Treats or prevents blood clots. This medicine is a blood thinner (anticoagulant)
Brand Names:
Coumadin, Jantoven
Contraindications:
You should not use this medicine if you have had an allergic reaction to warfarin or if you are pregnant. You should not use this medicine if you have had recent surgery, if you have certain heart problems, or if you have a condition that may cause uncontrolled bleeding (such as a stomach ulcer or hemophilia). Make sure any doctor or dentist who treats you knows that you are using this medicine. You may need to stop using the medicine several days or weeks before having surgery or medical tests
Uses:
Tablet
Your doctor will tell you how much of this medicine to take and how often. Do not take more medicine or take it more often than your doctor tells you to.
If a dose is missed:
If you miss a dose or forget to take your medicine, take it as soon as you can. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose.
Do not use extra medicine to make up for a missed dose.
Storage:
Store the medicine at room temperature, away from heat, moisture, and direct light.
Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
Keep all medicine away from children and never share your medicine with anyone.
Special precautions:
Before taking, tell your doctor and pharmacist if you are allergic to any medications. tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking. tell your doctor if you have or have ever had heart failure or liver disease. tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking, call your doctor
There are many other medicines, including nonprescription (over-the-counter) medicines and herbal products, that you should not use while you are taking warfarin. Make sure your doctor knows about ALL other medicines you are using.
Eating certain foods while you are using warfarin will change the way the medicine works. Foods that contain vitamin K (such as lettuce, spinach, broccoli, cabbage, cauliflower, or liver) may make the medicine less effective in preventing blood clots. Carefully follow your doctor's instructions about any special diet.
Warnings:
Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant. If you think you have become pregnant while using the medicine, tell your doctor right away.
Make sure your doctor knows if you are breastfeeding, or if you have a stomach ulcer, liver disease, kidney disease, high blood pressure, or any other medical problems.
Your doctor will need to check your blood or urine at regular visits while you are using this medicine. Be sure to keep all appointments.
You may bleed more easily while you are using this medicine. Stay away from rough sports or other situations where you could be bruised, cut, or injured. Brush and floss your teeth gently. Be careful when using sharp objects, including razors and fingernail clippers.
Carry an ID card or wear a medical alert bracelet to let any emergency caregivers know that you are using warfarin.
Side Effects:
Tell your doctor if any of these symptoms are severe or do not go away:
Bleeding from your gums or nose, bruising easily, coughing up blood
Blood in your urine or stools
Decrease in how much or how often you urinate
Fever, chills, sore throat, cough
Heavy menstrual bleeding, or bleeding from cuts or wounds that does not stop
Purple discoloration of your toes or the soles of your feet
