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  • Title: [Pharmacokinetics and clinical studies on ceftriaxone in the field of obstetrics and gynecology].
    Author: Cho N, Watanabe H, Yoshida K, Moriyama S, Takeda H, Tsukamoto A, Fukunaga K, Kunii K, Komoriyama Y.
    Journal: Jpn J Antibiot; 1984 Dec; 37(12):2304-19. PubMed ID: 6098723.
    Abstract:
    Ceftriaxone (Ro 13-9904, CTRX), a new cephem antibiotic, was studied in the field of obstetrics and gynecology, and the following results were obtained. The absorption and tissue penetration of CTRX into intrapelvic genital organs were good. The peak serum level in the uterine artery after a single intravenous injection and that after an intravenous drip infusion for 30 approximately 60 minutes, both with 1 g, were 162.5 micrograms/ml and 84.4-93.8 micrograms/ml, respectively. High concentrations were obtained also in genital organ tissues; the maximum concentration was 93.8 micrograms/g by intravenous injection and 56.3-59.4 micrograms/g by intravenous drip infusion. Changes in the tissue concentration were similar to those in the serum, the level over MIC80 against main pathogenic organisms being maintained for a long time. The penetration of CTRX into intrapelvic dead space exudate was good. The level reached a peak of 18.8 micrograms/ml 2 hours after an intravenous injection with 1 g and 13.3 micrograms/ml after 12 hours, while the level over MIC80 against main pathogenic organisms was maintained for a long time. CTRX was effective in 15 out of 16 cases (93.8%) with gyneco-obstetric infections such as intrauterine, intrapelvic, adnexal infections, and postoperative would infections, administered with 1 g twice a day. No side effects were observed.
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