Single-Pill Telmisartan and Amlodipine: A Rational Combination for the Treatment of Hypertension

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Abstract

Despite the well documented benefits conferred by adequate control of hypertension, the majority of hypertensive patients display suboptimal control and few patients achieve blood pressure (BP) levels <140/90 mmHg. As a consequence, combination therapy will be required in the majority of patients to achieve target BP. Fixed-dose combinations of antihypertensives not only simplify treatment regimens, contributing to enhanced patient adherence, they provide superior BP-lowering efficacy and an improved tolerability profile. Fixed-dose combinations have become the strategy of choice in high-risk patients or those with stage 2–3 hypertension. The combination of a renin-angiotensin system inhibitor (RASI) with a calcium channel blocker (CCB) is a first-line combination that, in addition to its antihypertensive efficacy, reduces oedema, the main adverse effect of the dihydropyridine CCB and the main factor limiting their use. In morbidity/mortality studies, this fixed-dose combination has also demonstrated superiority over a RASI combined with a diuretic. The single-pill combination of telmisartan and amlodipine has been shown to produce a dose-dependent BP-lowering effect significantly greater than that of either agent administered as monotherapy. These findings have been confirmed by ambulatory BP monitoring in patients with stage 1 and 2 hypertension, which demonstrated that single-pill telmisartan/amlodipine provides substantial 24-hour BP-lowering efficacy. A higher proportion of patients achieved 24-hour BP goals of <130/80 mm Hg on combination therapy. The superior efficacy of combination therapy has been demonstrated across a broad range of patients, including those with moderate-to-severe hypertension, diabetes mellitus and obesity. Moreover, combined use of telmisartan and amlodipine reduces the incidence of amlodipine-induced oedema, making it a preferred combination for the treatment of hypertension.

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