Safety Assessment of an Oral Therapeutic Dose of Firocoxib on Healthy Horses.
Abstract: Firocoxib is a non-steroidal anti-inflammatory drug specifically formulated for veterinary medicine and selectively acts on inhibiting the cyclooxygenase 2 enzyme (COX-2). This study evaluated the possible adverse effects of administering oral therapeutic firocoxib on gastric mucosa, hematological parameters, coagulation cascade, and hepatic and renal biochemistry in healthy horses. Nine clinically healthy Arabian horses, approximately 9 years old, received 0.1 mg/kg of oral firocoxib for 14 days. The gastroscopic examination was conducted 1 day before starting treatment (D0) and two days after the last blood collection (D23). Venous blood samples were obtained for laboratory tests on day 1, immediately prior to the initiation of treatment (D1), after 7 and 14 days of treatment (D7 and D14), and 7 days after the conclusion of treatment (D21. No changes were found in the gastroscopic and hematological tests. Coagulation and serum biochemistry levels remain between these species' average values. However, the increased activated partial thromboplastin time (aPTT) and prothrombin time (PT) indicate reduced blood coagulation capacity, which contradicts the expected effect of treatment with selective COX-2 inhibitors, as these drugs theoretically promote coagulation. Administering firocoxib to horses is safe as it does not cause significant adverse reactions. Therefore, it is a suitable option for managing inflammatory conditions in these animals with attention to an unexpected adverse anti-coagulopathy effect, and further study is warranted.
Publication Date: 2023-08-22 PubMed ID: 37756053PubMed Central: PMC10535825DOI: 10.3390/vetsci10090531Google Scholar: Lookup
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- Journal Article
Summary
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The research article explored the impact of administering an oral therapeutic dose of an anti-inflammatory drug, Firocoxib, to healthy horses. The study’s results showed no significant adverse reactions, proposing that Firocoxib can be used to manage inflammatory conditions in horses.
Study Design and Methodology
- The research was conducted on nine clinically healthy Arabian horses, approximately nine years old.
- Each horse received a dose of 0.1 mg/kg of oral Firocoxib for 14 days.
- Assessments were made before administration (D0), after 7 and 14 days of treatment (D7 and D14), and 7 days post-treatment (D21).
- Tests conducted included a gastroscopic examination, hematological tests, and coagulation and serum biochemistry tests.
- Gastroscopic examination was performed before starting treatment (D0) and two days after the last blood collection (D23).
Firocoxib and Its Implication
- Firocoxib is a non-steroidal anti-inflammatory drug designed specifically for veterinary medicine.
- It works by selectively inhibiting the cyclooxygenase 2 enzyme (COX-2) which is involved in inflammation and pain pathways in animals.
Key Findings
- The gastroscopic and hematological results showed no changes, indicating that the drug caused no harmful effects on the gastric mucosa and blood cells.
- Coagulation and serum biochemistry levels remained within the average values of these species.
- However, the study noted an increased activated partial thromboplastin time (aPTT) and prothrombin time (PT), indicating a reduced ability of the blood to coagulate.
- This finding is surprising as selective COX-2 inhibitors are expected to facilitate coagulation, not reduce it.
Conclusion
- The research concludes that administration of Firocoxib in horses appears safe as it doesn’t provoke significant adverse reactions.
- Consequently, Firocoxib is a suitable choice for the management of inflammatory conditions in horses.
- However, its unexpected anti-coagulopathy effect warrants further exploration.
Cite This Article
APA
Araújo RA, Sales NAA, Basile RC, Feringer-Junior WH, Apparício M, Ferraz GC, Queiroz-Neto A.
(2023).
Safety Assessment of an Oral Therapeutic Dose of Firocoxib on Healthy Horses.
Vet Sci, 10(9).
https://doi.org/10.3390/vetsci10090531 Publication
Researcher Affiliations
- Laboratory of Equine Exercise Physiology and Pharmacology (LAFEQ), Department of Animal Morphology and Physiology, School of Agricultural and Veterinary Studies, São Paulo State University, FCAV/UNESP, Via de Acesso Prof. Paulo D. Castellane s/n., Jaboticabal 14884-900, SP, Brazil.
- Laboratory of Equine Exercise Physiology and Pharmacology (LAFEQ), Department of Animal Morphology and Physiology, School of Agricultural and Veterinary Studies, São Paulo State University, FCAV/UNESP, Via de Acesso Prof. Paulo D. Castellane s/n., Jaboticabal 14884-900, SP, Brazil.
- Laboratory of Equine Exercise Physiology and Pharmacology (LAFEQ), Department of Animal Morphology and Physiology, School of Agricultural and Veterinary Studies, São Paulo State University, FCAV/UNESP, Via de Acesso Prof. Paulo D. Castellane s/n., Jaboticabal 14884-900, SP, Brazil.
- Department of Veterinary Medicine, Metropolitan University of Santos, UNIMES, Av. Gen. Francisco Glicério, 8, Santos 11045-002, SP, Brazil.
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Rua Professor Doutor Walter Mauricio Correa, s/n., Botucatu 18618-681, SP, Brazil.
- Laboratory of Equine Exercise Physiology and Pharmacology (LAFEQ), Department of Animal Morphology and Physiology, School of Agricultural and Veterinary Studies, São Paulo State University, FCAV/UNESP, Via de Acesso Prof. Paulo D. Castellane s/n., Jaboticabal 14884-900, SP, Brazil.
- Laboratory of Equine Exercise Physiology and Pharmacology (LAFEQ), Department of Animal Morphology and Physiology, School of Agricultural and Veterinary Studies, São Paulo State University, FCAV/UNESP, Via de Acesso Prof. Paulo D. Castellane s/n., Jaboticabal 14884-900, SP, Brazil.
Grant Funding
- 10/10992-2 / São Paulo Research Foundation
Conflict of Interest Statement
The authors declare no conflict of interest.
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