COMPOSITION FOR NASAL ABSORPTION

摘要

It is intended to provide a composition for nasal administration which shows an extremely low expression ratio of side effects, quickly exerts an analgesic effect and has an excellent bioavailability, compared with preparations for oral administration. A composition for nasal absorption wherein an opiopid analgesic in an effective dose is uniformly dispersed in a carrier comprising calcium carbonate and/or calcium phosphate and having an average grain size of 500 mum or less and adhered/boded thereto.