Drug interactions
Dexamethasone + Hydrochlorothiazide-valsartan
Severity: Moderate
Dexamethasone and Hydrochlorothiazide-valsartan: 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
Both agents promote renal potassium loss, so combined use can produce hypokalemia, with possible arrhythmia and muscle weakness. Corticosteroids may also raise blood pressure and blood glucose, opposing the thiazide.
What this interaction means in plain words
Dexamethasone and Hydrochlorothiazide-valsartan 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.
Dexamethasone belongs to Endocrine; Hydrochlorothiazide-valsartan belongs to Cardiovascular.
Why it happens
Additive renal potassium wasting; corticosteroid-induced fluid retention and hyperglycemia oppose thiazide effects.
What to do
Monitor serum potassium and replace if low, particularly during prolonged or high-dose steroid therapy. Review blood pressure and glucose control.
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?
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Other interactions of Hydrochlorothiazide-valsartan
- Aliskiren + Hydrochlorothiazide-valsartan Contraindicated
- Dofetilide + Hydrochlorothiazide-valsartan Contraindicated
- Hydrochlorothiazide-valsartan + Sparsentan Contraindicated
- Aldesleukin + Hydrochlorothiazide-valsartan Major
- Amifostine + Hydrochlorothiazide-valsartan Major
- Amiloride + Hydrochlorothiazide-valsartan Major
Other interactions of Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Frequently asked questions
Can I take Dexamethasone with Hydrochlorothiazide-valsartan?
MediHelp rates the interaction as moderate. Dexamethasone and Hydrochlorothiazide-valsartan 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. Both agents promote renal potassium loss, so combined use can produce hypokalemia, with possible arrhythmia and muscle weakness. Corticosteroids may also raise blood pressure and blood glucose, opposing the thiazide.
How serious is the interaction between Dexamethasone and Hydrochlorothiazide-valsartan?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum potassium and replace if low, particularly during prolonged or high-dose steroid therapy. Review blood pressure and glucose control.
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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