How do antihistamines affect a horse’s immune system?
Antihistamines are drugs that counteract the effects of histamine released from mast cells during allergic reactions, inflammation, or stress. They work by binding to histamine receptor sites, preventing histamine from triggering reactions in susceptible tissues. While antihistamines can alleviate allergy symptoms and have antiemetic properties, their effect on a horse’s immune system is not direct. […]