Drug interactions
Hydrochlorothiazide + Methyl aminolevulinate
Severity: Minor
Hydrochlorothiazide and Methyl aminolevulinate: 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
Methyl aminolevulinate is a topical photodynamic therapy agent applied to skin lesions, and hydrochlorothiazide is a systemic photosensitizer. Concurrent use could theoretically intensify phototoxic reactions at the treated site, though systemic exposure from the topical product is minimal.
What this interaction means in plain words
Hydrochlorothiazide and Methyl aminolevulinate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Possible additive photosensitization, predominantly local, with minimal systemic exposure to methyl aminolevulinate.
What to do
Counsel the patient to protect treated skin from light after illumination and monitor for exaggerated phototoxic reactions. No change in hydrochlorothiazide is usually needed.
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?
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Other interactions of Hydrochlorothiazide
Frequently asked questions
Can I take Hydrochlorothiazide with Methyl aminolevulinate?
MediHelp rates the interaction as minor. Hydrochlorothiazide and Methyl aminolevulinate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Methyl aminolevulinate is a topical photodynamic therapy agent applied to skin lesions, and hydrochlorothiazide is a systemic photosensitizer. Concurrent use could theoretically intensify phototoxic reactions at the treated site, though systemic exposure from the topical product is minimal.
How serious is the interaction between Hydrochlorothiazide and Methyl aminolevulinate?
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 protect treated skin from light after illumination and monitor for exaggerated phototoxic reactions. No change in hydrochlorothiazide is usually needed.
What other medicines interact with Hydrochlorothiazide?
MediHelp also lists interactions of Hydrochlorothiazide with, for example, Dofetilide, Amifostine, Amiodarone. The full list is on the Hydrochlorothiazide page.
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