In terms of the influence of the UGT2B7 genotype on drug-induced toxicity, the intronic UGT2B7 rs7438135 G-allele was associated with mycophenolate mofetil-induced anemia in kidney transplant patients, whereas the A-allele was not associated with drug-induced toxicity [98]. This evidence concerns the gene UGT2B7 and anemia (phenotype).