Question: Fenbendazole is ineffective against which parasite that is also called the flea tapeworm?

Related documents: [0]  [DOC] Fenbendazole (Hoechst brand names "Panacur" and "Safe-Guard", Intervet "Panacur" and "Panacur Rabbit") is a broad spectrum benzimidazole anthelmintic used against gastrointestinal parasites including: giardia, roundworms, hookworms, whipworms, the "Taenia" genus of tapeworms (but not effective against "Dipylidium caninum", a common dog tapeworm), pinworms, aelurostrongylus, paragonimiasis, strongyles and strongyloides and can be administered to sheep, cattle, horses, fish, dogs, cats, rabbits and seals. Drug interactions may occur if salicylanilides like dibromsalan and niclosamide are co-administered. Abortions in cattle and death in sheep have been reported. [END] 
[1]  [DOC] Dipylidium caninum, also called the flea tapeworm, double-pore tapeworm, or cucumber tapeworm (in reference to the shape of its cucumber-seed-like proglottids, though these also resemble grains of rice or sesame seeds), is a cyclophyllid cestode that infects organisms afflicted with fleas and canine chewing lice, including dogs, cats, and sometimes human pet-owners, especially children. [END]  
Answer: Dipylidium caninum
Dipylidium caninum