FENBER Bolus – High-Potency Veterinary Dewormer
FENBER is a premium veterinary anthelmintic (dewormer) formulated to treat and control a wide range of internal parasites in livestock. Powered by Fenbendazole (3g), this high-potency bolus targets gastrointestinal roundworms, lungworms, and tapeworms, ensuring your cattle, buffaloes, and other livestock maintain optimal health, a strong appetite, and peak milk yield.
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Composition: Fenbendazole IP – 3g
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Form: Bolus (Tablet)
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Packaging: Available in convenient blister packs for commercial and dairy farm use.
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Target Animals: Cattle, Buffalo, Sheep, Goats, and Camels.
Key Benefits
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Broad-Spectrum Control: Highly effective against adult, immature, and larval stages of major gastrointestinal nematodes and respiratory parasites.
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High Safety Margin: Fenbendazole is known for its wide safety margin, making it safe for use in young calves, debilitated animals, and pregnant livestock (when used as directed).
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Improves Animal Productivity: Eliminating the parasite load directly correlates with improved feed conversion efficiency, better weight gain, and restored milk production.
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Ovicidal Effect: It kills worm eggs inside the animal, reducing pasture contamination and protecting the whole herd from re-infection.
Indications & Usage
FENBER is recommended for the treatment and control of:
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Gastrointestinal Roundworms (Ostertagia, Haemonchus, Trichostrongylus, Nematodirus, Cooperia, Bunostomum, Oesophagostomum)
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Lungworms (Dictyocaulus)
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Tapeworms (Moniezia)
Dosage and Administration
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General Dosage: 5 mg to 7.5 mg of Fenbendazole per kg of body weight, or as directed by a registered Veterinary Practitioner.
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Administration: The bolus can be administered orally directly, or crushed and mixed with a small amount of feed/jaggery.
Frequently Asked Questions
Q1: What is FENBER Bolus used for?
A: FENBER is a broad-spectrum deworming medication used in veterinary medicine to eliminate internal parasites—such as roundworms, lungworms, and tapeworms—from cattle, buffaloes, sheep, and goats.
Q2: Can FENBER be safely given to pregnant livestock?
A: Yes. Fenbendazole (the active ingredient in FENBER) has an excellent safety profile and is generally considered safe for use during all stages of pregnancy in cattle and buffaloes. However, always consult your veterinarian before administering any medication to pregnant animals.
Q3: How often should I deworm my cattle with FENBER?
A: For routine herd management, dairy animals and livestock are typically dewormed every 3 to 4 months (or on a seasonal basis, such as pre-monsoon and post-monsoon). The exact frequency depends on your local climate, grazing conditions, and parasitic load.
Q4: Is there a milk or meat withdrawal period after using FENBER?
A: Yes, like most veterinary medicines, standard withdrawal periods apply to ensure safety for human consumption. Generally, the milk withdrawal period is 3 to 4 days, and the meat withdrawal period is 8 to 14 days. Please verify the exact regional regulations with your vet.
Q5: What are the signs that my animal needs deworming?
A: Common symptoms of a heavy worm infestation include sudden drop in milk yield, rough or dull hair coat, weight loss despite a good appetite, diarrhea, anemia (pale gums/eyes), and a “bottle jaw” swelling under the throat.
Q6: How should FENBER Bolus be stored?
A: Store the boluses in a cool, dry place, away from direct sunlight. Keep the packaging tightly sealed and completely out of reach of children.









