Drug interactions
Meclofenamic acid + Methyclothiazide
Severity: Moderate
Meclofenamic acid and Methyclothiazide: 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
NSAIDs can reduce the antihypertensive and diuretic effects of thiazide diuretics by inhibiting renal prostaglandins and promoting sodium and fluid retention. In volume-depleted or elderly patients the combination also increases the risk of acute kidney injury.
What this interaction means in plain words
Meclofenamic acid and Methyclothiazide 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.
Why it happens
NSAID inhibition of renal prostaglandin synthesis reduces renal perfusion and sodium excretion, opposing thiazide effect.
What to do
Monitor blood pressure, renal function and electrolytes, and ensure adequate hydration. Use the lowest effective NSAID dose for the shortest time.
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 Meclofenamic acid
- Ketorolac intranasal + Meclofenamic acid Contraindicated
- Ketorolac + Meclofenamic acid Contraindicated
- Aceclofenac + Meclofenamic acid Major
- Acemetacin + Meclofenamic acid Major
- Alteplase + Meclofenamic acid Major
- Amiloride + Meclofenamic acid Major
Frequently asked questions
Can I take Meclofenamic acid with Methyclothiazide?
MediHelp rates the interaction as moderate. Meclofenamic acid and Methyclothiazide 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. NSAIDs can reduce the antihypertensive and diuretic effects of thiazide diuretics by inhibiting renal prostaglandins and promoting sodium and fluid retention. In volume-depleted or elderly patients the combination also increases the risk of acute kidney injury.
How serious is the interaction between Meclofenamic acid and Methyclothiazide?
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 blood pressure, renal function and electrolytes, and ensure adequate hydration. Use the lowest effective NSAID dose for the shortest time.
What other medicines interact with Meclofenamic acid?
MediHelp also lists interactions of Meclofenamic acid with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Meclofenamic acid page.
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