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Anthelmintic Drugs

Helmintic infections. Helmintic infections. Human is the primary host for most helminthic infections.Most worms produce eggs and larvaThese pass out of human body and infect secondary hostImmature forms invade humans via skin or GIT. Types of worms. Worms live in host,s alimentary canalWorms

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Anthelmintic Drugs

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    1. Anthelmintic Drugs

    2. Helmintic infections

    3. Helmintic infections Human is the primary host for most helminthic infections. Most worms produce eggs and larva These pass out of human body and infect secondary host Immature forms invade humans via skin or GIT

    4. Types of worms Worms live in host,s alimentary canal Worms or larvae live in muscles , viscera , menninges, lungs. Subcutaneous tissues

    5. Intestinal Worms A) Round worms ( Nematodes ) Ascaris lmubricods ( common ) Enterobius vermicularis ( pin worm) Trichris trichuria ( whip worm) Strongyloids stercoralis ( thread Ankylostoma dudenale ( hook worm

    6. B) Tape worms ( cestodes ) Taenia saginata ( Beef) Taenia solium ( pork) Humans become infected by eating raw or unde cooked meat containing larvae of infected cattle or pig

    7. Continue ( cestodes ) In some cases the larva gets encysted in muscles , viscera , brain , eye resulting in cysticercosis

    8. Tissue worms Filariae ( bancrofti, loa loa ) Adult filariae live in the lymphatics , causing lymphadenitis , swelling of limb. Microfilariae goes to blood stream to be ingested by mosquitoes Trichnella spiralis : larva migrats from intestine to tissues of leg or foot producing ulcer

    9. Anthelminthic Drugs May act by causing : paralysis of the worm. damaging the worm leading to partial digestion or rejection by immune mechanisms. interfere with the metabolism of the worm.

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