API;"API steady-state flux, Is, mg/cm2h";"Time of diffusion delay, Θ, min";"Permeability coefficient, Кр, cm/h";"Linear correlation coefficient, r" Nifedipine;0,7083;"– 3,06";0,075;0,9997 "Amlodipine besylate";1,1295;3,28;0,124;0,9999