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Drug interactions

Hydrochlorothiazide-valsartan + Verteporfin

Severity: Minor

Hydrochlorothiazide-valsartan and Verteporfin: 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

Hydrochlorothiazide is photosensitizing and may add to the phototoxic potential of verteporfin after photodynamic therapy. The risk is mainly skin photosensitivity reactions in the days after treatment.

What this interaction means in plain words

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

Hydrochlorothiazide-valsartan belongs to Cardiovascular; Verteporfin belongs to Miscellaneous.

Evidence level: Low

Why it happens

Additive photosensitizing effects.

What to do

Counsel the patient to avoid direct sunlight and bright indoor light on exposed skin for the period advised in the verteporfin labeling.

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 Hydrochlorothiazide-valsartan with Verteporfin?

MediHelp rates the interaction as minor. Hydrochlorothiazide-valsartan and Verteporfin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Hydrochlorothiazide is photosensitizing and may add to the phototoxic potential of verteporfin after photodynamic therapy. The risk is mainly skin photosensitivity reactions in the days after treatment.

How serious is the interaction between Hydrochlorothiazide-valsartan and Verteporfin?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel the patient to avoid direct sunlight and bright indoor light on exposed skin for the period advised in the verteporfin labeling.

What other medicines interact with Hydrochlorothiazide-valsartan?

MediHelp also lists interactions of Hydrochlorothiazide-valsartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-valsartan page.

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