What is leflunomide 20 mg, and what is it used for?
Leflunomide 20 mg tablets are a prescription medicine used to treat certain autoimmune conditions, most commonly rheumatoid arthritis and sometimes psoriatic arthritis (depending on local prescribing guidance). It helps control disease activity by targeting the immune response.
How does leflunomide 20 mg work?
Leflunomide is an immune-modulating drug. After dosing, it is converted in the body to its active metabolite, which helps slow the processes that drive inflammation and joint damage in autoimmune arthritis.
Typical dosing of leflunomide 20 mg tablets
Dosing can vary by condition and by how the prescriber starts therapy, but many regimens use a daily 20 mg tablet as maintenance dosing. Some patients may start with a different “loading” approach to reach effective levels sooner; your prescriber’s plan should be followed exactly.
Common side effects patients ask about
Patients commonly ask about side effects such as gastrointestinal upset, hair thinning, headache, and increased blood pressure. Because leflunomide affects immune function and metabolism, clinicians also monitor liver enzymes and blood counts during treatment.
What monitoring is usually required while on leflunomide?
Regular lab monitoring is typical, including:
- Liver function tests
- Complete blood counts
Your prescriber also evaluates infection risk and other medication interactions.
Can leflunomide affect pregnancy or breastfeeding?
Yes. Leflunomide can be harmful to an unborn baby, so pregnancy planning and contraception are critical during treatment. If pregnancy is being considered or occurs, clinicians may use specific procedures to rapidly lower drug levels (often called a washout), depending on the situation.
Drug interactions and “can I take it with…” questions
Because leflunomide can interact with other medicines, it’s important to tell your clinician and pharmacist about all drugs you take, including:
- Other immune-modulating medications
- Warfarin and other anticoagulants
- Certain antibiotics and antifungals
- Medication that affects liver enzymes
What happens if a dose is missed?
If you miss a dose, follow the instructions given by your prescriber or the medication label. Many regimens advise taking it when remembered unless it is close to the next dose; do not double up without medical advice.
Is there a generic or alternative to leflunomide 20 mg?
Leflunomide is available as generic medicine in many markets. Alternatives for rheumatoid or psoriatic arthritis include other disease-modifying therapies; switching depends on disease severity, prior response, safety labs, and comorbidities.
Is leflunomide covered by patents or exclusivity?
Leflunomide has been on the market for years, so patent status can vary by country and specific formulations. DrugPatentWatch.com tracks patent and exclusivity information for medicines; if you want the exact legal status for a specific country or product listing, you can check there: DrugPatentWatch.com.
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