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  • Title: Effects of cetirizine dihydrochloride on human lymphocytes in vitro: evaluation of chromosome aberrations and sister chromatid exchanges.
    Author: Vlastos D, Stephanou G, Demopoulos NA.
    Journal: Skin Pharmacol Appl Skin Physiol; 1998; 11(2):104-10. PubMed ID: 9603661.
    Abstract:
    The ability of cetirizine dihydrochloride, an antihistaminic agent, to induce chromosome aberrations as well as sister chromatid exchanges (SCEs) was evaluated in human lymphocyte cultures treated in vitro. The following concentrations were tested: 25, 50, 75, 100 and 200 micrograms/ml. The results of our study revealed that cetirizine dihydrochloride is capable of inducing chromosome aberrations, at least at the higher concentrations studied, 100 and 200 micrograms/ml. The majority of aberrations was of chromatid type. Cetirizine is also a weak inducer of SCEs. Further studies are now warranted in order to define the in vivo cytogenetic activity of cetirizine in humans.
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