等張所需NaCl=0.9%x200ml=1.8gEphedrine=2%x200mlx0.28=>1.12g Chlorobutanol=0.5%x200mlx0.24 => 0.24g1.8-1.12-0.24=0.44
8處方中含 2% Ephedrine HCl(食鹽價為 0.28)及 0.5% ..-阿摩線上測驗