Drug Identity
Active Ingredient
Warfarin Sodium
Chemical Class
Coumarin
Pharmacological Group
on the basis of mechanism of action and also cl...
ATC Code
B01AA03
Status
Essential Medicine
What is Coagurin?
Uses
Warfarin is an anticoagulant (blood thinner). Warfarin reduces the formation of blood clots. Warfarin is used to treat or prevent blood c...
How It Works
Chemical Class
Coumarin
Pharmacological Group
on the basis of mechanism of action and also classified in Anticoagulants pharmacological group
Warfarin (Na) belongs to Coumarin. It belongs to Epoxide Reductase inhibitor pharmacological group on the basis of mechanism of action and also classified in Anticoagulants pharmacological group. The Molecular Weight of Warfarin (Na) is 330.30. It is weakly alkaline drug, 6.10% solution of the drug is isotonic and Its pKa is 5.0.
How to Take It
1
Adult · PO
2 to 10 mg — 24 hourly
Maintenance, As Required
2
Adult · PO
5 to 15 mg — 24 hourly
Initially for 2-5 days
3
Adult
Scraped Dose
Take warfarin exactly as prescribed by your doctor. Follow all directions on your prescription label. Your doctor may occasionally change your dose. Do not take warfarin in larger or smaller amount
4
Child · Oral
0.1 to 0.2 mg/kg — 24 hourly
Maintenance
5
Child · Oral
0.2 to 0.6 mg/kg — 24 hourly
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Safety Alerts
You should not take warfarin if you are allergic to it, or if: you have very high blood pressure
you recently had or will have surgery on your brain, spine, or eye
you undergo a spinal tap or spinal anesthesia (epidural)
or you cannot take warfarin on time every day
You also should not take this medicine if you are prone to bleeding because of a medical condition, such as: a blood cell disorder (such as low red blood cells or low platelets)
Important Warnings
You should not take warfarin if you are prone to bleeding because of a medical condition, if you have an upcoming surgery, or if you need a spinal tap or epidural
Do not take warfarin if you cannot take it on time every day
Warfarin increases your risk of severe or fatal bleeding, especially if you have certain medical conditions, if you are 65 or older, or if you have had a stroke, or bleeding in your stomach or intestines
Seek emergency help if you have any bleeding that will not stop
Call your doctor at once if you have other signs of bleeding such as: swelling, pain, feeling very weak or dizzy, unusual bruising, bleeding gums, nosebleeds, heavy menstrual periods or abnormal vaginal bleeding, blood in your urine, bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds
Many other drugs can increase your risk of bleeding when used with warfarin
Tell your doctor about all medicines you have recently used
Avoid making any changes in your diet without first talking to your doctor
Side Effects
Get emergency medical help if you have signs of an allergic reaction to warfarin : hivesdifficult breathingswelling of your facelipstongueor throat. Warfarin increases your risk of bleedingwhich can be severe or life-threatening. Call your doctor at once if you have any signs of bleeding such as: sudden headachefeeling very weak or dizzyswellingpainunusual bruisingbleeding gumsnosebleedsbleeding from wounds or needle injections that will not stopheavy menstrual periods or abnormal vaginal bleeding
Drug Interactions
Many drugs (including some over-the-counter medicines and herbal products) can affect your INR and may increase the risk of bleeding if you take them with warfarin. Not all possible drug interactions are listed in this medication guide. It is very important to ask your doctor and pharmacist before you start or stop using any other medicine
especially: other medicines to prevent blood clots
an antibiotic or antifungal medicine
supplements that contain vitamin K
or herbal (botanical) products - coenzyme Q10
cranberry
echinacea
garlic
Storage
Tab, Inj Store in a well closed container, Below 40°C. Protect from Sunlight.
Price Intelligence
Rs 130.04
DRAP approved maximum price · per pack of 30 · approved 23 Jul, 2026
No retail price observed for this pack. Retailers may not exceed the approved maximum.
Prices across sources
DRAPper pack of 30Rs 130.04
Should you consider an alternative?
Other options containing Warfarin Sodium, and what they are not.
Identical active ingredient at the same strength. Cheapest per unit first.
Ordered by lowest price per unit where a pack size is known, then by price. Order is never affected by sponsorship. Not medical advice — confirm any change with your pharmacist or doctor.
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