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Warfarin Coupon - Warfarin 5mg tablet
Warfarin, JantovenGeneric Coumadin
WARFARIN is an anticoagulant. It is used to treat or prevent clots in the veins, arteries, lungs, or heart. The lowest GoodRx price for the most common version of warfarin is around $4.00, 78% off the average retail price of $18.21. Compare anticoagulants.
Prescription Settings
30 tablets
Warfarin Coupon - Warfarin 5mg tablet
30 tablets

Warfarin Side Effects

What should I watch for?

Visit your healthcare professional for regular checks on your progress. You will need to have a blood test called a PT/INR regularly. The PT/INR blood test is done to make sure you are getting the right dose of this medicine. It is important to not miss your appointment for the blood tests. When you first start taking this medicine, these tests are done often. Once the correct dose is determined and you take your medicine properly, these tests can be done less often.

Wear a medical ID bracelet or chain, and carry a card that describes your disease and details of your medicine and dosage times.

Do not start taking or stop taking any medicines or over-the-counter medicines except on the advice of your healthcare professional.

You should discuss your diet with your healthcare professional. Do not make major changes in your diet. Vitamin K can affect how well this medicine works. Many foods contain vitamin K. It is important to eat a consistent amount of foods with vitamin K. Other foods with vitamin K that you should eat in consistent amounts are asparagus, basil, black-eyed peas, broccoli, brussel sprouts, cabbage, green onions, green tea, parsley, green leafy vegetables like beet greens, collard greens, kale, spinach, turnip greens, or certain lettuces like green leaf or romaine.

This medicine can cause birth defects or bleeding in an unborn child. Women of childbearing age should use effective birth control while taking this medicine. If a woman becomes pregnant while taking this medicine, she should discuss the potential risks and her options with her healthcare professional.

Avoid sports and activities that might cause injury while you are using this medicine. Severe falls or injuries can cause unseen bleeding. Be careful when using sharp tools or knives. Consider using an electric razor. Take special care brushing or flossing your teeth. Report any injuries, bruising, or red spots on the skin to your healthcare professional.

If you have an illness that causes vomiting, diarrhea, or fever for more than a few days, contact your health care professional. Also, check with your healthcare professional if you are unable to eat for several days. These problems can change the effect of this medicine.

Even after you stop taking this medicine, it takes several days before your body recovers its normal ability to clot blood. Ask your healthcare professional how long you need to be careful. If you are going to have surgery or dental work, tell your health care professional that you have been taking this medicine.


Common and Rare Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Less common

Bleeding gums

blood in the urine

bloody stools

blurred vision

burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings

chest pain or discomfort


coughing up blood

difficulty with breathing or swallowing

dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position

excessive bruising


increased menstrual flow or vaginal bleeding



peeling of the skin

prolonged bleeding from cuts

red or black, tarry stools

red or dark brown urine

stomach pain with cramping


unexplained swelling

unusual tiredness or weakness


Arm, back, or jaw pain

blue-green to black skin discoloration

blue or purple toes

change in consciousness

chest tightness or heaviness


clay-colored stools



fainting or loss of consciousness

fast or irregular breathing

fast or irregular heartbeat


itching or skin rash

light-colored stools

loss of appetite

nausea and vomiting

pain in the toes

pain, redness, or sloughing of the skin

pale skin

purplish red, net-like, blotchy spots on the skin

skin blisters

small red or purple spots on the skin

stomach pain

swelling of the eyes or eyelids

troubled breathing with exertion

unpleasant breath odor

unusual bleeding or bruising

upper right stomach pain

vomiting of blood

yellow eyes and skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common

Joint pain

muscle pain



change in taste, or bad, unusual, or unpleasant (after) taste

cold intolerance

excess air or gas in the stomach or intestines

full feeling

general feeling of discomfort or illness

hair loss or thinning of the hair

hives or welts

lack or loss of strength


passing gas

red, sore, or itching skin

sores, welting, or blisters

unusual drowsiness, dullness, or feeling of sluggishness

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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