The graph shows the average plasma concentration over time for single doses of the same dose of two different formulations of nifedipine, they were administered to the same population of human subjects on separate occasions. Which of the following best describes the key difference in formulation 2 compared with formulation 1 at the dose shown? A) Longer duration of action B) More efficacious C) More rapid elimination D] Shorter peak concentration duration E) Slower absorption
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