Coumadin
Also called: Warfarin

Why does my child need this medicine?

• Slows the production of blood clotting factors in the liver which "thins the blood"
• Prevents blood clots from forming

How should I give my child this medicine?

• Usually Coumadin is given once a day.
• It is important to give Coumadin at the same time every day.
• Do NOT stop giving Coumadin unless told to do so by your child’s doctor.
• There are nine different strengths of Coumadin tablets. Each tablet is a different color.
• The number of milligrams (strength) is printed on the tablet. No matter where the prescription is filled, the tablets should look the same.
• The exact amount of Coumadin your child needs is determined by a blood test. This blood test is called a prothrombin time test (also recorded as an INR). This blood test is very important because the doctor is able to see how fast your child’s blood is clotting and adjust the dose accordingly. It is very important to have the blood test as ordered by the doctor.
• Sickness, diet, exercise and other medicines (prescription and over-the-counter) may affect the INR. Tell the doctor about changes in your child’s health and lifestyle because he or she may need to adjust the dosage of Coumadin. Do NOT take other medicines without asking a doctor or pharmacist.
• Many foods contain Vitamin K. Vitamin K helps the blood make clots. Large changes in the amount of Vitamin K your child eats may affect the way Coumadin works. Therefore, it is important to maintain a consistent amount of Vitamin K in the diet. Foods high in Vitamin K include green leafy vegetables, and some types of beans and peas. It is not necessary to avoid foods containing Vitamin K. It is MORE important to eat a consistent, moderate amount of these foods because they are an important part of a healthy diet.
• Avoid alcoholic beverages.
• Avoid contact sports or activities that may result in a serious fall or other injury.
• Birth control pills and Coumadin cannot be taken at the same time.

Coumadin can cause birth defects. Consult your doctor before considering pregnancy.

How should I store this medicine?

• Store in the original bottle, away from heat, light, and moisture.
• Keep all medicine out of the reach of children. If any child gets into the bottle and swallows Coumadin, call the Poison Control Center (In Indiana 1-800-382-9097)

What should I do if my child misses a dose of medicine?

• Give the missed dose of Coumadin as soon as you remember it.
• Do NOT give a double dose of Coumadin the next day to make up for the missed dose.

When should I call the doctor?

Call the doctor if your child has:

• A serious fall or accident
• Bleeding that does not stop from cuts or from the nose
• More bleeding than usual when brushing the teeth
• More menstrual bleeding than usual
• Red or dark brown urine
• Red or black bowel movements
• Unusual, unexplained bruising
• Coughing or throwing up blood