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Drug Info > T > Taro-Warfarin
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DIN (Drug Identification Number)


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Brand Name

Taro-Warfarin

Common Name
warfarin


In this drug factsheet:



DIN (Drug Identification Number)

02242687 TARO-WARFARIN 10MG TABLET
02242680 TARO-WARFARIN 1MG TABLET
02242682 TARO-WARFARIN 2.5MG TABLET
02242681 TARO-WARFARIN 2MG TABLET
02242683 TARO-WARFARIN 3MG TABLET
02242684 TARO-WARFARIN 4MG TABLET
02242685 TARO-WARFARIN 5MG TABLET
02242686 TARO-WARFARIN 6MG TABLET
02242697 TARO-WARFARIN 7.5MG TABLET

How does this medication work? What will it do for me?

Warfarin belongs to the class of medications called anticoagulants. It is sometimes referred to as a "blood thinner," although it does not actually thin the blood.

Warfarin helps to prevent blood clots from forming or from getting bigger, but it does not dissolve blood clots. Warfarin is used for the treatment of blood clots in the veins, arteries, lungs, and heart. It is also used to prevent clots for people with conditions that put them at an increased risk of developing blood clots (e.g., some abnormal heart rhythms (atrial fibrillation), leg circulation problems). It is also used to reduce the risk of blood clots due to surgical procedures or trauma.

Blood clots in the circulation are dangerous because they can cause medical problems such as heart attacks, stroke, and pulmonary embolism. Warfarin helps to reduce blood clotting within 24 hours of taking the medication. The full effect may take 72 to 96 hours to occur.

Warfarin works by partially blocking the reuse of vitamin K in your liver. Vitamin K is needed to make clotting factors that help the blood to clot and prevent bleeding. Vitamin K is found naturally in foods such as leafy, green vegetables, and certain vegetable oils. If you are taking warfarin, you may continue to eat these foods, but do not make any drastic changes to your diet.

This medication may be available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of this medication may not be used for all of the conditions discussed here.

Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.

Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.

How should I use this medication?

The dose of warfarin is individualized by your doctor according to blood clotting time as determined by laboratory tests, called an INR, performed at regular intervals. It is very important to keep your lab appointments, as there is a narrow range between too much and too little of the medication. Too much medication may cause you to bleed more. Too little medication may lead to harmful clots forming.

Different circumstances in your life (e.g., eating certain foods or using certain medications) can cause the medication to work more or less effectively. Ask your doctor or pharmacist for a list of these foods and medications.

It is important to manage your lifestyle and habits appropriately when taking warfarin:

  • do not make drastic changes in your diet, such as eating large amounts of green, leafy vegetables
  • do not attempt to change your weight by dieting without first checking with your doctor or pharmacist
  • do not participate in any activity or sport that may result in serious injury
  • avoid drinking alcohol
  • avoid cutting yourself

It is very important that you take warfarin exactly as prescribed by your doctor. Take your dose of warfarin at the same time each day. If you miss a dose of warfarin, notify your health care provider right away. Take the missed dose as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Store this medication at room temperature, protect it from light and moisture, and keep it out of the reach of children.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.





What form(s) does this medication come in?

1 mg
Each pink, single-scored tablet, with "WARFARIN1" on one side and "TARO" on the other, contains warfarin sodium 1 mg. Nonmedicinal ingredients: D&C Red No. 6 Lake, lactose, magnesium stearate, and pregelatinized cornstarch.

2 mg
Each lavender, single-scored tablet, with "WARFARIN2" on one side and "TARO" on the other, contains warfarin sodium 2 mg. Nonmedicinal ingredients: FD&C Blue No. 2 Lake, FD&C Red No. 40 Lake, lactose, magnesium stearate, and pregelatinized cornstarch.

2.5 mg
Each green, single-scored tablet, with "WARFARIN2½" on one side and "TARO" on the other, contains warfarin sodium 2.5 mg. Nonmedicinal ingredients: D&C Yellow No. 10 Lake, FD&C Blue No. 2 Lake, lactose, magnesium stearate, and pregelatinized cornstarch.

3 mg
Each tan, single-scored tablet, with "WARFARIN3" on one side and "TARO" on the other, contains warfarin sodium 3 mg. Nonmedicinal ingredients: D&C Yellow No. 10 Lake, FD&C Blue No. 2 Lake, FD&C Red No. 40 Lake, lactose, magnesium stearate, and pregelatinized cornstarch.

4 mg
Each blue, single-scored tablet, with "WARFARIN4" on one side and "TARO" on the other, contains warfarin sodium 4 mg. Nonmedicinal ingredients: FD&C Blue No. 1 Lake, lactose, magnesium stearate, and pregelatinized cornstarch.

5 mg
Each peach, single-scored tablet, with "WARFARIN5" on one side and "TARO" on the other, contains warfarin sodium 5 mg. Nonmedicinal ingredients: D&C Red No. 6 Lake, D&C Yellow No. 10 Lake, lactose, magnesium stearate, and pregelatinized cornstarch.

6 mg
Each teal, single-scored tablet, with "WARFARIN6" on one side and "TARO" on the other, contains warfarin sodium 6 mg. Nonmedicinal ingredients: FD&C Blue No. 2 Lake, FD&C Yellow No. 10 Lake, lactose, magnesium stearate, and pregelatinized cornstarch.

7.5 mg
Each yellow, single-scored tablet, with "WARFARIN7½" on one side and "TARO" on the other, contains warfarin sodium 7.5 mg. Nonmedicinal ingredients: D&C Yellow No. 10 Lake, lactose, magnesium stearate, and pregelatinized cornstarch.

10 mg
Each white, single-scored tablet, with "WARFARIN10" on one side and "TARO" on the other, contains warfarin sodium 10 mg. Nonmedicinal ingredients: lactose, magnesium stearate, and pregelatinized cornstarch. The 10 mg does not contain dye.

Who should NOT take this medication?

Do not take warfarin if you:

  • are allergic to warfarin or any ingredients of the medication
  • are pregnant
  • are undergoing certain types of surgery
  • do not have access to an adequate lab facility to get regular blood tests done
  • have a high risk of abortion, eclampsia, and preeclampsia (complications of pregnancy often associated with sudden onset of very high blood pressure)
  • have bleeding tendencies associated with active ulcers or overt bleeding of the stomach, genitourinary, or respiratory tracts, or bleeding associated with many other medical conditions
  • have bleeding tendencies or blood disorders
  • have malignant hypertension
  • have recently had or are planning to have surgery of the central nervous system or the eye or surgery associated with trauma resulting in large open surfaces
  • have senility, alcoholism, or psychosis, or other conditions where you may not be able to cooperate with taking the medication and having the necessary lab tests on a regular basis

Anticoagulation (blood thinning) should not take place in any situation where the risk of bleeding might be greater than the potential benefits of anticoagulation.



 

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