Angiotensin II-Receptor Antagonists: An Overview

Raquel Dina and Mahtab Jafari

Am J Health Syst Pharm. 2000;57(13)

Conclusion

Angiotensin-II-receptor antagonists are well tolerated and are as effective as ACE inhibitors in decreasing blood pressure. Currently, AT-II-receptor antagonists are used either as monotherapy in patients who cannot tolerate ACE inhibitors or in combination with hydrochlorothiazide or other antihypertensive agents.

^[a] Valsartan data on file. Novartis, East Hanover, NJ; 1996.

^[b] Chando TJ, Everett DW, Kahle AD et al. Biotransformation of irbesartan in man. Data on file. Bristol-Myers Squibb, Princeton, NJ; 1997.

^[c] Telmisartan data on file. Boehringer Ingelheim, Ridgefield, CT; 1998.

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Reprint Address

Address reprint requests to Ms. Dina at 680 Mira Monte Place, Pasadena, CA 91101, or to raqueldina@aol.com.

Cite this: Angiotensin II-Receptor Antagonists: An Overview - Medscape - Jul 01, 2000.

Table 1. Comparison of Angiotensin II-Receptor Antagonists
Drug	Active Metabolite	Bioavailability (%)	Daily Dose (mg)	Half-life (hr)	Cost ($)a
Losartan	Yes	33	25-100	2 (losartan) 6-9 (EXP-3174)	38
Valsartan	No	25	80-320	6	36
Irbesartan	No	60-80	150-300	11-15	36
Candesartan	No	42	8-32	3-4 3-11	36
Eprosartan	No	13	600-800	5-9	37
Telmisartan	No	42-58	20-80	24	39

a Estimated cost, based on average wholesale price (Drug Topics Red Book, 1999), to the pharmacist for a one-month supply at the usual starting dosage.

Table 2. Clinical Trials Comparing Angiotensin-II-Receptor Antagonists with Angiotensin-Converting-Enzyme Inhibitors a
a	Losartan dosages are expressed in terms of losartan potassium, and candesartan dosages are expressed in terms of candesartan cilexetil. BP = blood pressure, SBP = systolic blood pressure, DBP = diastolic blood pressure, NR = not reported, HCTZ = hydrochlorothiazide.
b	Primary efficacy variable was assessed after eight weeks of therapy.

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Angiotensin II-Receptor Antagonists: An Overview

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