Cited by 88Blood Pressure and Hypertension StudiesRenin-Angiotensin System StudiesEicosanoids and Hypertension Pharmacology

Effect of Indomethacin on Blood Pressure Lowering by Captopril and Losartan in Hypertensive Patients

Conlin, Paul R., Moore, Thomas J., Swartz, Stephen L., Barr, Eliav, Gazdick, Lisa, Fletcher, Charlena, DeLucca, Paul, Demopoulos, Laura·2000·Hypertension

Abstract

Abstract —NSAIDs are known to attenuate the effects of some antihypertensive medications. It is not known whether the new class of angiotensin II receptor antagonists is similarly affected. We conducted a multicenter study assessing the effect of indomethacin on the antihypertensive effects of losartan and captopril. After 4 weeks of placebo washout, hypertensive patients received 6 weeks of active antihypertensive therapy with either 50 mg losartan once daily (n=111) or 25 mg captopril twice daily for 1 week, which was increased to 50 mg twice daily for 5 weeks (n=105). This was followed by 1 week of concomitant therapy with indomethacin (75 mg daily). The primary outcome measure was the change in mean 24-hour ambulatory diastolic blood pressure after the addition of indomethacin. Both captopril and losartan significantly lowered ambulatory diastolic blood pressure (losartan −5.3 mm Hg, P <0.001; captopril −5.6 mm Hg, P <0.001) after 6 weeks of therapy. Indomethacin significantly attenuated the 24-hour ambulatory diastolic blood pressure for both losartan (2.2 mm Hg, P <0.05) and captopril (2.7 mm Hg, P <0.001) and also attenuated the effect of captopril on trough sitting diastolic blood pressure. Changes in daytime diastolic blood pressure (7:00 am to 11:00 pm ) were similar to the 24-hour response in both groups. Nighttime diastolic blood pressure (11:01 pm to 6:59 am ) was significantly attenuated in captopril-treated patients (2.0 mm Hg, P <0.05), but losartan was unaffected (0.4 mm Hg). Thus, concurrent treatment with indomethacin similarly attenuates the 24-hour antihypertensive response to losartan and captopril.

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Crossref · 10.1161/01.hyp.36.3.461

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  1. Salvetti A, Abdel-Haq B, Magagna A, Pedrinelli R. Indomethacin reduces the antihypertensive effect of enalapril. Clin Exp Hypertens. 1987;9: 559 -567.
  2. Moore TJ, Vollmer WM, Appel LJ, Sacks FM, Svetkey LP, Vogt TM, Conlin PR, Simons-Morton D, Carter-Edwards L, Harsha DM. Effect of dietary patterns on ambulatory blood pressure: results from the DASH study. Hypertension. 1999;34:472-477.

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Authors
Conlin, P. R., Moore, T. J., Swartz, S. L., Barr, E., Gazdick, L., Fletcher, C., DeLucca, P., & Demopoulos, L.
Affiliations
Brigham and Women's Hospital (US)
Venue
Hypertension
Published
2000-09
Volume
36
Issue
3
Pages
461-465
ISSN
  • 0194-911X (ISSN-L)
  • 1524-4563
OpenAlex
W1995194227
Cited by
88
References
21
Citations by year
2024: 1 · 2023: 1 · 2022: 2 · 2021: 1 · 2020: 3 · 2019: 3 · 2018: 2 · 2017: 7 · 2016: 2 · 2015: 5 · 2014: 3 · 2013: 7 · 2012: 6
FWCI
3.46
Type
journal article
Language
en
Open access
closed
Locations
  • Hypertension (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Eicosanoids and Hypertension Pharmacology
Keywords
indomethacin, captopril, losartan, antihypertensive drug interactions, nonsteroidal anti-inflammatory drugs, angiotensin receptor blockers, ACE inhibitors, ambulatory blood pressure, diastolic blood pressure, nocturnal blood pressure
MeSH terms
Anti-Inflammatory Agents, Non-Steroidal, Antihypertensive Agents, Blood Pressure, Captopril, Cardiovascular Agents, Circadian Rhythm, Drug Interactions, Female, Humans, Indomethacin, Male, Middle Aged, Losartan

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