We reported the efficacy of albendazole (ABZ) for the treatment of 27 patients with strongyloidiasis. Twenty-seven patients, 23 males and 4 females, received 200 mg of ABZ one hour before breakfast and supper for 3 days and this treatment was repeated 2 weeks later. The following results were obtained: 1) The eradication rate at 2 weeks after the initial treatment was 70.4% (19 of 27 patients) and 2 weeks after the second course was 66.7% (16 of 24 patients). 2) One patients (3.7%) complained of abdominal pain after the first treatment. Four patients (14.8%) complained of headache (n = 2), nausea (n = 1) and exanthema (n = 1) after the second treatment. But all symptoms were mild and required no treatment and subsided in a few days. 3) Positive rate of HTLV-1 antibody was 45.8% in the patients. As described above, side effects occurred in some cases, although they were mild and transient. From these results, it can be concluded that on increased dose of ABZ could be much more favorable for the treatment of strongyloidiasis.
We treated 245 strongyloidiasis patients with 7 schedules of mebendazole (MBZ) and obtained the eradication rates at 8 months to 2 years after the final treatment as described follows; MBZ (100 mg) was given twice a day orally. [Square bracket shows incidence of liver disfunction.] 1) The eradication rates at 2 years after single course of MBZ therapy for 28 days and a combination therapy (thiabendazole 500 mg powder form three times daily for 5 days followed by MBZ in powder form for 9 days, repeated once) were 93.8% (15 of 16 patients), [71.4%] and 100.0% (16/16), [50.0%]. 2) The eradication rates at 8-15 months after using MBZ alone in varying dosages were as follows: a) MBZ powder was administered for 5 days and was then repeated 1, 3 and 4 weeks later: 87.1 (27/31), [51.1%]. b) MBZ powder was given for 5 days and repeated 1 and 3 weeks later: 100.0% (7/7), [30.8%]. c) MBZ powder was administered for 4 days and repeated 1, 3 and 4 weeks later: 96.3% (26/27), [57.8%]. d) MBZ in tablet form was given for 4 days and repeated 1, 3 and 4 weeks later: 89.6% (43/48). [66.2%]. e) MBZ in tablet form was administered for 4 days and repeated 1 week later: 69.2% (9/13), [25.0%]. As described above, although the incidence of liver disfunction in the 4-day with 2-course therapy was lower than the other schedules, the eradication rate was lower. From these results, MBZ should be given to strongylodiasis patient for 4 days and repeated once, or for 3 days and repeated two or three times with 1 to 2 weeks intervals.
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