- BVSc: University of Pretoria (Onderstepoort),
South Africa
- MMedVet (Pharm): University of Pretoria
- Clinical Toxicology (3rd year)
- Food Animal Medicine (3rd year)
- Clinical Pharmacokinetics (Graduate)
- Advanced Pharmacokinetics (Graduate)
- Optimization of antimicrobial dosing regimens to minimize resistance development
- Prediction of pharmacokinetics from in vitro data
- Development and use of physiologically-based pharmacokinetic models
- Ethnoveterinary medicine
Consultation to the pharmaceutical industry and academic partners on
pharmacokinetic study design, modeling and interpretation of study
results.
( PharmCATS
website )
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Gehring R, Coetzee JF, Tarus-Sang J, Apley MD Pharmacokinetics of ketamine and its metabolite norketamine administered at a sub-anesthetic dose together with xylazine to calves prior to castration. Journal of Veterinary Pharmacology and Therapeutics (In press).
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Coetzee JF, Lubbers BL, Toerber SE, Gehring R, Thomson DU, White BJ, Apley MD Comparison between plasma substance P and cortisol concentrations following castration in beef calves. American Journal of Veterinary Research 69 (6): 751-762, 2008
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Apley MD, Coetzee JF, Imerman PM, Karriker LA, Gehring R Ampicillin pharmacokinetics in swine following needle-free, intramuscular and intravenous administration. Journal of Veterinary Pharmacology and Therapeutics 30 (5): 417-421, 2007
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Abu-Basha EAH,
Gehring R,
Albwa'neh SJ. Pharmacokinetics and bioavailability of
spectinomycin after IV, IM, SC and oral administration in
broiler chickens. Journal of Veterinary Pharmacology and
Therapeutics 30 (2): 139-144, 2007
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Coetzee JF,
Gehring R,
Bettenhausen AC, Lubbers BL, Thomson DU, KuKanich B, Toerber SE
and Apley MD Mitigation of plasma cortisol response in bulls
following intravenous sodium salicylate administration prior to
castration. Journal of Veterinary Pharmacology and Therapeutics
30 (4): 305-313, 2007
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KuKanich B, Coetzee JF,
Gehring R,
Hubin M Comparative disposition of pharmacologic markers for
cytochrome P-450 mediated metabolism, glomerular filtration
rate, and extracellular and total body fluid volume of Greyhound
and Beagle dogs. Journal of Veterinary Pharmacology and
Therapeutics 30 (2): 314-319, 2007
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Apley MD, Coetzee JF, Imerman PM,
Karriker LA, Gehring R
Ampicillin pharmacokinetics in swine following needle-free,
intramuscular and intravenous administration. Journal of
Veterinary Pharmacology and Therapeutics 30 (5): 417-421, 2007
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Gart E,
Gehring R, Nagaraja A, Coetzee JF,
Narayanan S 2007 Effects of tetracycline concentrations on in
vitro transfer of resistance among
Enterococcus
isolates and between isolates of
Enterococcus
and Salmonella.
Presented at: The Merck/Merial Veterinary Scholars Program
Symposium, Bethesda, MD, August 2-4
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