abstract |
The present invention relates to suspension formulations, especially those for delivering a pharmaceutically active agent in aerosol form using a spray or aerosol device, such as a pressurised metered dose inhaler (pMDI). The formulations may be for pulmonary, nasal, buccal or topical administration, but are preferably for pulmonary inhalation. The suspension fomulation comprises particles of active agent, a propellant one or more suspension stabiliser (amino acid, leucine, saccharide, disaccharide, trehalose) and/or a co-solvent (alcohol, ethanol). |