TY - JOUR EP - 354 A1 - Mustafa A., Al-Jumaili A1 - Nibras N., Al-Abbass A1 - Orooba M., S. Ibrahim SP - 349 Y1 - 2024/09/25/ N2 - Ceftazidime is a beta-lactam that is used in the treatment of bacterial infections in humans and companion animals, such as dogs and cats. It is prescribed to treat gram-negative infections, especially those caused by Pseudomonas aeruginosa. This study aimed to compare the pharmacokinetics of ceftazidime using a microbiological assay to evaluate the adequacy of the proposed dosage regimens for susceptible gram-negative bacteria. For this purpose, five healthy mongrel male dogs, with a mean age of four years and an average weight of 19.1 kg, were administered a single intravenous bolus dose of ceftazidime (20 mg/kg). Plasma concentrations were measured using a microbiological assay, and dosage regimens were established by integrating pharmacokinetics data with pharmacodynamics parameters. The results showed that ceftazidime was rapidly distributed to the peripheral tissues (0.189 L/kg), with a half-life of 1.15 hours and a clearance rate of 0.166 L/hr./kg. The results obtained from the pharmacokinetics-pharmacodynamic integration suggested 20 mg/kg q8 hours of ceftazidime for susceptible gram-negative bacteria with a Minimum Inhibitory Concentration of ? 8 µg/ml, and 20 mg /kg q12 hours of ceftazidime for susceptible gram-negative bacteria with a Minimum Inhibitory Concentration of ? 4 µg/ml. In conclusion, a mild correlation was observed between the dogs? weight and the ceftazidime half-life, which led to an adjustment of the proposed dosage regimen to 20 mg/kg q8 hours. VL - 14 UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85206327616&origin=resultslist&sort=plf-f&src=s&sid=d1cddfd490a93522df08bf7f6d0da4f3&sot=a&sdt=a&s=SOURCE-ID+%2821100842862%29AND%28%28+PUBYEAR+%3D+2024%29+OR+%28+PUBYEAR+%3D+2023%29+OR+%28+PUBYEAR+%3D+2022%29+OR+%28+PUBYEAR+%3D+2021%29%29AND+%28%28++DOCTYPE+%28+ar+%29++OR++DOCTYPE+%28+re+%29++OR++DOCTYPE+%28+cp+%29++OR++DOCTYPE+%28+dp+%29++OR++DOCTYPE+%28+ch+%29++%29+AND+NOT+DOCTYPE+%28+undefined+%29%29+AND++NOT+PUBSTAGE+%28+aip+%29++&sl=272&sessionSearchId=d1cddfd490a93522df08bf7f6d0da4f3&relpos=6 KW - Ceftazidime KW - Dog KW - Dosage regimen KW - Gram-negative microbe KW - Pharmacokinetic ID - eprints1243 SN - 2322-4568 TI - The Pharmacokinetics of Ceftazidime Following its Intravenous Administration in Dogs IS - 3 AV - public JF - World's Veterinary Journal PB - SCIENCELINE ER -