PILOT STUDY: PHARMACOKINETICS OF ORAL AND TOPICAL MOXIDECTIN IN THE RETICULATED GIRAFFE (GIRAFFA CAMELOPARDALIS).
J Zoo Wildl Med
; 48(2): 536-539, 2017 Jun.
Article
em En
| MEDLINE
| ID: mdl-28749301
The objective of this study was to obtain an estimate of the pharmacokinetic parameters of moxidectin administered at a dosage of 1 mg/kg orally and topically to healthy adult giraffe ( Giraffa camelopardalis ). The maximum plasma concentration (CMAX) of moxidectin after oral and topical administration was 69.2 ± 4.6 and 18.6 ± 16.1 ng/ml (P = 0.045), respectively. The areas under the plasma curve (AUC), a measure of total drug exposure, was 532.0 ± 232.3 and 209.1 ± 180.0 day*ng/ml (P = 0.308) for the oral and topical administrations, respectively. These data suggest moxidectin achieves higher peak plasma concentrations following oral administration compared with topical (transdermal) administration using the cattle pour-on formulation. Additionally, the percent coefficient of variation, a measure of variability, was smaller for the oral formulation (CMAX %CV = 7%; AUC %CV = 44%) compared with the topical formulation (CMAX %CV = 86%; AUC %CV = 86%). The smaller variability suggests that oral administration of moxidectin produces more predictable and less variable drug absorption than topical administration in giraffe and is the preferred route of administration.
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MEDLINE
Assunto principal:
Antílopes
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Macrolídeos
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Anti-Helmínticos
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En
Ano de publicação:
2017
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Article