Drug interactions
Labetalol + Parecoxib
Severity: Moderate
Labetalol and Parecoxib: 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 such as parecoxib can blunt the blood pressure lowering effect of beta-blockers, especially with sustained use. Fluid retention and reduced renal prostaglandin activity contribute to the loss of control. Renal function may also be affected in susceptible patients.
What this interaction means in plain words
Labetalol and Parecoxib 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
Inhibition of prostaglandin synthesis causes sodium and water retention and opposes the antihypertensive effect of labetalol.
What to do
Monitor blood pressure when parecoxib is given for more than a few days and adjust the antihypertensive regimen if needed. Use the lowest effective NSAID dose for the shortest time and monitor renal function in at-risk patients.
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 Labetalol
- Amifostine + Labetalol Major
- Amiodarone + Labetalol Major
- Atenolol-chlorthalidone + Labetalol Major
- Atenolol + Labetalol Major
- Betaxolol + Labetalol Major
- Bisoprolol + Labetalol Major
Frequently asked questions
Can I take Labetalol with Parecoxib?
MediHelp rates the interaction as moderate. Labetalol and Parecoxib 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 such as parecoxib can blunt the blood pressure lowering effect of beta-blockers, especially with sustained use. Fluid retention and reduced renal prostaglandin activity contribute to the loss of control. Renal function may also be affected in susceptible patients.
How serious is the interaction between Labetalol and Parecoxib?
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 when parecoxib is given for more than a few days and adjust the antihypertensive regimen if needed. Use the lowest effective NSAID dose for the shortest time and monitor renal function in at-risk patients.
What other medicines interact with Labetalol?
MediHelp also lists interactions of Labetalol with, for example, Amifostine, Amiodarone, Atenolol-chlorthalidone. The full list is on the Labetalol page.
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