A recent study to evaluate the efficacy of using topical lidocaine to numb injection sites has confirmed veterinarians’ clinical impressions. Decreasing injection reactivity improves safety for equine veterinarians and handlers.
. . . application of topical anesthetic just two minutes in advance of intramuscular injection can effectively reduce the behavioral reaction of horses.”
Source: EQUUS, November 7, 2022. Link.
Source: Efficacy of lidocaine topical solution in reducing discomfort reaction to intramuscular vaccination of horses, PennVet. Link.