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Integrated control of hypertension by olmesartan medoxomil and hydrochlorothiazide and rationale for combination
1Trinity Hypertension and Metabolic Research Institute, Punzi Medical Center, Carrollton, TX, USA; Department of Family and Community Medicine, UT Southwestern Medical Center, Dallas, TX, USA.
Insights
Uncontrolled high blood pressure (hypertension) affects many Americans. Combination therapy with olmesartan medoxomil and hydrochlorothiazide offers an effective treatment strategy for managing hypertension.
Area of Science:
- Cardiology
- Pharmacology
- Nephrology
Background:
- Hypertension impacts nearly one-third of US adults, with half of treated patients not reaching target blood pressure (BP) goals.
- Uncontrolled BP elevates risks for cardiovascular events and end-organ damage.
- Antihypertensive monotherapy often proves insufficient, necessitating more aggressive treatment strategies.
Purpose of the Study:
- To review the benefits of combination therapy using olmesartan medoxomil (OM) and hydrochlorothiazide (HCTZ) for hypertension management.
- To examine the pharmacokinetic properties of OM and efficacy of OM + HCTZ.
- To provide a rationale for selecting HCTZ over chlorthalidone in combination therapy.
Main Methods:
- Review of pharmacokinetic properties of olmesartan medoxomil.
- Analysis of efficacy studies comparing OM + HCTZ combination therapy with other antihypertensive regimens.
- Discussion of clinical concerns and trends in diuretic use, specifically HCTZ versus chlorthalidone.
Main Results:
- Combination therapy targets different mechanisms of action, potentially improving tolerability and BP control.
- Evidence supports the efficacy of OM + HCTZ in achieving BP goals.
- Pharmacokinetic differences and clinical considerations inform the choice between HCTZ and chlorthalidone.
Conclusions:
- Antihypertensive combination therapy, particularly with renin-angiotensin system inhibitors like OM, is crucial for achieving BP control.
- The combination of OM and HCTZ presents a valuable therapeutic option for managing hypertension.
- Understanding pharmacokinetic and clinical factors is essential for optimizing antihypertensive treatment strategies.
Abstract:
Hypertension affects nearly one-third of all individuals in the US, yet one-half of all treated patients achieve blood pressure (BP) controlled to recommended goals. The percentage of patients with uncontrolled BP is likely to be much higher when considering the number of patients who are not even aware of their hypertensive state. Elevated BP is associated with increased risks of cardiovascular events and end-organ damage. Antihypertensive monotherapy is not always sufficient to achieve BP goals, and thus more aggressive treatment regimens need to be considered. Antihypertensive combination therapy, which may improve tolerability, offers the benefit of targeting different mechanisms of action. Numerous outcomes studies support the use of a renin-angiotensin system inhibitor as a first-line choice in antihypertensive therapy. This review discusses the benefits of combination therapy with the angiotensin type II receptor blocker olmesartan medoxomil (OM) paired with the thiazide diuretic hydrochlorothiazide (HCTZ). The pharmacokinetic properties of OM will be reviewed in addition to efficacy studies that support OM + HCTZ combination therapy over other possible antihypertensive combinations. Finally, a rationale for choosing HCTZ over another diuretic, chlorthalidone, will also be discussed based on pharmacokinetic differences, clinical concerns, and trends in use.
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