Fludarabine inhibits DNA synthesis by interfering with ribonucleotide reductase and DNA polymerase .
Fludarabine is a purine analog , and can be given both orally and intravenously .
purine analog inhibits DNA synthesis by interfering with ribonucleotide reductase and DNA polymerase .
Fludarabine is a purine analog , and can be given both orally and intravenously .