Inhibition of undesired effect of platinum compounds

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514476, 514491, 514974, A61K 3127

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045942382

ABSTRACT:
Dithiocarbamic compounds, administered about 0.5 to about 6 hours after Pt compounds, have been found to counter the toxicity of the platinum in multicellular organisms (e.g. mammals). For example, neoplastic growths in mammals can be treated with cis-diamine or cis-diammine Pt(II) complexes with greatly lessened risk of nephrotoxicity, bone marrow toxicity, or damage to the digestive system of the mammal, provided the dithiocarbamic compound is timely (and preferably parenterally) administered. Particularly effective dithiocarbamic compounds are monomeric (e.g. ##STR1## where M is a pharmaceutically acceptable cation and R.sup.1 and R.sup.2 are lower aliphatic (or cycloaliphatic or heterocycloaliphatic groups) or, less preferably, dimeric, e.g. ##STR2## wherein R.sup.1 and R.sup.2 are as defined previously, and R.sup.3 and R.sup.4 are defined in the same manner as R.sup.1 and R.sup.2. These dithiocarbamic compounds do not significantly reduce the desired effect of the Pt(II) compounds (particularly when the dithiocarbamic compound is intravenously administered), despite their effectiveness in reducing harmful side effects.

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