Pharmacological properties: Phenylbutazone is a classic non-steroidal anti-inflammatory drug (NSAID). It is chemically related to aminopyrine and antipyrin and has a common mechanism of action. It produces a blockade of the enzymatic system of the cyclooxygenase in a way that is probably irreversible. This fact gives it an immediate anti-inflammatory character. Indications and species of destination: Equidae: Inflammatory processes of equids, except those that present with lesions of the intestinal mucosa. Acute localized inflammations of the locomotor apparatus, such as arthritis, tendonitis, myositis, synovitis, infosure, etc. Injuries in general. Postoperative treatments of all kinds such as sutures of cutaneous wounds, surgery of the locomotor system. Abdominal surgery, etc. (does not interfere with the healing process). Pain in general, either causing lameness or any other functional claudication.