A comparison of two doses of omeprazole in the treatment of equine gastric ulcer syndrome: a blinded, randomised, clinical trial.
Authors: Sykes B W, Sykes K M, Hallowell G D
Journal: Equine veterinary journal
Summary
# Editorial Summary: Omeprazole Dosing in Equine Gastric Ulcer Syndrome Despite in vitro evidence suggesting omeprazole's potency at doses as low as 0.7 mg/kg bodyweight, clinical evidence comparing treatment efficacy across different doses in horses with naturally occurring gastric ulceration remained sparse prior to this 2014 trial. Sykes and colleagues conducted a blinded, randomised clinical comparison of two omeprazole regimens in affected horses, evaluating both squamous and glandular mucosal healing responses through gastroscopy. The findings provided valuable data on dose-response relationships and regional mucosal healing patterns, helping clarify whether lower doses might prove equally effective in clinical practice whilst reducing costs and owner burden. These results have important implications for treatment protocols, particularly regarding duration of therapy and likelihood of achieving complete mucosal healing in both regions of the gastric mucosa, which respond differently to acid suppression. For practitioners designing treatment plans, understanding the efficacy differential between omeprazole doses helps optimise therapeutic outcomes whilst considering economic and compliance factors.
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Practical Takeaways
- •Omeprazole dosing in clinical gastric ulcer cases may be optimizable—lower doses may be effective, potentially reducing treatment costs
- •Understanding differential healing rates between squamous and glandular ulcers can inform treatment protocols and prognosis discussions with clients
- •Blinded, randomized design provides higher-quality evidence for evidence-based treatment recommendations compared to previous pharmacokinetic studies
Key Findings
- •Study compared two doses of omeprazole for treatment efficacy in clinical cases of equine gastric ulceration
- •Previous research demonstrated omeprazole doses as low as 0.7 mg/kg bodyweight are potent acid suppressors
- •This was the first clinical trial to compare healing response of squamous versus glandular mucosa to acid suppression therapy in horses