Leflunomide

Rheumatoid Arthritis

Drug Status

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Government Approvals

US(FDA), UK(BNF)

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WHO Essential Medicine

NO

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Known Teratogen

Definite

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Pharmaceutical Class

Antirheumatic Agent

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Controlled Drug Substance

No

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Drug Ingredient

Leflunomide

Summary

  • Leflunomide is used to treat autoimmune conditions like rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis.

  • Leflunomide works by suppressing the immune system to reduce inflammation and slow the progression of joint damage. It blocks the production of new cells in the body, including those that cause inflammation.

  • Leflunomide is typically taken as an oral tablet. The initial dose is usually 100 mg per day for the first 3 days, followed by a lower dose of 20 mg per day for ongoing treatment.

  • Common side effects of Leflunomide include diarrhea, liver problems, hair loss, and rashes. Serious side effects can include liver damage, weakened immune system, reduced bone marrow activity, severe infections, and serious skin conditions.

  • Leflunomide should not be used during pregnancy or by those with severe liver problems. Regular blood tests are necessary. Serious skin reactions, persistent skin ulcers, or low blood counts require immediate cessation of the medication.

Indications and Purpose

How does Leflunomide work?

Leflunomide is a medication that can help reduce inflammation and suppress the immune system. It works by blocking the production of new cells in the body, including those that cause inflammation. This can help relieve symptoms of certain autoimmune conditions, such as rheumatoid arthritis.

Is Leflunomide effective?

Yes, Leflunomide is effective in treating autoimmune conditions such as rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis. It works by suppressing the immune system to reduce inflammation and slow the progression of joint damage. However, its effectiveness can vary from person to person, and it may take several weeks to months to see significant improvements in symptoms. Regular follow-up with your doctor is important to monitor progress and adjust treatment if needed.

What is Leflunomide?

Leflunomide is a medication used to treat rheumatoid arthritis and psoriatic arthritis. It works by suppressing the immune system, which helps to reduce inflammation and pain. Leflunomide is typically taken once daily by mouth.

Directions for Use

For how long do I take Leflunomide?

The duration of leflunomide treatment depends on the condition being treated:

For rheumatoid arthritis:Leflunomide is typically used long-term to manage symptoms and slow disease progression. Treatment may continue for months or years, depending on the patient's response and tolerability.

For psoriatic arthritis:It is generally taken long-term, similar to its use in rheumatoid arthritis.

For other autoimmune conditions:The duration will vary based on your condition and your healthcare provider's recommendations.

Always follow your healthcare provider’s guidance regarding the appropriate duration for your specific situation.

How do I dispose of Leflunomide?

If you can, bring unused medicines to a drug take-back program or collection site at a pharmacy or hospital. They will dispose of this medicine properly so they don't harm people or the environment. If you can't find a take-back program, you can throw most medicines in the trash at home. But first, take them out of their original containers, mix them with something undesirable like used coffee grounds, seal the mixture in a plastic bag and throw it away.

How do I take Leflunomide?

Leflunomide is usually taken as an oral tablet. Here’s how to take it:

  1. Initial dose: You’ll typically start with a higher dose for the first 3 days (usually 100 mg per day), followed by a lower dose (usually 20 mg per day) for ongoing treatment.
  2. With or without food: You can take Leflunomide with or without food.
  3. Consistent dosing: Take it at the same time each day to help remember.
  4. Water intake: Drink plenty of fluids to help prevent side effects like dehydration or diarrhea.

Always follow your doctor’s specific instructions for your dose and treatment plan.

How long does it take for Leflunomide to start working?

Leflunomide may take several weeks to a few months to start showing noticeable effects, especially for conditions like rheumatoid arthritis or psoriatic arthritis. While some people may feel improvements in symptoms within 4 to 6 weeks, it can take up to 12 weeks or longer for full benefits. It is important to continue taking the medication as prescribed, even if you don’t see immediate results, and to follow up with your doctor for progress monitoring.

How should I store Leflunomide?

Store Leflunomide at room temperature (20°C–25°C or 68°F–77°F), away from heat, moisture, and light. Keep it in its original container, tightly closed, and out of reach of children. Dispose of unused or expired medication as advised by your pharmacist.

What is the usual dose of Leflunomide?

Leflunomide is a medicine. The usual adult dose is 20mg once a day. Some doctors might give a bigger dose (100mg) for three days to start, but only for people who are healthy enough. If 20mg is too much, the doctor can lower it to 10mg. This information is only for adults; there's no information about how much children should take.

Warnings and Precautions

Can I take Leflunomide with other prescription drugs?

If you're taking leflunomide, a medication used to treat rheumatoid arthritis, be cautious about taking other medications that may interact with it. Leflunomide can affect how your body absorbs and uses certain medications, potentially leading to increased levels of these medications in your body. Your doctor may recommend lowering the dose of medications like rosuvastatin (used to lower cholesterol), mitoxantrone (used for cancer treatment), methotrexate (used to treat cancer and autoimmune diseases), rifampin (an antibiotic), and some cholesterol-lowering drugs (like atorvastatin, nateglinide, pravastatin, repaglinide, and simvastatin). It's important to monitor yourself closely for any signs or symptoms of increased medication exposure while taking leflunomide. If you experience any unusual effects, talk to your doctor promptly.

Can Leflunomide be taken safely while breastfeeding?

Leflunomide can pass into breast milk. It may cause serious side effects in nursing infants, so it's important to stop breastfeeding while taking this medication.

Can Leflunomide be taken safely while pregnant?

Leflunomide should not be used by pregnant women as it can harm the developing baby. It can cause birth defects and death in animal studies, even at low doses. Women of childbearing age should not start taking leflunomide without first being checked for pregnancy. They should also use effective birth control while taking it and for a period afterward. If a woman becomes pregnant while taking leflunomide, the medication should be stopped, and a special procedure should be done to remove the medication from her body as quickly as possible. This may help reduce the risk of harm to the baby.

Does Leflunomide have adverse effects?

Adverse effects, which are unwanted or harmful effects caused by a medicine, can vary in severity. For this medicine, common adverse effects might include nausea, headache, dizziness, fatigue, and dry mouth. These effects can occur in some people, but not everyone will experience them. Serious adverse effects, although rare, may include severe allergic reactions, chest pain, or difficulty breathing. These require immediate medical attention. It's important to report any new or worsening symptoms to a healthcare provider. Never stop taking a medicine without consulting a healthcare professional, as they can provide guidance on managing side effects or adjusting treatment if necessary.

Does Leflunomide have any safety warnings?

To determine if a medicine has safety warnings, first check the prescription information. Common safety warnings include allergic reactions, which occur when the immune system overreacts to the medicine, leading to symptoms like rash, itching, or swelling. Severe reactions can cause difficulty breathing. Another warning might be liver damage, which can happen if the medicine is processed by the liver. Signs include yellowing of the skin or eyes, dark urine, or severe fatigue. Additionally, some medicines can cause dizziness or drowsiness, which can increase the risk of falls or accidents. It's important to monitor for these symptoms and contact a healthcare provider if they occur.

Is it safe to drink alcohol while taking Leflunomide?

Alcohol should be consumed with caution, as it may increase the risk of liver damage when taken with leflunomide.

Is it safe to exercise while taking Leflunomide?

Yes, exercise is safe, but if you experience dizziness or fatigue, adjust accordingly. Monitor for any side effects that could affect your ability to exercise safely.

Is it safe to stop Leflunomide?

To determine if it's safe to stop a medicine, first identify its purpose. If it's for managing a chronic condition like hypertension or diabetes, stopping it might lead to worsening symptoms or complications. For medicines providing symptomatic relief, stopping might cause discomfort or a return of symptoms. If it's for a temporary condition like an infection, stopping early might lead to incomplete treatment and resistance. Some medicines can cause withdrawal symptoms or rebound effects if stopped suddenly. In some cases, abrupt discontinuation can be life-threatening. Always consult a doctor before stopping any medicine to ensure it's safe and to discuss a proper plan for discontinuation if needed.

Is Leflunomide addictive?

To determine if a medicine is addictive, we first need to know if it has habit-forming potential. If it does, this means the body can become dependent on it, which means needing more of the medicine to feel the same effects or experiencing withdrawal symptoms without it. Signs of dependence include craving the medicine, using it more often than prescribed, or feeling unable to stop using it. To prevent addiction, follow the doctor's instructions carefully, do not increase the dose on your own, and discuss any concerns with your healthcare provider. If the medicine has no known potential for addiction, it means it does not cause these issues and can be used as directed without worry of dependence.

Is Leflunomide safe for the elderly?

Leflunomide can be used in elderly patients, but caution is needed due to the increased risk of side effects like liver problems and infections. Kidney and liver function should be monitored closely.

What are the most common side effects of Leflunomide?

A side effect is an unwanted symptom caused by medical treatment. For this medicine, common side effects might include nausea, which is feeling sick to your stomach, dizziness, which is feeling lightheaded, headache, which is pain in your head, fatigue, which is feeling very tired, and dry mouth, which is when your mouth feels unusually dry. These side effects can vary in how often they occur. It's important to remember that when you start a new medicine, you might notice new symptoms. These could be unrelated to the medicine, temporary, or due to another health issue. Always talk to your healthcare provider before stopping any medicine, as they can help you manage side effects safely.

Who should avoid taking Leflunomide?

**Warnings and Precautions:** * Not for use during pregnancy or if you have severe liver problems. * Get regular blood tests (platelets, white blood cells, hemoglobin) for 6 months after starting treatment, then every 6-8 weeks. * If your blood counts drop, stop taking the medication and remove the remaining drug from your body quickly. * Rare but serious skin reactions (Stevens-Johnson syndrome, toxic epidermal necrolysis, DRESS) have been reported. Stop taking the medication and remove the remaining drug from your body quickly if these occur. * Skin ulcers may develop. If ulcers persist or worsen, stop taking the medication and remove the remaining drug from your body quickly. * Pancytopenia (low blood counts of all types), agranulocytosis (low white blood cell count), and thrombocytopenia (low platelet count) have been reported.