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J Infect Dis. 1994 May;169(5):1076-9.

A randomized trial of single- and two-dose ivermectin versus thiabendazole for treatment of strongyloidiasis.

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  • 1Department of Preventive Medicine, Northwestern University Medical School, Chicago, Illinois 60611.


A randomized trial is described comparing ivermectin and thiabendazole for treatment of chronic infection with Strongyloides stercoralis. Subjects received ivermectin (200 micrograms/kg) in a single dose, ivermectin (200 micrograms/kg) on 2 consecutive days, or thiabendazole (50 mg/kg/day) twice daily for 3 consecutive days. Most subjects (94%) had intermittent symptoms, including urticaria, epigastric pain, and diarrhea. Stools were examined 7 days and 1, 3, 6, 10, and 22 months after treatment. Fifty-three subjects completed at least 3 months of follow-up. Only 1 of 34 and 2 of 19 ivermectin and thiabendazole subjects, respectively, had a stool positive for larvae after treatment. Symptoms were relieved in all 3 groups and eosinophil levels returned to normal in 90% of all subjects by 12 months. Nearly 95% of thiabendazole subjects had short-term adverse effects during therapy versus only 18% of those treated with ivermectin. One dose of ivermectin provides safety and efficacy equivalent to thiabendazole with a much lower prevalence of side effects and, consequently, better compliance.

[PubMed - indexed for MEDLINE]
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