Nightshade poisoning occurs when horses ingest plants from the genus Solanum, a group that includes several species that produce toxic compounds. Plants such as black nightshade (Solanum nigrum), bittersweet nightshade (Solanum dulcamara), and horse nettle (Solanum carolinense) contain naturally occurring...
Methocarbamol is a centrally acting muscle relaxant commonly used in horses to treat skeletal muscle spasms. These spasms can occur during conditions that cause muscle inflammation or injury and are often associated with disorders such as exertional rhabdomyolysis, commonly known...
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,...
Standing sedation and general anesthesia are two primary methods veterinarians use to immobilize horses for medical and surgical procedures. From routine dental care to complex colic surgery, selecting the appropriate anesthetic approach is a critical part of equine medicine due...
Nasopharyngeal sampling is a commonly performed diagnostic procedure in equine practice, used to identify infectious agents affecting the upper respiratory tract. It involves inserting a deep nasal swab into the nasopharynx to collect samples for testing for viral or bacterial...
Quinidine is an antiarrhythmic medication used in horses for the treatment of atrial fibrillation (AF), the most common type of cardiac arrhythmia that warrants medical intervention. Atrial fibrillation occurs when the upper chambers of the heart (the atria) beat in...
Bacterial infections are a common cause of illness in horses and can affect nearly every body system, from the skin and respiratory tract to the gastrointestinal tract, urinary system, and joints. These infections may develop after wounds or surgical procedures,...
Rhinopneumonitis in horses, commonly called "rhino," is a contagious respiratory disease caused by equine herpesviruses (EHV-1 and EHV-4). These viruses are widespread in horse populations worldwide, and most horses are exposed at some point in their lives. While many cases...
Twitching is an equine restraint technique that is sometimes used during veterinary and husbandry procedures. Most often applied to the upper lip, a twitch is designed to limit movement and improve safety when a horse reacts to brief discomfort or...
The equine respiratory system plays a critical role in athletic performance and overall health, and even subtle abnormalities can significantly impact a horse’s comfort, stamina, and ability to perform. Because many respiratory problems are located deep within the nasal passages,...
Effective parasite control is a cornerstone of equine health management. While routine deworming once served as the mainstay of parasite prevention, increasing evidence of anthelmintic resistance has shifted the focus toward diagnostic testing and targeted treatment. Diagnostic tests provide valuable...
Nasogastric intubation is one of the most fundamental and frequently performed procedures in equine practice. It serves both diagnostic and therapeutic purposes and is a critical component of evaluating horses with gastrointestinal disease, particularly those presenting with signs of colic....
Catastrophic limb injuries are among the most serious emergencies a horse can face. They involve severe damage to bones, joints, or supporting soft tissues, leaving the horse unable to bear weight safely. Unlike minor strains, sprains, or small fractures, these...
Upper airway obstruction can have an immediate impact on a horse's ability to breathe, perform, and stay comfortable, especially during exercise. Because horses rely entirely on their nasal passages for airflow, even small changes in the structures of the throat...
Abdominal ultrasound is a valuable, non-invasive diagnostic tool that allows veterinarians to visualize the organs and soft tissues within a horse’s abdomen. Using high-frequency sound waves, the technique produces real-time images that can reveal both normal anatomy and subtle abnormalities....
Allergies are a common yet often misunderstood source of skin and respiratory problems in horses. Many owners recognize issues such as colic or lameness, while allergic reactions receive less attention despite causing significant disruption when symptoms become chronic, recurring, or...
Rectal examination remains one of the most valuable and informative diagnostic tools available to equine practitioners when evaluating gastrointestinal conditions. In cases of colic, it is often the single most informative procedure for identifying the underlying cause, determining the severity...
Joint disease and injury are common causes of lameness and poor performance in horses, particularly in athletic or young growing animals. Conditions such as osteochondritis dissecans (OCD), synovitis, and traumatic fractures of joint surfaces can significantly affect a horse’s comfort,...
Threadworms (Strongyloides westeri) are an equine intestinal parasite that primarily affects newborn foals, making them one of the earliest parasitic concerns in young horses. Transmission often occurs through the mare's milk, allowing larvae to establish in the foal's intestines within...
Bucking is an equine behavior that can be both thrilling and frightening for riders. It can be a playful leap in the pasture or a dangerous kick under saddle. Some horses buck to release energy or excitement, while others do...
Raised, red, or itchy swellings on a horse's skin are commonly described as hives, wheals, or urticaria. While the terminology may differ between veterinarians, owners, or practitioners, they all refer to the same physiological reaction. "Hives" is the common term...
The equine digestive system is a remarkably complex and sensitive network of organs, adapted to process a steady supply of forage around the clock. When its delicate balance is disrupted, the horse's ability to process and absorb nutrients is affected....
The equine gastrointestinal system is one of the most complex parts of a horse’s body. Designed for nearly constant grazing, a horse’s digestive tract depends on a steady flow of forage, water, and beneficial microbes to function properly. When this...
Cooling down a horse after exercise is a vital part of responsible equine care, ensuring their body transitions safely back to its normal state. This process allows the horse’s temperature, heart rate, and respiration to stabilize after exertion, supporting overall...
Neurologic disease in horses often presents a diagnostic challenge, as clinical signs can be vague or difficult to narrow down to one disease. A valuable tool available to veterinarians handling neurologic cases is cerebrospinal fluid (CSF) analysis. By providing a...
Fungal diseases in horses represent a diverse group of conditions that can affect the skin, respiratory tract, eyes, and internal organs. While less common than bacterial or viral infections, fungal infections are often more insidious and challenging to diagnose. Because...
Abdominal disease is a common and sometimes life-threatening problem in horses, with colic being one of the most frequent emergencies encountered in equine practice. One valuable tool in the diagnostic process for colic cases is abdominocentesis, also known as a...
The equine heart is a remarkable organ, designed to support athletic performance, endurance, and overall health. However, like any system, it can be affected by disease or structural abnormalities that compromise its function. Detecting heart problems in horses can be...
Sleep is a fundamental part of equine life, yet it remains one of the least understood aspects of horse behavior. Every horse depends on rest to restore the body and mind, and equine sleep is quite different from what we...
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