Artidexa Chinfield is a veterinary corticosteroid injection containing dexamethasone, designed for sport and working equines. It is one of the most powerful anti‑inflammatory drugs available, with a potency about 30 times higher than hydrocortisone, and is used to treat localized or generalized allergic and inflammatory conditions such as arthritis, tendinitis, bursitis, neuritis, myalgias, eczema, hives, and even anaphylactic or traumatic shock.