BIMODAL DRY POWDER FORMULATION FOR INHALATION

摘要

There is described a bimodal pharmaceutical composition comprising effective amounts of a first active ingredient which substantially comprises a coarse fraction and a second active ingredient which substantially comprise a fine fraction characterized in that the coarse fraction possesses a greater mass median aerodynamic diameter than the fine fraction. There is also described a method of delivering a therapeutically effective amount of a substantially fine active ingredient to the lung of a patient by co-administration with a substantially coarse active ingredient.