The effect of timing of a single injection on the toxicity of methotrexate in the rat
- 1 January 1982
- journal article
- research article
- Published by Springer Nature in Cancer Chemotherapy and Pharmacology
- Vol. 9 (2) , 114-117
- https://doi.org/10.1007/bf00265390
Abstract
Summary The possibility of a circadian rhythm in the toxicity of methotrexate was investigated in rats after a single intravenous bolus. Indices of haematological, renal and hepatic toxicity were studied, as were the pharmacokinetics of the drug. All the parameters showed a circadian variation, with maximum toxicity occurring after dosage at 06.00 h and minimum toxicity after dosage at midnight. Administration at the other two time points, 12.00 h and 18.00 h, gave intermediate results.Keywords
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