Effect of Sucralfate on the Relative Bioavailability of Enrofloxacin and Ciprofloxacin in Healthy Fed Dogs
Date
2015-12-09
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Abstract
Description
Background: Sucralfate impairs absorption of ciprofloxacin and other fluoroquinolones in humans, but no sucralfate-fluoroquinolone interaction has been reported in dogs. Veterinary formularies recommend avoiding concurrent administration of these medications, which might impact compliance, therapeutic success, and resistance selection from fluoroquinolones. Objectives: To determine whether a drug interaction exists when sucralfate is administered to fed dogs concurrently with ciprofloxacin or enrofloxacin, and whether a 2 hour delay between fluoroquinolone and sucralfate affects fluoroquinolone absorption. Animals: Five healthy Greyhounds housed in a research colony. Methods: This was a randomized crossover study. Treatments included oral ciprofloxacin (C) or oral enrofloxacin (E) alone, each fluoroquinolone concurrently with an oral suspension of sucralfate (CS, ES), and sucralfate suspension 2 hours after each fluoroquinolone (C2S, E2S). Fluoroquinolone concentrations were evaluated using liquid chromatography with mass spectrometry. Results: Drug exposure of ciprofloxacin was highly variable (AUC 5.52-22.47 h ?g/mL) compared to enrofloxacin (AUC 3.86-7.50 h ?g/mL). The mean relative bioavailability for ciprofloxacin and concurrent sucralfate was 48% (range 8-143%) compared to ciprofloxacin alone. Relative bioavailability of ciprofloxacin improved to 87% (range 37-333%) when sucralfate was delayed by 2 hours. By contrast, relative bioavailability for enrofloxacin and concurrent sucralfate was 104% (94-115%).
Citation: KuKanich, K., KuKanich, B., Guess, S. and Heinrich, E. (2015), Effect of Sucralfate on the Relative Bioavailability of Enrofloxacin and Ciprofloxacin in Healthy Fed Dogs. Journal of Veterinary Internal Medicine. doi: 10.1111/jvim.13796
Citation: KuKanich, K., KuKanich, B., Guess, S. and Heinrich, E. (2015), Effect of Sucralfate on the Relative Bioavailability of Enrofloxacin and Ciprofloxacin in Healthy Fed Dogs. Journal of Veterinary Internal Medicine. doi: 10.1111/jvim.13796
Keywords
Canine, Drug interaction;, Fluoroquinolone, Pharmacokinetics
