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Fenbendazole (Panacur®)
By: Dr. Dawn Ruben

Fenbendazole belongs to a class of drugs known as anthelmintics. This drug is often used to remove various gastrointestinal parasites from animals.
Fenbendazole is available over the counter but should not be administered unless under the supervision and guidance of a veterinarian.

This drug is registered for use in animals only.

Human formulations: None
Veterinary formulations: Panacur® (Hoechst), Safe-Guard® (Hoechst) and various generics preparations

Uses of Fenbendazole

Fenbendazole is used to removal certain gastrointestinal parasites from the stomach and intestines of animals.
Fenbendazole is effective against roundworms, hookworms, whipworms, certain tapeworms and parasites called strongyles and strongyloides. Fenbendazole is also effective against certain parasites of the bronchial tree and lungs (Aelurostrongylus and Paragonimiasis).

Precautions and Side Effects

 While generally safe and effective when prescribed by a veterinarian, fenbendazole can cause side       effects in some animals.
Fenbendazole should not be used in animals with known hypersensitivity or allergy to the drug.
Infrequently, vomiting can occur after administration. The presence of dead worms in the stool may infrequently be observed.

How Fenbendazole Is Supplied

Fenbendazole is available in 222 mg/gram granules, 222 mg/gram suspensions and 100 mg/gram pastes.

Dosing Information

 Medication should never be administered without first consulting your veterinarian.
Fenbendazole generally is not effective as a one-time dose. It is recommended that fenbendazole be given once a day for several consecutive days.
For dogs and cats, 25 mg per pound (50 mg/kg) daily for three consecutive days is usually effective.
The duration of administration depends on the condition being treated, response to the medication and the development of any adverse effects. Be certain to complete the prescription unless specifically directed by your veterinarian. Even if your pet feels better, the entire treatment plan should be completed to prevent relapse or prevent the development of resistance.