The toxicity of a treatment encompasses the set of possible side effects of that treatment. In oncology, toxicity can refer to a therapeutic modality, such as chemotherapy and radiotherapy; a treatment regimen, such as a combination of two or more chemotherapy drugs; or a specific drug.

The assessment of the toxicity of a drug or therapeutic method is conducted throughout the various stages of clinical research that are carried out before the treatment is approved for regular use. This evaluation involves, in addition to the characterization of side effects, the conditions and doses in which the toxicity occurs.

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This content is part of the Oncoclínicas glossary with all terms related to Oncology and its treatments.
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