Drug interactions
Amlodipine-hydrochlorothiazide-valsartan + Diclofenac
Severity: Major
Amlodipine-hydrochlorothiazide-valsartan and Diclofenac: major 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
Diclofenac can reduce the antihypertensive efficacy of valsartan and hydrochlorothiazide. The combination of an NSAID, ARB and diuretic is associated with acute kidney injury, particularly in elderly or volume-depleted patients, and may also cause hyperkalemia.
What this interaction means in plain words
Amlodipine-hydrochlorothiazide-valsartan and Diclofenac can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Amlodipine-hydrochlorothiazide-valsartan belongs to Cardiovascular; Diclofenac belongs to Musculoskeletal.
Why it happens
NSAID inhibition of renal prostaglandins reduces afferent arteriolar dilation and promotes salt retention, while ARB and diuretic reduce glomerular perfusion pressure and volume.
What to do
Avoid regular NSAID use where possible and prefer paracetamol or topical options. If needed, use the lowest dose briefly, maintain hydration and monitor blood pressure, creatinine and potassium.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Amlodipine-hydrochlorothiazide-valsartan and Diclofenac, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Amlodipine-hydrochlorothiazide-valsartan
- Aliskiren + Amlodipine-hydrochlorothiazide-valsartan Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Dofetilide Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Sparsentan Contraindicated
- Aceclofenac + Amlodipine-hydrochlorothiazide-valsartan Major
- Aldesleukin + Amlodipine-hydrochlorothiazide-valsartan Major
- Amifostine + Amlodipine-hydrochlorothiazide-valsartan Major
Other interactions of Diclofenac
- Diclofenac + Ketorolac Contraindicated
- Diclofenac + Ketorolac intranasal Contraindicated
- Aceclofenac + Diclofenac Major
- Acemetacin + Diclofenac Major
- Alteplase + Diclofenac Major
- Amiloride + Diclofenac Major
Frequently asked questions
Can I take Amlodipine-hydrochlorothiazide-valsartan with Diclofenac?
MediHelp rates the interaction as major. Amlodipine-hydrochlorothiazide-valsartan and Diclofenac can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Diclofenac can reduce the antihypertensive efficacy of valsartan and hydrochlorothiazide. The combination of an NSAID, ARB and diuretic is associated with acute kidney injury, particularly in elderly or volume-depleted patients, and may also cause hyperkalemia.
How serious is the interaction between Amlodipine-hydrochlorothiazide-valsartan and Diclofenac?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid regular NSAID use where possible and prefer paracetamol or topical options. If needed, use the lowest dose briefly, maintain hydration and monitor blood pressure, creatinine and potassium.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
