What Do We Know About Clodronate Now? A Medical and Veterinary Perspective.
Authors: Markell Richard, Saviola Gianantonio, Barker Elizabeth Ann, Conway James Daniel, Dujardin Chris
Journal: Journal of equine veterinary science
Summary
# Editorial Summary: Clodronate and Bisphosphonates in Equine Practice Bisphosphonates have generated considerable debate within equine medicine, largely because practitioners often conflate different drug classes without fully understanding their distinct mechanisms of action and clinical effects. Richard and colleagues conducted a comprehensive review synthesising evidence from both human medicine and veterinary research to clarify how bisphosphonates work, how different classes differ, and what safety considerations apply to equine patients. The authors found that whilst all bisphosphonates inhibit osteoclast-mediated bone resorption, their potency, selectivity, and side-effect profiles vary substantially between generations—with first-generation drugs like clodronate behaving quite differently from nitrogen-containing bisphosphonates now commonly used in horses. For farriers, vets, and rehabilitation professionals, this distinction matters: understanding whether a horse is receiving a milder agent versus a potent nitrogen-bisphosphonate directly affects monitoring protocols, expectations for clinical response in conditions like palmar osteitis or navicular disease, and awareness of potential adverse effects such as secondary hyperparathyroidism. This collaborative medical-veterinary perspective also explores emerging applications and safety benchmarks, providing practitioners with evidence-based context for informed decision-making around bisphosphonate therapy rather than blanket acceptance or rejection of the drug class.
Read the full abstract on PubMed
Practical Takeaways
- •Understanding the different classes of bisphosphonates and their specific mechanisms of action is essential for appropriate clinical decision-making in equine bone disease management
- •Safety profiles of bisphosphonates differ between human and equine medicine; veterinarians should refer to species-specific evidence rather than extrapolating from human studies
- •Recent controversy regarding bisphosphonate use in horses may be addressed through clearer understanding of drug classification and effects; practitioners should stay informed on updated evidence
Key Findings
- •Review clarifies different bisphosphonate classes and their distinct mechanisms of action between human and equine applications
- •Addresses recent controversy surrounding bisphosphonate use in horses by synthesizing evidence from both medical and veterinary fields
- •Discusses safety aspects of bisphosphonates in equine medicine with comparison to human medical practice
- •Explores potential future therapeutic applications of bisphosphonates in veterinary medicine