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Antihelminthic Drugs
| Question | Answer |
|---|---|
| What is the mechanism of action in albendazole and mebendazole? What additional thing does mebendazole do? | Albendazole and Mebendazole inhibit microtubule synthesis. Mebendazole additionally block helminthic glucose uptake. |
| What is the drug of choice to treat river blindness? | Onchocerciasis volvulus (aka river blindness) caused by the black fly is best treated with ivermectin. Ivermectin works by binding to glutamate gated Cl- channels and paralyzing the helminths via hyperpolarization. |
| What helminths can be treated best with the drug albendazole? | Hookworm disease (N. americanus or A. duodenale) , Hydatid disease (E. granulosus, E. multilocularis), Ascariasis lumricoides (roundworm), **T. solium (pork tapeworm) |
| What helminths can be treated best with the drug mebendazole? | Enterobiasis (anal itching), Hook worm disease, Trichinosis (undercooked pork), Trichuriasis (whip worm) |
| What helminths can be treated best with the drug diethylcarbamazine? | All our filaria: W. bancrofti, B. malayi, B. timori, Loa loa |
| What helminths can be treated best with the drug ivermectin? | Onchocerca volvulus, strongyloides (thread worm) |
| What helminths can be treated best with the drug praziquantel? | diphyllobothrium latum (sushi), fasciolopsiasis buski (int fluke; veggies), heterophyes heterophyes (intestinal fluke; fish), schistomomas, taeniasis, and paragonomas westermanii |
| What is the mechanism of action for praziquantel? | Praziquantel increases the helminths calcium cell membrane permeability killing them via paralysis. |
| What helminths can be treated best with the drug pyrantel pamoate (Pin-X)? | Hookworms, roundworms, and pinworms |
| What is the mechanism of action for pyrantel pamoate (Pin-x)? | Causes release of ACh and inhibition of cholinesterase |
| What helminths can be treated best with the drug doxycycline ? | W. bancrofti and onchocerciasis volvulus |