A peptide proteinaceous drug nasal powder composition containing (i) an absorption accelerant comprised of a compound, or its salt, having in its molecule a group expressed by the formula (I): ##STR1## wherein, ##STR2## indicates a cyclohexane ring or a benzene ring which may be substituted at least...http://www.google.com.au/patents/US5578324?utm_source=gb-gplus-sharePatent US5578324 - Peptide proteinaceous drug nasal powder composition
