RT info:eu-repo/semantics/article T1 Bioavailability of a commercial formulation of ivermectin after subcutaneous administration to sheep A1 González, Aranzazu A1 Sahagún , Ana M. A1 Diez Liébana, María José A1 Fernández, Nélida A1 Sierra Vega, Matilde A1 García, Juan J. A2 Farmacologia K1 Ecología. Medio ambiente K1 Farmacología K1 Zoología K1 Bioavailability K1 Commercial formulation K1 Ivermectin K1 Sheep AB Objective-To evaluate bioavailability and other pharmacokinetic variables of a commercial formulation of ivermectin after IV administration to sheep.Animals-6 healthy adult sheep.Procedures-A single dose of a commercial formulation of ivermectin (200 µg/kg) wasadministered IV to each sheep. After a washout period of 3 weeks, each sheep was administered ivermectin by Se injection. Plasma samples were obtained for up to 36 andup to 42 days after IV and se administration, respectively. lvermectin concentrations werequantified by use of high-performance liquid chromatography with fluorescence detection.Results-Results obtained indicated that after IV administration, ivermectin is cleared slowly from plasma, tends to distribute and accumulate in the peripheral compartment, andis slowly eliminated from the body. After se administration, noncompartmental analysisrevealed that bioavailability of ivermectin is nearly complete (98.20%), has a slow mean absorption time of 0.96 days, and reaches a maximum plasma concentration of 19.55 ng/ ml at 3.13 days.Conclusions and Clinical Relevance-The commercial formulation of ivermectin used in this study can be administered se to sheep on the basis of a nearly complete bioavailability. Inaddition, the maximum plasma concentration and interval from se injection until maximumplasma concentration is obtained are higher than those reported by other authors who used other routes of administration. PB American Veterinary Medical Assn. YR 2015 FD 2015-08-19 LK http://hdl.handle.net/10612/4532 UL http://hdl.handle.net/10612/4532 NO American journal research, 2007, n. 68 NO P. 101-106 DS BULERIA. Repositorio Institucional de la Universidad de León RD 25-abr-2024