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. 2011 Dec 21;7:777–787. doi: 10.2147/VHRM.S17207

Table 1.

Diastolic trough-to-peak ratios of angiotensin-converting enzyme inhibitors and calcium channel blockers as administered once daily

Agent (dose) Average trough-to-peak ratio, %

More than 50% 50% Less than 50%
Angiotensin-converting enzyme inhibitors
Perindoprila (2–16 mg) ~75–100
Fosinopril (20 mg) 64
Ramipril (5 and 10 mg) 50–63
Trandolapril (1 and 2 mg) 50–100
Enalapril (5, 10, and 20 mg) 40–64
Benazeprila (20–80 mg) ~50
Quinaprila (10–80 mg) ~50
Lisinopril (10–80 mg) 30–70
Captoprilb (25–100 mg) 25
Cilazapril (2.5 and 5.0 mg) 10–80
Calcium channel blockers
Amlodipine (5–10 mg) 50–100
Lacidipine (2–6 mg) 40–100
Nifedipine Coat-Core (30 and 60 mg) 50–69
Nifedipine GITS (30 and 60 mg) 60–94
Verapamil slow-release formulations (240 mg) 45–100
Isradipine slow-release formulationsa (5, 10, 15, and 20 mg) 76–100
Diltiazem slow-release formulations (120, 240, 300, 360, and 480 mg) 20–80
Felodipine ERa (2.5, 5, 10, and 20 mg) ~40–50
Nitrendipine (10–20 mg) 10–80

Notes: Data from Zannad et al;21

a

data from prescribing information;41,4346

b

usually administered two- or three-times daily, Captopril prescribing information.42

Abbreviations: ER, extended release; GITS, gastrointestinal therapeutic system.