Atenolol and Valdecoxib: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 15, 2026 · Source data updated Jul 11, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Atenolol
Valdecoxib
No brand names on record
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
Here's what's going on. Atenolol (Tenormin) helps lower your blood pressure. Valdecoxib is an anti-inflammatory (NSAID-type) medicine. When you take an NSAID alongside a blood pressure medicine like atenolol, the NSAID can make your body hold onto more fluid and sodium and can blunt how well the atenolol works. That means your blood pressure may not be controlled as well as it should be.
The good news is this is very manageable. Please don't stop either medicine on your own. Just let your pharmacist or doctor know you take both, and they can check your blood pressure a bit more closely and adjust things if needed.
Effect: Reduced antihypertensive efficacy of atenolol when combined with valdecoxib (a COX-2 selective NSAID).
Mechanism: NSAID-mediated inhibition of renal prostaglandin synthesis promotes sodium/fluid retention and attenuates beta-blocker BP lowering (PD antagonism). Neither agent's activation depends on the other.
- Direction: reduced drug effect (BP may rise)
- Onset: delayed
- Evidence: probable; documented for nonselective NSAIDs, extrapolated as a class effect
- Magnitude: variable, generally modest
Management: Monitor blood pressure when coadministration is required; individualize antihypertensive therapy if BP control worsens.
What happens
Reduced antihypertensive effect
Interaction Deep Dive
Using NSAIDs together with beta-adrenergic blockers can raise blood pressure and disrupt blood pressure management94. Such an effect has been documented with flurbiprofen (400 mg per day), ibuprofen (greater than 400 mg per day), indomethacin (greater than 50 mg per day), naproxen (1000 mg per day), and piroxicam6510. In contrast, sulindac may not counteract the antihypertensive action of beta-blockers1110. When NSAIDs and beta blockers must be given concurrently, monitor blood pressure14.
Why it happens (mechanism)
Decreased production of renal prostaglandins
How to manage this interaction
What your care team may do:
- Check your blood pressure more closely, especially after starting or stopping the NSAID.
- Adjust and individualize your atenolol or overall blood pressure plan if readings drift up.
- Consider whether the anti-inflammatory is still needed or if another option fits better.
What you can do:
- Keep taking both exactly as prescribed unless told otherwise.
- If you monitor blood pressure at home, share those numbers with your team.
- Tell your pharmacist or prescriber that you take both, and ask before adding any over-the-counter pain relievers.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
4 reports — tap to read
a) Hypertensive patients maintained on their usual medications received ibuprofen 400 mg orally every 8 hours, acetaminophen, or placebo. After the 3-week trial concluded, those given ibuprofen exhibited rises of about 6 mmHg across various blood pressure measurements. No measurable blood pressure effect was seen with acetaminophen. The proposed mechanism may involve a reduction in the efficacy of antihypertensive drugs owing to interference with the generation of vasodilator and natriuretic prostaglandins that these antihypertensive agents stimulate. A decrease in sodium excretion may have contributed to worsening the hypertension 5.
b) The influence of naproxen and sulindac on blood pressure response was investigated in 28 patients with mild to moderate essential hypertension that was well controlled by atenolol. The findings of this 5-week, double-blind, placebo-controlled study showed that 1 week of naproxen 500 mg twice daily significantly raised systolic blood pressure (mean 4 mmHg) while leaving diastolic blood pressure unchanged. One week of sulindac 200 mg twice daily changed neither blood pressure parameter 6.
c) The effects of indomethacin were assessed in 16 patients with essential hypertension who were being treated with oxprenolol. Indomethacin and oxprenolol individually, as well as the combination of both drugs, suppressed plasma renin activity. With the two drugs administered together, blood pressure fell (systolic: -5.9 mmHg; diastolic: -4 mmHg; mean: -4.6 mmHg), but these blood pressure changes were diminished by roughly 50% relative to those observed during the oxprenolol-alone phase 7.
d) In a single-blind study, giving oral naproxen 500 mg twice daily or oral sulindac 200 mg twice daily at the same time produced no effect on blood pressure control in patients with mild to moderate hypertension managed with oral propranolol 10 mg to 240 mg daily. Serum propranolol levels were not measured, and patients with preexisting renal disease, heart failure, or cirrhosis were not included 8.
Common questions
Can I take Atenolol and Valdecoxib together?
Valdecoxib can slightly reduce how well atenolol controls your blood pressure, so your care team may watch your readings more closely and adjust as needed. Keep taking both as prescribed and check in with your pharmacist or doctor. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Atenolol and Valdecoxib interaction?
It is rated moderate. Can be significant — usually manageable with monitoring.
How quickly could this interaction happen?
The documented onset is "delayed". Effects tend to build up gradually over days to weeks.
How is the Atenolol and Valdecoxib interaction managed?
What your care team may do: Check your blood pressure more closely, especially after starting or stopping the NSAID. Adjust and individualize your atenolol or overall blood pressure plan if readings drift up. Consider whether the anti-inflammatory is still needed or if another option fits better. What you can do: Keep taking both exactly as prescribed unless told otherwise. If you monitor blood pr… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "probable". Good supporting evidence, though not definitively proven.
Questions for your pharmacist
- Does my dose of Atenolol or Valdecoxib need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there anything you'd monitor while I'm on both?
References (11)
- Product Information: ZORVOLEX(R) oral capsules, diclofenac oral capsules. Iroko Pharmaceuticals, LLC (per FDA), Philadelphia, PA, 2016. DailyMed
- Product Information: ANAPROX(R) DS oral tablets, naproxen sodium oral tablets. Canton Laboratories, LLC (per FDA), Alpharetta, GA, 2016. DailyMed
- Product Information: CALDOLOR(R) intravenous injection, ibuprofen intravenous injection. Cumberland Pharmaceuticals Inc. (per FDA), Nashville, TN, 2016. DailyMed
- Product Information: COMBOGESIC(R) oral tablets, acetaminophen ibuprofen oral tablets. AFT Pharmaceuticals Inc (per FDA), Highland, MD, 2023. DailyMed
- Radack KL, Deck CC, & Bloomfield SS: Ibuprofen interferes with the efficacy of antihypertensive drugs. A randomized, double-blind, placebo-controlled trial of ibuprofen compared with acetaminophen. Ann Intern Med 1987; 107:628-635. PubMed
- Abate MA, Layne RD, Neely JL, et al: Effect of naproxen and sulindac on blood pressure response to atenolol. Drug Intell Clin Pharm 1990; 24:810-813. DOI
- Salvetti A, Arzilli F, Pedrinelli R, et al: Interaction between oxprenolol and indomethacin on blood pressure in essential hypertensive patients. Eur J Clin Pharmacol 1982; 22:197-201. DOI
- Schuna AA, Vejraska BD, Hiatt JG, et al: Lack of interaction between sulindac or naproxen and propranolol in hypertensive patients. J Clin Pharmacol 1989; 29:524-528. PubMed
- Product Information: VIMOVO(TM) delayed release oral tablets, naproxen and esomeprazole magnesium delayed release oral tablets. AstraZeneca LPW, Wilmington, DE, 2010. DailyMed
- Salvetti A, Pedrinelli R, Alberici P, et al: The influence of indomethacin and sulindac on some pharmacological actions of atenolol in hypertensive patients. Br J Clin Pharmacol 1984; 17(suppl):108S-111S. PubMed
- Abate MA, Neely JL, Layne RD, et al: Interaction of indomethacin and sulindac with labetolol. Br J Clin Pharmacol 1991; 31:363-366.
Keep reading about Atenolol
Keep reading about Valdecoxib
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