The in vitro MT deposition of AS emitted from the Aerolizer
was determined in a realistic MT geometry (Fig. 1) for the following
formulations: the final developed submicrometer combination
powder formulation (Expt 6), the micrometer size combination
powder formulation (Expt 3), the submicrometer drug only
formulation (D-AS), and a commercial albuterol sulfate dry powder
formulation (Salbulin)