Local anesthetics as pain therapy in horses.

The paper discusses the usage of systemically administered lidocaine, a type of local anesthetic, for pain relief in horses. It delves into its analgesic efficiency, mechanisms, and its impact on various molecular channels.

Analgesic Efficacy of Intravenously Administered Lidocaine

• The research article discusses numerous studies on human patients and laboratory animals that demonstrate the effectiveness of lidocaine when administered intravenously as an analgesic.
• These studies highlight the potency of lidocaine in producing analgesia, allowing it to be utilized effectively in pain therapy, especially concerning horses.

Mechanism Driving the Analgesic Effect

• Lidocaine’s exact mechanism of analgesia induction remains uncertain; however, speculation exists that it acts on sodium, calcium, and potassium channels, as well as the N-methyl-D-aspartate acid receptor.
• These receptors and channels play a pivotal role in conducting nerve impulses, and their modulation by lidocaine could provide an explanation for its analgesic properties.

Anti-Inflammatory Actions

• Another significant aspect of lidocaine’s analgesic properties stems from its anti-inflammatory actions.
• Since inflammatory mediators increase neuronal excitability and thereby enhance pain perception, lidocaine’s capacity to mitigate inflammation contributes significantly to its analgesic effects.

Studies on Systemically Administered Lidocaine in Horses

• The paper further discusses the empirical studies carried out on horses that underscored the analgesic and anesthetic characteristics of intravenous lidocaine.
• Documenting the effectiveness of lidocaine in equine species substantiates its applicability as a potent anesthetic agent for pain therapy in horses.