title: Potential use of 2-hydroxypropyl-beta-cyclodextrin for preparation of orally disintegrating tablets containing dl-alpha-tocopheryl acetate, an oily drug.
abstract: To expand the application of a drug in orally disintegrating tablets, the potential use of beta-cyclodextrin (beta-CyD) and 2-hydroxypropyl-beta-cyclodextrin (HP-beta-CyD) as excipients for the tablets containing dl-alpha-tocopheryl acetate (VE), an oily drug, was evaluated. HP-beta-CyD, not beta-CyD, solubilized VE in water through the formation of higher order of complexes at the molar ratio of 1 : 2 (VE : HP-beta-CyD). When prepared under the optimal preparation conditions, the VE tablets containing lactose and 5% (w/w) of HP-beta-CyD, not beta-CyD, had high hardness more than 4 kg and rapid disintegration within 100 s both in vitro and in vivo. In addition, VE tablets containing lactose and 5% (w/w) of HP-beta-CyD, not beta-CyD, maintained the high hardness and rapid disintegration under the accelerated stability test using different conditions for 4 weeks. Therefore, these results suggest the potential use of HP-beta-CyD, not beta-CyD, as an excipient for orally disintegrating tablets containing VE, an oily drug, in the molding method.
authors.affiliation: Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan.
authors.forename: Keiichi
authors.initials: K
authors.lastname: Motoyama
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Nagatomo
authors.forename: Soliman Osama
authors.initials: SO
authors.lastname: Abd Elazim
authors.forename: Fumitoshi
authors.initials: F
authors.lastname: Hirayama
authors.forename: Kaneto
authors.initials: K
authors.lastname: Uekama
authors.forename: Hidetoshi
authors.initials: H
authors.lastname: Arima
mesh_terms: D000073738:2-Hydroxypropyl-beta-cyclodextrin; D000284:Administration, Oral; D006801:Humans; D012995:Solubility; D012996:Solutions; D013500:Surface Tension; D013607:Tablets / Q000138:chemical synthesis* / Q000737:chemistry; D024505:Tocopherols / Q000008:administration & dosage / Q000737:chemistry*; D014783:Viscosity; D014867:Water / Q000737:chemistry; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D012996:Solutions; D013607:Tablets; D047392:beta-Cyclodextrins; D014867:Water; D000073738:2-Hydroxypropyl-beta-cyclodextrin; D024505:Tocopherols