VHOSPITAL.CLINIC · Antiparasitic Treatment
Mebendazole is used in the intestinal phase of trichinellosis to eliminate adult worms before larval muscle invasion; early treatment is critical for preventing systemic disease.
Mebendazole kills adult Trichinella worms in the intestine, reducing the larval load released into circulation. During the muscle phase, it also targets encysted larvae, though efficacy diminishes once larvae complete encystment.
Adults: 200–400 mg three times daily for 3 days (intestinal phase); 400–500 mg three times daily for 10–14 days (muscle phase with corticosteroids). Start as early as possible after diagnosis.
This is a general reference. Always follow your physician's prescription and current treatment guidelines.
Mebendazole is highly effective in the intestinal phase (first 1–2 weeks). Efficacy against encysted muscle larvae is partial — the drug penetrates muscle tissue poorly once the collagen capsule forms around larvae.
In systemic trichinellosis, the immune response to dying larvae causes more damage than the parasites themselves. Corticosteroids (prednisolone 30–60 mg/day) suppress this inflammatory response and prevent myocarditis and encephalitis.
Thorough cooking of pork, wild boar, and game meat to internal temperature >71°C (160°F) kills all Trichinella larvae. Freezing at -15°C for 3 weeks is effective for some (not all) Trichinella species.
By treating Trichinellosis, Mebendazole addresses these associated symptoms:
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