Detection of reserpine in horses by high-performance liquid chromatography |
| |
| Authors: | CB CHAPMAN P COURAGE PJ HUNTINGTON† |
| |
| Institution: | *Victorian College of Pharmacy Ltd, 381 Royal Pde, Parkville, Victoria 3052;?Department of Agriculture &Rural Affairs, Victorian Institute of Animal Science, 475 Mickleham Rd, Atlwood, Victoria 3049 |
| |
| Abstract: | SUMMARY A high-performance liquid chromatography (HPLC) assay was developed for the detection of reserpine. The assay was used to monitor the plasma concentrations of the drug given intramuscularly on one or two occasions to five horses. The blood concentrations of reserpine varied quite considerably between horses given the same dose of the drug. However, on average, reserpine could be detected consistently, and quantified, for 48 h after a single dose of 2.5 mg, and for a similar period after the second of two 2.5 mg doses given 13 d apart. Because of the apparently large variability in the pharmacokinetics of reserpine in horses, exact times cannot be given beyond which the drug will no longer be detectable in the plasma. However, following two doses of 2.5 mg reserpine given 13 d apart, at least 7 d must elapse after the second dose before there is no drug detectable in the plasma of most horses. |
| |
| Keywords: | |
|
|
