Pharmacokinetic study on dry powder inhalation administration of α-asarone in rats Preparation, in vitro evaluation of excipient-free dry powder inhalation of extraction of Trollius chinensis Preparation of dry powder inhalation based on phytosomes-chitosan microspheres by spray-drying method and study on its characterization Optimal design principle and method of inhaled composite particles for complex system of Chinese materia medica Optimal design principle and method of inhaled composite particles for complex system of Chinese materia medica Effects of Chuankezhi injection on airway inflammation in mouse modelof asthma and isolated guinea-pig airway smooth muscle Clinical studies on effect of ultrasonically nebulized Houttuynia cordata on respiratory bacteria infection with inflammation Preparation of Panax notoginseng saponins-tanshinone ⅡA composite method for pulmonary delivery with spray-drying mothod and its characterization Optimized preparation of dry powder inhalation of Rehmannia glutinosa oligosaccharides by central composite design and response surface method Preparation and characterization of salvianolic acids-tanshinones composite powder for inhalation via co-micronized method Optimized preparation of dry powder inhalation of Rehmannia glutinosa oligosaccharides by central composite design and response surface method