Abstract
One hundred and twenty-two lesions caused by Leishmania braziliensis in 92 patients were treated using weekly intralesional (IL) infiltrations of a generic pentavalent antimonial compound, combined with local anesthetics. The topical therapy produced satisfactory healing in all the included patients, bearing from single-small ulcers to multiple or big lesions, after receiving an average 6 ± 3 IL infiltrations (90 mgSb5+each). The rapid effect of this compound was demonstrated by the observed decrease of the Leishmania-amastigote population following microscopical grading in complicated ulcers after receiving two infiltrations. Neither discomfort nor side effects after infiltrations were recorded from the treated patients at any time. In addition, no signs of cutaneous relapse or mucosal lesion were detected during follow up after a decade clinical healing in 22% of the treated patients. Investment to produce the generic antimonial-IL treatment resulted significantly lower than the standard antimonial systemic therapy, and its cost/risk is discussed. The minimal dose of Sb5+ causing non-side effects or patient discomfort, the low production cost and the here demonstrated successful results, lead us to propose this generic antimonial compound as an alternative therapy for leishmanial-control in areas where American cutaneous leishmaniasis is endemic.
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