Drug interactions
Parecoxib + Prazosin
Severity: Minor
Parecoxib and Prazosin: 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
NSAIDs such as parecoxib can reduce the blood pressure lowering effect of antihypertensives through sodium and water retention and reduced vasodilatory prostaglandins. The effect with alpha-blockers is usually smaller than with ACE inhibitors or diuretics.
What this interaction means in plain words
Parecoxib and Prazosin 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
Inhibition of prostaglandin synthesis leading to fluid retention and vasoconstriction, partly opposing antihypertensive action.
What to do
Check blood pressure if parecoxib is used for more than a short period. Adjust antihypertensive therapy if control worsens.
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 Prazosin
- Alfuzosin + Prazosin Major
- Amifostine + Prazosin Major
- Avanafil + Prazosin Major
- Doxazosin + Prazosin Major
- Dutasteride-tamsulosin + Prazosin Major
- Phenoxybenzamine + Prazosin Major
Frequently asked questions
Can I take Parecoxib with Prazosin?
MediHelp rates the interaction as minor. Parecoxib and Prazosin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. NSAIDs such as parecoxib can reduce the blood pressure lowering effect of antihypertensives through sodium and water retention and reduced vasodilatory prostaglandins. The effect with alpha-blockers is usually smaller than with ACE inhibitors or diuretics.
How serious is the interaction between Parecoxib and Prazosin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check blood pressure if parecoxib is used for more than a short period. Adjust antihypertensive therapy if control worsens.
What other medicines interact with Prazosin?
MediHelp also lists interactions of Prazosin with, for example, Alfuzosin, Amifostine, Avanafil. The full list is on the Prazosin page.
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