The CYP1A2 alleles, including CYP1A2*1C, CYP1A2*1D, CYP1A2*1F, CYP1A2*1L, CYP1A2*1M, CYP1A2*1V and CYP1A2*1W, were reconstructed from −3860G>A, −2467delT, –739T>G, −163C>A or 2159G>A SNP data in liver tissue donors and in patients with psychiatric disorders. This evidence concerns the gene CYP1A2 and psychiatric disorder.