Warfarin Sodium

Jantoven an anticoagulant (blood thinner) used to treat or prevent blood clots in veins or arteries. This can reduce the risk of stroke, heart attack, or other serious conditions.

• Coumadin
• Jantoven

• Coumadin
• Jantoven
• Warfarin Sodium

• Tablet

• By mouth

Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.

This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

This medicine is not right for everyone. Do not use it if you had an allergic reaction to warfarin, if you are pregnant, or if you have health problems that could cause bleeding.

It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant. Use an effective form of birth control to keep from getting pregnant during treatment and for at least 1 month after your last dose.

Tell your doctor if you are breastfeeding, or if you have kidney disease, liver disease, heart disease, diabetes, heart failure, high blood pressure, an infection, a stomach ulcer, or protein C deficiency. Also tell your doctor if you had recent surgery or an injury, or a history of stroke, anemia, severe bleeding or bruising, or problems caused by heparin use.

This medicine may cause the following problems: Bleeding, which may be life-threateningGangrene (skin or tissue damage)Calciphylaxis or calcium uremic arteriolopathyKidney problems, including acute kidney injuryPurple toes syndrome

You must have a PT/INR blood test while you use this medicine to check how well your blood is clotting. Your doctor will use the test results to make sure the medicine is working properly. Keep all appointments for the PT/INR blood tests.

You may bleed or bruise more easily with warfarin. To prevent injury or cuts, do not play rough sports, be careful with sharp objects, and brush and floss your teeth gently. Blow your nose gently, and do not pick your nose.

Carry an ID card or wear a medical alert bracelet to let emergency caregivers know that you use warfarin.

Tell any doctor or dentist who treats you that you are using this medicine. You may need to stop using this medicine several days before you have surgery or medical tests.

Keep all medicine out of the reach of children. Never share your medicine with anyone.

Many medicines and foods can affect how warfarin works and may affect the PT/INR test results. Tell your doctor before you start or stop any medicine, especially the following: Co-enzyme Q10, echinacea, garlic, ginkgo, ginseng, goldenseal, or St John's wortAnother blood thinner, including apixaban, argatroban, bivalirudin, cilostazol, clopidogrel, dabigatran, desirudin, dipyridamole, heparin, lepirudin, prasugrel, rivaroxaban, ticlopidineMedicine to treat depression or anxiety, including citalopram, desvenlafaxine, duloxetine, escitalopram, fluoxetine, fluvoxamine, milnacipran, paroxetine, sertraline, venlafaxine, vilazodoneMedicine to treat an infectionNSAID pain or arthritis medicine, including aspirin, celecoxib, diclofenac, diflunisal, fenoprofen, ibuprofen, indomethacin, ketoprofen, ketorolac, mefenamic acid, naproxen, oxaprozin, piroxicam, sulindac. Check labels for over-the-counter medicines to find out if they contain an NSAID.Steroid medicine, including dexamethasone, hydrocortisone, methylprednisolone, prednisolone, prednisone

Warfarin works best if you eat about the same amount of vitamin K every day. Foods high in vitamin K include asparagus, broccoli, brussels sprouts, cabbage, green leafy vegetables, plums, rhubarb, and canola oil. Talk to your doctor before you make changes to your normal diet.

Do not eat grapefruit or drink grapefruit juice while you are using this medicine.

You must have a PT/INR blood test while you use this medicine to check how well your blood is clotting. Your doctor will use the test results to make sure the medicine is working properly. Keep all appointments for the PT/INR blood tests.

You may bleed or bruise more easily with warfarin. To prevent injury or cuts, do not play rough sports, be careful with sharp objects, and brush and floss your teeth gently. Blow your nose gently, and do not pick your nose.

Carry an ID card or wear a medical alert bracelet to let emergency caregivers know that you use warfarin.

Tell any doctor or dentist who treats you that you are using this medicine. You may need to stop using this medicine several days before you have surgery or medical tests.

Keep all medicine out of the reach of children. Never share your medicine with anyone.

• Dizziness, fainting, lightheadedness
• Purplish red, net-like, blotchy spots on the skin
• Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
• Red or dark brown urine, or red or black, tarry stools
• Bleeding that does not stop, bruising, or weakness
• Purple toes or feet, or new pain in your leg, foot, or toes
• Vomiting blood or material that looks like coffee grounds
• Bleeding from your gums or nose, coughing up blood, heavy monthly periods
• Pain, brown or black skin, or skin that is cool to the touch