Amlodipine versus Angiotensin-Receptor Blockers for Nonhypertension Indications

OBJECTIVE: To review the efficacy and safety data of amlodipine and the angiotensin-receptor blockers (ARBs), focusing on heart failure, angina, percutaneous coronary intervention (PCI), and renal protection. DATA SOURCE: A MEDLINE search (1966-December 2001) was completed using amlodipine, angiotensin-receptor antagonist, losartan, valsartan, candesartan, and telmisartan as key words. English-language articles were identified and included. STUDY SELECTION AND DATA EXTRACTION: All identified articles were evaluated. Articles representative of the subject matter of our review were included. DATA SYNTHESIS: Amlodipine and the ARBs lower blood pressure to a similar extent. Amlodipine is an effective antianginal agent, whereas ARBs are not. However, amlodipine is not effective in the treatment of heart failure; ARBs may be useful in this setting. ARBs are also effective in preserving renal function and may provide some protection from restenosis in patients who have had a PCI. The ARBs may also be useful in preventing both diabetic and nondiabetic nephropathy. CONCLUSIONS: Concomitant disease states should be considered when choosing between an ARB and amlodipine for the management of hypertension.