Abstract
Studies of the cell killing effectiveness of ftorafur were carried out against 5-fluorouracil (5-FU). It appeared that in divided doses ftorafur is both relatively less toxic in terms of LD50 and bone marrow stem cell killing and less effective against L1210 and a mouse osteosarcoma than 5-FU. Pharmacokinetic analysis revealed that upon repeated administration of 5-FU there is an increase in late drug serum levels and a decreased clearance of 5-FU from the serum. Repeated administration of ftorafur is not associated with significant differences in serum levels of 5-FU or ftorafur. It is concluded that the relatively good tolerance to divided doses of ftorafur in comparison with divided doses of 5-FU may be a consequence of the pharmacokinetic differences.
Original language | English |
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Pages (from-to) | 61-66 |
Number of pages | 6 |
Journal | Cancer Chemotherapy and Pharmacology |
Volume | 3 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1979 |
ASJC Scopus subject areas
- Cancer Research
- Oncology
- Pharmacology