ABCB1 and epilepsy: This study was considered a confirmation of the previous results reported by Siddiqui et al.28However, another study analyzed SNP rs1045642 (C3435T) at the ABCB1 gene in 175 patients with TLE, 134 patients with drug‐responsive TLE, and 41 patients with drug‐resistant TLE and found no difference in allele frequency,31 starting a long controversy over the role of ABCB1 in pharmacoresistance in patients with epilepsy.