Matsubara E, Arisawa M, Maruyama H B
Mutat Res. 1978 Mar;57(1):17-26. doi: 10.1016/0027-5107(78)90230-0.
The mutagenicity of an anti-epileptic drug, clonazepam, and its metabolites was studied by three repair (rec, pol and uvr) assays and reversion (Ames') tests. No detectable induction of mutation could be found in any tests by them per se or via metabolism in rat and mouse.