This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Intraluminal amoebicide of choice is? 
Select and explain. 
A. Metronidazole, B. Diloxanide furoate, C. Chloroquine, D. Tetracycline
B: Diloxanide furoate
Answer: B: Diloxanide furoate 
Explanation: Ans. is 'b' i.e., Diloxanide furoate Drug therapy for Amoebiasis 1. Asymptomatic carrier (asymtomatic cyst passers) ---)Diloxanide furoate is the DOC. 2. Invasive amoebiasis (acute colitis, extraintestinal amoebiasis. e.g. liver abscess) Metronidazole or Tinidazole (DOC) Plus Diloxanide furoate. Note - In invasive amebiasis, diloxanide furoate (luminal agent) is given to eradicate E. histolytica from the colon and to prevent carrier (cyst passing) state. ,