Rifampin for horses is a prescription antibiotic used primarily in the treatment of *Rhodococcus equi* pneumonia in foals. Because no rifampin product is labeled specifically for horses, it is prescribed extra-label under veterinary supervision and is commonly paired with a...

Guaifenesin for horses is used primarily as an intravenous muscle relaxant during anesthesia, although it is also included as an expectorant in some products used to manage respiratory symptoms. These distinct applications involve different formulations, doses, and levels of veterinary...

Ceftiofur is an antibiotic used to treat certain bacterial infections in horses under veterinary supervision. In the United States, its approved equine use is for lower respiratory infections caused by certain strains of Streptococcus zooepidemicus. Several injectable formulations are available,...

Penicillin G, also called benzylpenicillin, for horses is a prescription antibiotic used under veterinary direction for selected bacterial infections. It has long been used in equine practice, but its value depends on choosing the right formulation, route, and treatment plan...

Meloxicam is a non-steroidal anti-inflammatory drug (NSAID) used under veterinary direction to help manage pain and inflammation in horses. Horse owners may encounter meloxicam as part of a treatment plan for musculoskeletal discomfort, post-surgical pain, or other situations where controlling...

Dantrolene is a skeletal muscle relaxant used in horses to manage conditions involving excessive skeletal muscle contraction or muscle damage, most notably exertional rhabdomyolysis (tying-up). Exertional rhabdomyolysis occurs when muscle cells become damaged during or after exercise, leading to pain,...

Clenbuterol is a bronchodilator used in horses for the management of lower airway disease, including equine asthma and other conditions associated with bronchoconstriction. These disorders occur when the small airways narrow due to inflammation, excess mucus, and smooth muscle contraction,...