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Drug interactions

Teriflunomide + Tretinoin

Severity: Moderate

Teriflunomide and Tretinoin: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Tretinoin is partly metabolized by CYP2C8, which teriflunomide inhibits, so retinoid exposure may increase. Both drugs are teratogenic and can affect the liver.

What this interaction means in plain words

Teriflunomide and Tretinoin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Teriflunomide belongs to Central Nervous System; Tretinoin belongs to Dermatology.

Evidence level: Low

Why it happens

Inhibition of CYP2C8 by teriflunomide may reduce tretinoin clearance.

What to do

Monitor liver enzymes and retinoid toxicity, and maintain strict contraception for both drugs.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Teriflunomide with Tretinoin?

MediHelp rates the interaction as moderate. Teriflunomide and Tretinoin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Tretinoin is partly metabolized by CYP2C8, which teriflunomide inhibits, so retinoid exposure may increase. Both drugs are teratogenic and can affect the liver.

How serious is the interaction between Teriflunomide and Tretinoin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor liver enzymes and retinoid toxicity, and maintain strict contraception for both drugs.

What other medicines interact with Teriflunomide?

MediHelp also lists interactions of Teriflunomide with, for example, Ifosfamide, Lomustine, Amiodarone. The full list is on the Teriflunomide page.

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