]> 2026-07-31T07:52:00+00:00 WBR0371 0 en Valsartan Valsartan is an angiotensin II receptor blocker that blocks the AT1 receptor. With the use of ARB, concentrations of renin, angiotensin I, and angiotensin II are expected to be increased. Ramipril Ramipril is an ACEI that blocks the conversion of angiotensin I to angiotensin II. As such, the concentration of angiotensin I is expected to increase, while the concentration of angiotensin II will decrease with ACEI. Acebutolol Acebutolol is a beta-blocker that has a direct effect on sympathetic receptors. Beta-blockers have a small effect on the RAAS by decreasing renin secretion. Nifedipine Nifedipine is a dihydropryridine calcium channel blocker that inhibits L-type calcium channels in the peripheral blood vessels. Diltiazem Diltiazem is a non-dihydropyridine calcium channel blocker that also inhibits L-type calcium channels in the heart and in the peripheral blood vessels. Pharmacology A Gastrointestinal Renal 2020-10-28T00:19:36Z 2459150.5136111 WBR0371