, as many can interact with Coumadin.
Fact Table for Coumadin
| Facts | Details |
| Generic Name | Warfarin Sodium |
| Brand Name | Coumadin® |
| Classification | Anticoagulant (Blood thinner) |
| Indications | – Prevention of venous thrombosis and pulmonary embolism – Treatment of thromboembolic complications associated with atrial fibrillation – Treatment and prevention of complications in certain types of heart surgery – Prevention of stroke in patients with atrial fibrillation |
| Dosage Forms | Oral tablets (1 mg, 2 mg, 2.5 mg, 3 mg, 4 mg, 5 mg, 6 mg, 7.5 mg, 10 mg) |
| Administration | Once daily, with or without food |
| Mechanism of Action | Inhibits Vitamin K-dependent coagulation factors |
| Required Monitoring | Regular INR monitoring to adjust dosage accordingly |
| Common Side Effects | Easy bruising, prolonged bleeding |
| Drug Interactions | Extensive; includes other anticoagulants, antibiotics, antifungals, and herbal supplements like St. John’s Wort |
| Alcohol Interaction | Alcohol may increase bleeding risk; limit or avoid intake |
| Contraindications | Major bleeding, hypersensitivity to warfarin, pregnancy (certain conditions) |
| Storage | Store at room temperature away from moisture and heat |
| Legal Status | Prescription required |
Common Side Effects of Coumadin
Like all medications, Coumadin (Warfarin Sodium) can cause side effects, although not everybody gets them. Understanding these side effects can help you use this medication safely and effectively.
- Easy bruising
- Prolonged bleeding
If you experience any of these side effects or others, make sure to discuss them with your healthcare provider. They can offer advice and may adjust your treatment if necessary. Report any severe or unexpected side effects immediately.
How Can You Buy Coumadin (Warfarin Sodium)?
You can order Coumadin (Warfarin Sodium) using these methods on our website:
- Order Online
- Order by Phone
- Order by Fax
- Order your refills
Visit our How to order page.
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Dr. Conor Sheehy, PharmD, BCPS is a practicing clinical pharmacist that works in primary care.
He supports other members of the healthcare team including physicians, mid-level providers, nurses, and other clinical staff.
He also likes to use his drug knowledge to inform his patients and the public about the benefits and risks they can expect from their medications.
His clinical specialties include: anticoagulation, diabetes management, and psychiatric care.
Please call 1-800-258-0477 or email us if you have any questions or concerns.
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