Pharmacokinetics of ritipenem acoxil

Noriaki Ono, Ryuji Fujita, Toyohiko Watanabe, Tadasu Takenaka, Kouichi Monden, Satoshi Uno, Koushi Sakuramoto, Toshihide Hayashi, Kazuhiro Hata, Yoshitsugu Nasu, Masaya Tsugawa, Hiromi Kumon, Hiroyuki Ohmori, Shin Irie, Tetsuzo Kaneshige

Research output: Contribution to journalArticlepeer-review


Ritipenem acoxil (RIPM-AC) is a new oral penem antibiotic. We investigated the pharmacokinetics of RIPM-AC and cefotiam hexetil (CTM-HE) by the cross-over method. The pharmacokinetics of RIPM-AC and CTM-HE, each orally administrated at a dose of 200 mg, were compared in healthy male volunteers. The Cmax values of ritipenem (RIPM) and cefotiam (CTM) were 2.09μgg/ml and 2.85μg/ml, respectively. The T1/2 of RIPM and CTM were 0.56 h and 0.71 h, and the AUC0-12 values were 2.10 μg·h/ml and 4.99 μg·h/ml. The mean urinary recovery rates of RIPM and CTM up to 12 h after a single oral administration were 11.3% and 38.9%.

Original languageEnglish
Pages (from-to)286-291
Number of pages6
JournalJapanese Journal of Chemotherapy
Publication statusPublished - Jan 1 1995


  • cefoiam hexetil
  • ritipenem acoxil

ASJC Scopus subject areas

  • Pharmacology
  • Pharmacology (medical)


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