Abstract
Chlorambucil (Leukeran) is an alkylating agent that has been available since 1952. Alkylating agents substitute an alkyl group for hydrogen ions in organic compounds. Alkylation of DNA results in binding of DNA strands so they cannot “unzip” and replicate. Cell death is induced in rapidly proliferating tissue such as the bone marrow. Chlorambucil is readily and reliably absorbed orally with availability of 56–105 %. Bioavailability increases from 50 to 75 % when taken on a full stomach. The half-life in the serum is 1.5 h, and it is metabolized in the liver to phenyl acetic acid mustard which also has cytotoxicity. Hydrolysis of both chlorambucil and phenyl acetic acid mustard to inactive compounds results in elimination of less than 1 % of both in the urine. Chlorambucil has a very slow onset of action (~4 weeks for full activity) making acute toxicity unlikely.
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Tessler, H.H. (2016). Chlorambucil. In: Zierhut, M., Pavesio, C., Ohno, S., Orefice, F., Rao, N. (eds) Intraocular Inflammation. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75387-2_23
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DOI: https://doi.org/10.1007/978-3-540-75387-2_23
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