ARAVA is indicated in adults for the treatment of active rheumatoid arthritis (RA):
- to reduce signs and symptoms
- to inhibit structural damage as evidenced by X-ray erosions and joint space narrowing
- to improve physical function
Take this medicine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.
The dose of this medicine will be different for different patients. Follow your doctor’s orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
For oral dosage form (tablets):
For rheumatoid arthritis:
- Adults—At first, 100 milligrams (mg) once a day for three days, then 20 mg once a day. Your doctor may adjust the dose as needed.
- Children—Use and dose must be determined by your doctor.
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F). Protect from light. Keep out of the reach of children. Do not keep outdated medicine or medicine no longer needed. Store the medicine in a closed container at room temperature, away from heat, moisture.
Keep out of the reach of children. Do not keep outdated medicine or medicine no longer needed. Store the medicine in a closed container at room temperature, away from heat, moisture.
It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly. Blood tests may be needed to check for unwanted effects.
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.
Leflunomide may also cause birth defects if the father is using it when his sexual partner becomes pregnant. Men taking leflunomide should use condoms as a form of birth control during sexual intercourse. A man intending to father a child should stop taking this medicine and check with his doctor right away.
Serious skin reactions can occur with this medicine. Stop using this medicine and check with your doctor right away if you have any of the following symptoms while taking this medicine: blistering, peeling, or loosening of the skin; chills; itching; joint or muscle pain; red skin lesions, often with a purple center; sores, ulcers, or white spots in the mouth or on the lips; or unusual tiredness or weakness.
Liver problems may occur while you are using this medicine. Stop using this medicine and check with your doctor right away if you are having more than one of these symptoms: abdominal or stomach pain or tenderness; clay-colored stools; dark urine; decreased appetite; fever; headache; loss of appetite; nausea or vomiting; skin rash; swelling of the feet or lower legs; unusual tiredness or weakness; or yellow eyes or skin.
Leflunomide can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection. It can also lower the number of platelets, which are necessary for proper blood clotting. If this occurs, there are certain precautions you can take, especially when your blood count is low, to reduce the risk of infection or bleeding:
- If you can, avoid people with infections. Check with your doctor immediately if you think you are getting an infection or if you get a fever or chills, cough or hoarseness, lower back or side pain, or painful or difficult urination
- Check with your doctor immediately if you notice any unusual bleeding or bruising; black, tarry stools; blood in the urine or stools; or pinpoint red spots on your skin.
- Be careful when using a regular toothbrush, dental floss, or toothpick. Your medical doctor, dentist, or nurse may recommend other ways to clean your teeth and gums. Check with your medical doctor before having any dental work done.
- Do not touch your eyes or the inside of your nose unless you have just washed your hands and have not touched anything else in the meantime.
- Be careful not to cut yourself when you are using sharp objects such as a safety razor or fingernail or toenail cutters.
- Avoid contact sports or other situations where bruising or injury could occur.
Check with your doctor right away if you have a cough with or without a fever, shortness of breath, or any difficulty with breathing.
You will need to have a skin test for tuberculosis before you start using this medicine. Tell your doctor if you or anyone in your home has ever had a positive reaction to a tuberculosis test.
Using this medicine may increase your risk of getting serious infections or cancer. Talk to your doctor if you have concerns about this risk.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Stop using this medicine and check with your doctor right away if you are having burning, numbness, tingling, or painful sensations in the arms, hands, legs, or feet. These could be symptoms of a condition called peripheral neuropathy.
Adverse reactions associated with the use of leflunomide in RA include diarrhea, elevated liver enzymes (ALT and AST), alopecia and rash.
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:
Bloody or cloudy urine
difficult or painful breathing
difficult, burning, or painful urination
frequent urge to urinate
loss of appetite
nausea or vomiting
tightness in the chest
yellow eyes or skin
Burning feeling in the chest or stomach
burning, prickling, or tingling sensation in the fingers or toes
joint or muscle pain or stiffness
severe stomach pain
shortness of breath
tenderness in the stomach area
unusual tiredness or weakness
Incidence not known
black or tarry stools
blistering, peeling, or loosening of the skin
blood in the stools
burning, numbness, tingling, or painful sensations
cough or hoarseness
fever with or without chills
general feeling of tiredness or weakness
large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
lower back or side pain
pains in the stomach, side, or abdomen, possibly radiating to the back
pinpoint red spots on the skin
rapid, shallow breathing
red skin lesions, often with a purple center
red, irritated eyes
sores, ulcers, or white spots in the mouth or on the lips
unexplained bleeding or bruising
unpleasant breath odor
unsteadiness or awkwardness
unusual bleeding or bruising
upper right abdominal or stomach pain
vomiting of blood
weakness in the arms, hands, legs, or feet
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:
weight loss (unexplained)
irritation or soreness of the mouth
itching of the skin
pain or burning in the throat
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.