This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
Drug of choice for treatment of infestation due to Onchocerca volvolus is: 
Select and explain. 
A. Albendazole, B. Ivermectin, C. Praziquantal, D. Suramin
B: Ivermectin
Answer: B: Ivermectin 
Explanation: (Ref: KDT 6/e p813, 8140 Ivermectin is used for onchocerca and strongyloides, for all other nematodes, DOC is albendazole and for cestodes and flukes, DOC is praziquantal.