Ventipulmin (Clenbuterol HCl) Syrup
Ventipulmin (Clenbuterol HCl) is an FDA-approved preparation containing Clenbuterol HCl, for veterinary use. Available by prescription.
Veterinarians most commonly consider Ventipulmin when a horse presents with clinical signs of recurrent airway obstruction (RAO), often discussed in the context of "heaves," or other respiratory conditions where reversible airway constriction is suspected. It is frequently a point of discussion for managing environmental sensitivities or tissue stress in the lower respiratory tract. By addressing the tone of the smooth muscles surrounding the airways, your veterinarian can manage the physiological environment required for normal ventilation.
At a pharmacological level, clenbuterol hydrochloride acts as a selective beta-2 adrenoceptor agonist. When these specific receptors in the lungs are stimulated, they initiate a signaling cascade that results in the relaxation of the bronchial smooth muscle, a process known as bronchodilation. Furthermore, clenbuterol has been studied for its ability to support mucociliary clearance—the natural process by which the respiratory tract mobilizes and removes mucus and debris. Unlike non-selective agents, clenbuterol acts to target the pulmonary system with high affinity, though its sympathomimetic nature means it possesses a broader physiological profile that your veterinarian will account for. Your veterinarian will determine whether Ventipulmin is appropriate based on your horse's weight, clinical history and specific respiratory management needs.
The actions described here reflect the product's FDA-approved labeling; your veterinarian determines the appropriate use for your animal.
Prescription only. Use only under the direction of a licensed veterinarian. This information is not a substitute for veterinary diagnosis, prescribing or monitoring.
Commonly observed effects of clenbuterol administration include transient muscle tremors, sweating and an increased heart rate (tachycardia). These signs typically manifest shortly after the medications are administered and often resolve as the patient adjusts to the protocol. Some horses may exhibit mild behavioral changes or restlessness. Because clenbuterol acts on the sympathetic nervous system, your veterinarian will monitor for significant cardiovascular shifts. If you observe persistent tremors, physical distress or significant changes in appetite, contact your veterinarian promptly.
This medication is typically used with extra caution or avoided in horses with known cardiovascular impairment, cardiac arrhythmias or significant metabolic disease. It is strictly contraindicated in pregnant mares near the time of foaling, as beta-agonists can inhibit uterine contractions and interfere with the natural labor process. Before starting a protocol involving Ventipulmin, ensure your veterinarian has a complete history of all other prescriptions and supplements your horse is receiving, as it may interact with other adrenergic agents or certain anesthetics. Your veterinarian is the right person to assess your horse's individual profile and provide guidance on the necessary diagnostic follow-ups to ensure the management approach remains suitable.
Yes. Ventipulmin is a prescription medication and can only be dispensed by a licensed pharmacy upon receipt of a valid authorization from a licensed veterinarian. Mixlab verifies authorizations for all prescription medications before they are dispensed.
Yes. While Ventipulmin is available as a commercial oral syrup, Mixlab can compound the active ingredient, clenbuterol hydrochloride, into alternative formats or specialized strengths if your veterinarian determines a customized preparation better suits your horse's needs. The decision between a commercial and compounded product rests with the prescribing veterinarian.
Sweating and mild muscle tremors are commonly observed physiological responses to clenbuterol because it is a sympathomimetic agent that stimulates beta-receptors. Your veterinarian will provide guidance on what to expect and how to monitor your horse’s comfort during the management process.
Veterinarians typically avoid the use of clenbuterol in mares that are close to foaling because the medication can relax the muscles of the uterus, potentially delaying or complicating labor. Always inform your veterinarian if your mare is pregnant before starting any new respiratory protocol.
