Cationic analog of deoxycholate as an oral delivery carrier for ceftriaxone

Seulki Lee, Sang Kyoon Kim, Dong Yun Lee, Kyeongsoon Park, Tadiparthi Suresh Kumar, Su Young Chae, Youngro Byun

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A great number of currently available drugs and those being developed that fall under the class III of the BCS (biopharmaceutical classification system) possess high therapeutic potential but cannot be delivered by peroral absorption. In this study, we synthesized a cationic analog of deoxycholic acid and evaluated its efficacy as a potential oral drug carrier for anionic BCS class III drugs using ceftriaxone as a model drug. Cationic deoxycholylethylamine (DCEA), one of cationic analogs of deoxycholic acid, was synthesized and made into physical complexes at varied molar ratios with an anionic ceftriaxone. These drug complexes were formulated with propylene glycol and their oral bioavailabilities were evaluated. The results of the partition coefficient study revealed a highly water soluble ceftriaxone that became more hydrophobic as the molar ratio of the carrier in the complex increased. When the ceftriaxone/DCEA formulation was administered into a nonclosed segment of duodenum of rats, Cmax (the maximum drug concentration in plasma) and AUC (area under the curve) were significantly increased and its bioavailability was increased up to 70%. Therefore, the new cationic carriers proposed in this study could improve the absorption of BCS class III drugs in the intestine with maintaining their full biological activity.

Original languageEnglish (US)
Pages (from-to)2541-2548
Number of pages8
JournalJournal of Pharmaceutical Sciences
Volume94
Issue number11
DOIs
StatePublished - Nov 2005
Externally publishedYes

Keywords

  • Absorption enhancer
  • Bile acid derivative
  • Bioavailability
  • Intestinal absorption
  • Oral drug delivery

ASJC Scopus subject areas

  • Pharmaceutical Science

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