Type of medicine: antirheumatic
Generic and brand names: leflunomide, oral; Arava
This medicine is taken by mouth to treat rheumatoid arthritis in adults. It helps to lessen its symptoms and reduce damage to the joints. It may be used for other conditions as determined by your health care provider.
Before taking this medicine, tell your healthcare provider if you have ever had:
You may need a TB skin test before you start treatment. Talk with your healthcare provider about this.
Females of childbearing age: Do not take this medicine if you are pregnant. This medicine has been reported to cause birth defects. Talk with your healthcare provider about effective birth control. You must not get pregnant while you are using this medicine. Stop taking this medicine at the first sign that you may be pregnant and contact your healthcare provider right away. Before getting pregnant, you must take another medicine to clear this drug from your body after your treatment ends. Do not breast-feed while taking this medicine.
Males: If you wish to father a child, stop taking this medicine. Talk with your healthcare provider about effective birth control. You must not father a child while you are using this medicine and until you take another medicine to clear this drug from your body after your treatment ends.
Check the label on the medicine for directions about your specific dose. Take this medicine exactly as your healthcare provider prescribes. Do not take more or less or take it longer than prescribed. Do not stop taking this medicine without your healthcare provider's approval, even if you start to feel better. When your healthcare provider tells you to stop, you need to take another medicine to help clear this medicine from your body. Without the elimination medicine, it may take up to 2 years for this medicine to leave your body. Follow your healthcare provider's directions exactly.
You may take this medicine with or without food. Taking it with meals may lessen the chance the drug will upset your stomach.
If you miss a dose, take it as soon as you remember unless it is almost time for the next scheduled dose. In that case, skip the missed dose and take the next one as directed. Do not take double doses. If you are not sure of what to do if you miss a dose, or if you miss more than one dose, contact your healthcare provider.
If you or anyone else has intentionally taken too much of this medicine, call 911 or go to the emergency room right away. If you pass out, have seizures, weakness or confusion, or have trouble breathing, call 911. If you think that you or anyone else may have taken too much of this medicine, call the poison control center. Do this even if there are no signs of discomfort or poisoning. The poison control center number is 800-222-1222.
Symptoms of an acute overdose may include: yellowing of the skin or eyes, severe and sudden stomach pain, diarrhea, vomiting.
WARNING: Do not take this medicine if you are pregnant because it will seriously harm the baby. You will need to take a pregnancy test to be sure that you are not pregnant before taking this medicine. You must use a reliable method of birth control while taking this medicine. After you stop taking this medicine, do not become pregnant until you have completed a drug elimination procedure. Talk to your healthcare provider about this. After you start taking this medicine, if you have any sign of pregnancy such as a late period, stop taking this medicine and contact your healthcare provider right away. Do not breast-feed a baby while you are taking this medicine.
Severe liver injury is a rare, but serious side effect of this medicine. If you have itching, yellow eyes or skin, dark urine, loss of appetite, or light-colored stools, contact your healthcare provider right away. These may be signs of severe liver injury.
You need to have regular blood tests while taking this medicine. Keep all appointments for these tests.
Do not drink alcohol while taking this medicine. Alcohol can increase your risk of serious side effects.
You may get infections more easily when you are taking this medicine. Stay away from people with colds, flu, or other infections. Also, do not have any vaccines without getting your healthcare provider's approval first.
If you need emergency care, surgery, or dental work, tell the healthcare provider or dentist you are taking this medicine.
Along with its needed effects, your medicine may cause some unwanted side effects. Some side effects may be very serious. Some side effects may go away as your body adjusts to the medicine. Tell your healthcare provider if you have any side effects that continue or get worse.
Life-threatening (Report these to your healthcare provider right away. If you cannot reach your healthcare provider right away, get emergency medical care or call 911 for help): Allergic reaction (hives; itching; rash; trouble breathing; tightness in your chest; swelling of your lips, tongue, and throat).
Serious (report these to your healthcare provider right away): Yellowish eyes or skin, dark colored urine, unusual bruising or bleeding, unexplained tiredness or weakness, pale skin, chest pain, fever, cough or shortness of breath, abdominal pain, sores on the skin or in the mouth, severe nausea or vomiting, skin rash, itching, blistering or peeling skin.
Other: Hair loss, diarrhea, heartburn, weight loss, headache, dizziness.
When you take this medicine with other medicines, it can change the way this or any of the other medicines work. Nonprescription medicines, vitamins, natural remedies, and certain foods may also interact. Using these products together might cause harmful side effects. Talk to your healthcare provider if you are taking:
If you are not sure if your medicines might interact, ask your pharmacist or healthcare provider. Keep a list of all your medicines with you. List all the prescription medicines, nonprescription medicines, supplements, natural remedies, and vitamins that you take. Be sure that you tell all healthcare providers who treat you about all the products you are taking.
Store this medicine at room temperature. Keep the container tightly closed. Protect it from heat, high humidity, and bright light.
This advisory includes selected information only and may not include all side effects of this medicine or interactions with other medicines. Ask your healthcare provider or pharmacist for more information or if you have any questions.
Ask your pharmacist for the best way to dispose of outdated medicine or medicine you have not used. Do not throw medicine in the trash.
Keep all medicines out of the reach of children.
Do not share medicines with other people.
