Fenbendazole (Panacur)


By Dr. Karen Burgess

Brand name and formulations

  • Fenbendazole (generic formula)
  • Panacur (brand name animal formula)
  • Powder, Liquid

What is Panacur?
Fenbendazole is an antiparasitic known for its efficacy against roundworms, hookworms, lungworm, flukes, Giardia, and tapeworm.

How is fenbendazole given?
Fenbendazole is typically prescribed daily for three to five consecutive days.

How should fenbendazole be stored?
Store at room temperature.

What side effects are associated with fenbendazole?
Vomiting, diarrhea, and excessive salivation may be associated with the use of fenbendazole.

What drugs should not be given with fenbendazole?
There are no specific drug interactions of major concern.

What follow up is necessary with fenbendazole use?
Follow up dosing may be recommended. Prevention of future re-exposure is recommended via monthly heartworm preventative administration. Follow up fecal examination is recommended a week after treatment is completed.