Amlodipine (Norvasc) is a great drug — but it takes 8 hours for the drug to reach its peak drug concentration, and about a week to reach steady-state full antihypertensive effect.
Kane SP. norvasc. ClinCalc: https://clincalc.com/blog/2013/03/using-amlodipine-responsibly-in-hospitalized-patients/. Updated September 9, 2014. Accessed December 7, 2024.