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Acquired Resistance to ‘Melarsen’, Tryparsamide and Amidines in Pathogenic Trypanosomes after Treatment with ‘Melarsen’ Alone

Abstract

‘MELARSEN’ (disodium - p - melaminylphenylarsonate1, I) is active against tryparsamide-resistant trypanosome strains both in the field2 and in the laboratory3, and is more effective than tryparsamide (sodium p-glycineamidophenylarsonate) in rendering trypanocidal the cerebrospinal fluid in rabbits4. In view of these properties, the behaviour of a ‘Melarsen’-resistant trypanosome strain seemed to merit investigation.

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ROLLO, I., WILLIAMSON, J. Acquired Resistance to ‘Melarsen’, Tryparsamide and Amidines in Pathogenic Trypanosomes after Treatment with ‘Melarsen’ Alone. Nature 167, 147–148 (1951). https://doi.org/10.1038/167147a0

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