The pharmacokinetic profiles of formoterol and beclometasone-17-monopropionate ( B17MP ; active metabolite of BDP ) were evaluated over 8 h from two independent studies comprising children ( 6-11yrs , n = 27 ) , adolescents ( 12-17 yrs , n = 28 ) and adults ( 18 yrs , n = 30 ) receiving a single , fixed dose of BDP/formoterol ( children : 200 g/24 g , adolescents and adults : 400 g/24 g ) via DPI .