Which of the following is the drug of choice in treating enterobiasis? (AIIMS May 2012)
a. Mebendazole is the most appropriate of several available benzimidazole compounds to treat enterobiasis. This drug of choice is a highly effective, broad-spectrum antihelminthic.
b. Metronidazole (B) is used to treat various protozoan infections, but is not efficacious in treating pinworms.
c. Piperazine (C) is an anthelminthic that was used prior to the discovery of mebendazole to treat enterobiasis and is less effective, and its dose regimens are more complicated.
d. Praziquantel (D) is effective in treating tapeworm and fluke (flatworms) infections but is not useful against pinworms or other nematodes.