{{Rsnum
|rsid=36056065
|Chromosome=6
|Orientation=plus
|geno1=(-;-)
|geno2=(-;GTAAGTTG)
|geno3=(GTAAGTTG;GTAAGTTG)
|Gene=SLC22A1
|position=160139876
|Gene_s=SLC22A1
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}{{PMID Auto
|PMID=22735389
|Title=Association of genetic variation in the organic cation transporters OCT1, OCT2 and multidrug and toxin extrusion 1 transporter protein genes with the gastrointestinal side effects and lower BMI in metformin-treated type 2 diabetes patients
}}