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Drug interactions

Amlodipine-hydrochlorothiazide-valsartan + Methoxsalen

Severity: Moderate

Amlodipine-hydrochlorothiazide-valsartan and Methoxsalen: 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

Hydrochlorothiazide is photosensitizing and may add to the phototoxic effects of methoxsalen with UV exposure, increasing the risk of burns.

What this interaction means in plain words

Amlodipine-hydrochlorothiazide-valsartan and Methoxsalen 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.

Amlodipine-hydrochlorothiazide-valsartan belongs to Cardiovascular; Methoxsalen belongs to Anti Fungals.

Evidence level: Low

Why it happens

Additive photosensitizing effects of both agents.

What to do

Counsel on strict UV protection and monitor skin response during PUVA therapy, adjusting UV dose if exaggerated reactions occur.

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 Amlodipine-hydrochlorothiazide-valsartan with Methoxsalen?

MediHelp rates the interaction as moderate. Amlodipine-hydrochlorothiazide-valsartan and Methoxsalen 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. Hydrochlorothiazide is photosensitizing and may add to the phototoxic effects of methoxsalen with UV exposure, increasing the risk of burns.

How serious is the interaction between Amlodipine-hydrochlorothiazide-valsartan and Methoxsalen?

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 on strict UV protection and monitor skin response during PUVA therapy, adjusting UV dose if exaggerated reactions occur.

What other medicines interact with Amlodipine-hydrochlorothiazide-valsartan?

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

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