COMPOSIZIONI PER IL RILASCIO POLMONARE DI ANTAGONISTI MUSCARINICI AD AZIONE PROLUNGATA E DI AGONISTI DEL RECETTORE ADRENERGICO BETA 2 AD AZIONE PROLUNGATA E METODI E SISTEMI ASSOCIATI

摘要

Compositions, methods and systems are provided for pulmonary or nasal delivery of active agents via a metered dose inhaler. In one embodiment, the compositions include a suspension medium, active agent particles, and suspending particles, in which the active agent particles and suspending particles form a co-suspension within the suspension medium.