Isoxsuprine is used by veterinarians to increase circulation and blood flow, the lack of which is thought to be a contributing cause of navicular disease and laminitis. It causes smooth muscle relaxation of arteries and veins to aid in treatment of many equine conditions.
Please follow direction from your veterinarian, but a common dose is approximately 20 tablets twice a day for a 1000# horse.
Side effects are rare in horses, but can include changes in blood pressure, increased heart rate, and possible gastrointestinal irritation.
Isoxsuprine is a vasodilator and should not be used in mares immediately after foaling or horses that have active bleeding.
Isoxsuprine is not FDA approved for use with horses. It is a prescription drug and U.S. federal law restricts this drug to use by or on the lawful written or oral order of a licensed veterinarian.
Isoxsuprine is prohibited in any drug-free competition. It is important to consult a knowledgeable veterinarian and the individual regulatory group regarding rules affecting its use.
Isoxsuprine should not be used with other drugs that might affect blood pressure. It should be used with caution with most sedatives and drugs used for general anesthesia. Accurate records of its use should be kept in case an animal is referred to an equine hospital for intensive care or surgery.
Drug overdose increases the risk and severity of side effects.