Fenbendazole Tablets

Internal Parasites in Horses

Internal parasites are tiny organisms that spend part of their life cycle inside a horse's body, where they can cause various health issues. These parasites invade specific tissues, organs, and systems within the horse, extracting nutrients to sustain their growth, development, and reproduction. Although numerous species of internal parasites affect horses, the most common include strongyles, ascarids, tapeworms, pinworms, bots, and threadworms.

Parasitic worms are often found in the intestines of horses. While small numbers of worms may not noticeably impact a horse’s overall health, significant infestations can lead to serious problems such as weight loss, colic, digestive disruptions, diarrhea, and even death.

Most horse owners understand the importance of regular deworming but may lack awareness of the specific parasites affecting their horses and the appropriate deworming agents (anthelmintics) for each type. Although many horses naturally carry a low level of parasites, strategic deworming, coupled with proper management, helps reduce the parasite burden. This, in turn, minimizes the risk of clinical illness caused by these parasites. Severe infestations, however, can inflict lasting damage on a horse's intestines and other organs, sometimes resulting in fatal consequences.

Parasites are often transmitted through their lifecycle stages. In many cases, worm eggs are ingested from contaminated pastures. These eggs hatch and mature within the horse’s digestive system or lungs, potentially leading to disease. The adult worms then produce eggs that are passed in the horse’s feces, continuing the cycle by infecting other horses.

Signs of Worm Infestation in Horses

Symptoms of a parasite infection can include:

• Fatigue or lethargy

• Weight loss

• Poor overall condition

• Diarrhea

• Abdominal pain (colic)

• Reduced appetite

• A dull or rough coat

A fecal egg count and blood test are the most reliable methods to diagnose parasitic infections. These tests identify the species of parasites present, estimate the number of adult worms, and assess pasture contamination levels. Safety and Side EffectsFenbendazole is generally safe when used at recommended dosages, even in pregnant animals. However, hypersensitivity reactions may occur due to the release of antigens from dying parasites, particularly when administering higher doses. Rarely, allergic reactions such as swelling, itching, hives, or shock can occur. In such cases, immediate veterinary care is necessary. Where to Buy Fenbendazole

Fenbendazole is available in the U.S. through veterinary compounding pharmacies. Products like FENBENDAZOLE 200 MG/ML ORAL SUSPENSION, 1000ML by NexGen Pharmaceuticals offer effective treatment options for parasitic infections in horses. Key Product InformationEquivalent Brand: FenbendazoleGeneric Name: FenbendazoleStrengths: 150 mg, 500 mgPackaging: 10 tablets per stripPharmaceutical Form: TabletsAvailable Sizes: 100 tablets, 200 tablets, 300 tablets, 400 tablets

Additional Information

Prescription Requirement  

FOR RX ONLY: This medication requires a valid prescription from a licensed veterinarian. Always consult your veterinarian before starting a deworming regimen to ensure proper treatment and avoid potential drug interactions  but you can get it without rx from us. 

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