Dose administration maneuvers and patient care in tobramycin dry powder inhalation therapy

Inhalation therapy with metered-dose inhalers and dry powder inhalers in mechanically ventilated patients.

Pressurized metered-dose inhalers (pMDIs) are commonly employed for administering bronchodilator aerosols to mechanically ventilated patients. Although it is feasible to employ dry powder inhalers in ventilator circuits, the presence of humidity in the ventilator circuit could reduce their efficiency. A complex array of factors influence drug delivery from pMDIs during mechanical ventilation, a...

Particulate Interactions in Dry Powder Formulations for Inhalation Particulate Interactions in Dry Powder Formulations for Inhalation

Inhalation of a dry powder tobramycin PulmoSphere formulation in healthy volunteers.

STUDY OBJECTIVES To evaluate the efficiency and reproducibility of pulmonary delivery of an investigational tobramycin PulmoSphere formulation (PStob) [Inhale Therapeutic Systems; San Carlos, CA] by a passive dry powder inhaler, and to compare serum concentrations and whole-lung deposition with a commercial nebulized tobramycin product (TOBI; Chiron Corporation; Seattle, WA). DESIGN A five-pe...

Dry powder inhalation: past, present and future.

INTRODUCTION Early dry powder inhalers (DPIs) were designed for low drug doses in asthma and COPD therapy. Nearly all concepts contained carrier-based formulations and lacked efficient dispersion principles. Therefore, particle engineering and powder processing are increasingly applied to achieve acceptable lung deposition with these poorly designed inhalers. Areas covered: The consequences of ...

Metered-dose inhalers and dry powder inhalers in aerosol therapy.

Inhaled drug delivery is an important part of the armamentarium of clinicians caring for patients with pulmonary disease. An increasing variety of metered-dose inhalers and dry powder inhalers are becoming available. This has been driven by the development of new formulations and the impending ban on chlorofluorocarbon propellants. The result is a proliferation of devices, resulting in a confus...