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Drug interactions

Methyl aminolevulinate + Voriconazole

Severity: Moderate

Methyl aminolevulinate and Voriconazole: 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

Voriconazole is associated with phototoxicity and photosensitivity, which could add to the photosensitizing effect of methyl aminolevulinate photodynamic therapy. Topical use limits systemic exposure but local reactions could be heightened.

What this interaction means in plain words

Methyl aminolevulinate and Voriconazole 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.

Evidence level: Low

Why it happens

Additive photosensitizing effects, which are theoretical for topical methyl aminolevulinate.

What to do

Counsel strict sun protection and watch for exaggerated local phototoxic reactions after treatment. Consider deferring photodynamic therapy if voriconazole is not essential.

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 Methyl aminolevulinate with Voriconazole?

MediHelp rates the interaction as moderate. Methyl aminolevulinate and Voriconazole 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. Voriconazole is associated with phototoxicity and photosensitivity, which could add to the photosensitizing effect of methyl aminolevulinate photodynamic therapy. Topical use limits systemic exposure but local reactions could be heightened.

How serious is the interaction between Methyl aminolevulinate and Voriconazole?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel strict sun protection and watch for exaggerated local phototoxic reactions after treatment. Consider deferring photodynamic therapy if voriconazole is not essential.

What other medicines interact with Voriconazole?

MediHelp also lists interactions of Voriconazole with, for example, Avanafil, Butabarbital, Carbamazepine. The full list is on the Voriconazole page.

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