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Drug interactions

Cannabidiol + Isotretinoin

Severity: Minor

Cannabidiol and Isotretinoin: minor 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

Cannabidiol may inhibit CYP2C8, which participates in isotretinoin metabolism. Isotretinoin exposure could increase, potentially intensifying dose-related adverse effects such as dryness, hypertriglyceridemia and hepatic enzyme elevation.

What this interaction means in plain words

Cannabidiol and Isotretinoin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Cannabidiol belongs to Central Nervous System; Isotretinoin belongs to Dermatology.

Evidence level: Low

Why it happens

Possible inhibition of CYP2C8-mediated isotretinoin metabolism by cannabidiol.

What to do

Monitor for isotretinoin adverse effects and consider checking lipids and liver enzymes; reduce the isotretinoin dose if toxicity appears.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Cannabidiol with Isotretinoin?

MediHelp rates the interaction as minor. Cannabidiol and Isotretinoin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Cannabidiol may inhibit CYP2C8, which participates in isotretinoin metabolism. Isotretinoin exposure could increase, potentially intensifying dose-related adverse effects such as dryness, hypertriglyceridemia and hepatic enzyme elevation.

How serious is the interaction between Cannabidiol and Isotretinoin?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for isotretinoin adverse effects and consider checking lipids and liver enzymes; reduce the isotretinoin dose if toxicity appears.

What other medicines interact with Isotretinoin?

MediHelp also lists interactions of Isotretinoin with, for example, Demeclocycline, Minocycline, Oxytetracycline. The full list is on the Isotretinoin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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