Pharmacokinetics of Ro 13-9904, a broad-spectrum cephalosporin. 1980

M Seddon, and R Wise, and A P Gillett, and R Livingston

The pharmacokinetics of the new cephalosporin Ro-13-9904 were studied in six healthy male volunteers receiving a 500-mg dose as a bolus intravenously. Tissue penetration of the antibiotic was estimated by using a cantharides blister method. The data obtained fitted a two-compartment open model. The mean elimination half-life was about 8 h, which is considerably longer than that of other beta-lactam compounds. The distribution volume was 4.3 liters in the central compartment. Levels of Ro 13-9904 in blister fluid exceeded those in serum after 6.5 h. Approximately 60% of the antibiotic was excreted in the urine.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D008657 Metabolic Clearance Rate Volume of biological fluid completely cleared of drug metabolites as measured in unit time. Elimination occurs as a result of metabolic processes in the kidney, liver, saliva, sweat, intestine, heart, brain, or other site. Total Body Clearance Rate,Clearance Rate, Metabolic,Clearance Rates, Metabolic,Metabolic Clearance Rates,Rate, Metabolic Clearance,Rates, Metabolic Clearance
D002443 Ceftriaxone A broad-spectrum cephalosporin antibiotic and cefotaxime derivative with a very long half-life and high penetrability to meninges, eyes and inner ears. Benaxona,Cefatriaxone,Cefaxona,Ceftrex,Ceftriaxon,Ceftriaxon Curamed,Ceftriaxon Hexal,Ceftriaxona Andreu,Ceftriaxona LDP Torlan,Ceftriaxone Irex,Ceftriaxone Sodium,Ceftriaxone Sodium, Anhydrous,Ceftriaxone, Disodium Salt,Ceftriaxone, Disodium Salt, Hemiheptahydrate,Lendacin,Longacef,Longaceph,Ro 13-9904,Ro-13-9904,Ro13-9904,Rocefalin,Rocefin,Rocephin,Rocephine,Tacex,Terbac,Anhydrous Ceftriaxone Sodium,Ro 13 9904,Ro 139904,Ro13 9904,Ro139904
D002511 Cephalosporins A group of broad-spectrum antibiotics first isolated from the Mediterranean fungus ACREMONIUM. They contain the beta-lactam moiety thia-azabicyclo-octenecarboxylic acid also called 7-aminocephalosporanic acid. Antibiotics, Cephalosporin,Cephalosporanic Acid,Cephalosporin,Cephalosporin Antibiotic,Cephalosporanic Acids,Acid, Cephalosporanic,Acids, Cephalosporanic,Antibiotic, Cephalosporin,Cephalosporin Antibiotics
D006207 Half-Life The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity. Halflife,Half Life,Half-Lifes,Halflifes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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