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Drug interactions

Hydrochlorothiazide-telmisartan + Nafcillin

Severity: Minor

Hydrochlorothiazide-telmisartan and Nafcillin: 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

Thiazides and penicillins are both eliminated by renal tubular secretion, so competition could modestly raise levels of either. Clinical impact is likely small, and nafcillin is eliminated largely through the liver.

What this interaction means in plain words

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

Evidence level: Low

Why it happens

Possible competition for renal tubular anionic secretion.

What to do

No routine adjustment is needed; monitor clinically for adverse effects during prolonged therapy.

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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Frequently asked questions

Can I take Hydrochlorothiazide-telmisartan with Nafcillin?

MediHelp rates the interaction as minor. Hydrochlorothiazide-telmisartan and Nafcillin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Thiazides and penicillins are both eliminated by renal tubular secretion, so competition could modestly raise levels of either. Clinical impact is likely small, and nafcillin is eliminated largely through the liver.

How serious is the interaction between Hydrochlorothiazide-telmisartan and Nafcillin?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment is needed; monitor clinically for adverse effects during prolonged therapy.

What other medicines interact with Hydrochlorothiazide-telmisartan?

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

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