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The effects of time and method of administration of rifampin with respect to feeding were evaluated in five mature horses. There was a significant (P less than or equal to 0.05) delay in time of maximum serum concentration and an apparent but not significant decrease in oral absorption when rifampin was given as a top dressing on grain as compared with administration in corn syrup 2 h before or 2 h after feeding. Although there were no differences between administration before or after feeding, administration 2 h prior to feeding was selected as the method of choice for future experiments. The effects of age on rifampin disposition were subsequently examined using this method of administration in six, 1-week old foals. Rifampin (10 mg/kg) was given at increasing age from 1 through 10 weeks and the pharmacokinetic disposition parameters compared. There were significant differences in the slope of the elimination phase (beta) and area under the curve (AUC) at 1 week through 6 weeks compared with 10 weeks or with values in the five mature horses.
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
March 2001,
Clinical pharmacology and therapeutics,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
August 1996,
Journal of veterinary pharmacology and therapeutics,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
June 2018,
Journal of veterinary pharmacology and therapeutics,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
January 1990,
Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
November 1974,
Clinical pharmacology and therapeutics,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
January 1987,
British journal of clinical pharmacology,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
November 1998,
Transplantation proceedings,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
July 1986,
Canadian journal of veterinary research = Revue canadienne de recherche veterinaire,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
January 1996,
Indian journal of leprosy,
G E Burrows, and
C G MacAllister, and
P Ewing, and
E Stair, and
P W Tripp
November 1974,
Obstetrics and gynecology,
