Aqueous parenteral solutions of drugs which are insoluble or only sparingly soluble in water and/or which are unstable in water, combined with cyclodextrin selected from the group consisting of hydroxypropyl, hydroxyethyl, glucosyl, maltosyl and maltotriosyl derivatives of .beta.- and .gamma.-cyclodextrin,...http://www.google.ca/patents/US5024998?utm_source=gb-gplus-sharePatent US5024998 - Pharmaceutical formulations for parenteral use