Interferon Beta-1a and Leflunomide: High risk - avoid combining interaction. Avoid combining these medicines. High risk. Avoid taking Interferon Beta-1a with Leflunomide unless your pharmacist or doctor approves.

Drug InteractionHigh Risk - AvoidAI-VerifiedCategory · general

Can I take Interferon Beta-1a with Leflunomide?

Interferon Beta-1a and Leflunomide should not be combined without explicit medical guidance.

Brand names: Leflunomide - Arava (US)

Interferon Be…MEDICINE ALeflunomideMEDICINE B
Avoid combining
Do not combine

Quick verdict

No - avoid combining Interferon Beta-1a with Leflunomide.

High Risk - Avoid. Do not combine.

Ask GoDavaii AI about this combination

Is it safe to take Interferon Beta-1a with Leflunomide? Explain the interaction, what to watch for, and safer timing.

Interaction text from an FDA label for a product containing Leflunomide (not specific to Interferon Beta-1a)

General label text, not a pair-specific study

Following oral administration, leflunomide is metabolized to an active metabolite, teriflunomide, which is responsible for essentially all of leflunomide's in vivo activity. Drug interaction studies have been conducted with both leflunomide and with its active metabolite, teriflunomide, where the metabolite was directly administered to the test subjects.

This is general interaction text from the label of a product that contains Leflunomide. It does not mention Interferon Beta-1a, so it does not show how Interferon Beta-1a and Leflunomide affect each other. The verdict above comes from the GoDavaii interaction dataset. Ask your pharmacist to check both medicines' labels before you combine them.

Questions to ask your pharmacist

  • Does Interferon Beta-1a change how Leflunomide works, or the other way round?
  • Should I take Interferon Beta-1a and Leflunomide at different times of day?
  • Which side effects should I watch for while taking both?
  • Is there a better option if this combination does not suit me?

Why to Avoid

Simple rules that protect you

  • Always tell your doctor/pharmacist about ALL medicines you take - prescriptions, OTC, supplements, and herbal products.
  • Keep a current medicine list with doses and timings - photo on your phone is enough.
  • Read medicine labels for timing (with food / empty stomach) before combining.
  • Do NOT combine Interferon Beta-1a with Leflunomide without explicit doctor approval.
  • Use GoDavaii AI to double-check before adding any new medicine, supplement, or desi ilaaj.

If you've already taken both medicines and feel unwell (unusual bleeding, severe stomach pain, confusion, breathing issues), get medical help now.

Emergency · 112
AI-Verified · Cross-checked against 93,000+ interaction database

Not medical advice

Individual responses vary based on dose, timing, health conditions, and other medicines. Always consult your doctor or pharmacist before combining medicines. For emergencies, call 112.

Source

FDA drug label for Leflunomide (via openFDA). View source ↗

General label text for Leflunomide; not a pair-specific study.

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