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- Title
Pharmacokinetics of doxycycline hyclate in pigs with a new feed premix formulation.
- Authors
Zermeño‐Acosta, Mónica; Sumano, Héctor; Villar, Jorge Luna‐del; Bernad, Maria Josefa; Gutiérrez, Lilia
- Abstract
This study aimed to evaluate the administration of doxycycline hyclate in a long‐acting pharmaceutical preparation in pigs when administered either ad libitum as a feed medication or an oral bolus dose. In all instances, the studied dose was 20 mg/kg b.w. A total of 48 healthy crossbred, castrated male pigs (Landrace‐Yorkshire) weighing 23 ± 4.3 kg were included in this trial. They were randomly assigned to six groups as follows: two groups for the experimental prototype 1 of doxycycline hyclate administering it ad libitum (Fad‐lib) or as forced bolus (Fbolus); two groups for the experimental prototype 2 of doxycycline hyclate as for the former groups (FCad‐lib and FCbolus), and two control groups receiving the same dose of doxycycline hyclate, but of a commercial premix, also as previously explained (Cbolus and Cad‐lib). Statistical analysis of the mean pharmacokinetic values was carried out with Kruskal–Wallis and Dunn's tests. The relative bioavailability (Fr) of the best prototype, when administered ad libitum (FCad‐lib), was five times larger than the reference group (Cadlib). These results allow the proposal that the referred differences achieved in the presented prototypes can mark a notable clinical difference, particularly in pathogens with some resistance.
- Subjects
DOXYCYCLINE; ORAL medication; PHARMACOKINETICS; SWINE; BOLUS drug administration
- Publication
Journal of Veterinary Pharmacology & Therapeutics, 2024, Vol 47, Issue 2, p107
- ISSN
0140-7783
- Publication type
Article
- DOI
10.1111/jvp.13419