{{Rsnum
|rsid=2236861
|Gene=OPRD1
|Chromosome=1
|position=28813244
|Orientation=minus
|GMAF=0.1749
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene_s=OPRD1
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 63.7 | 31.9 | 4.4
| HCB | 80.3 | 19.0 | 0.7
| JPT | 79.6 | 19.5 | 0.9
| YRI | 93.2 | 6.8 | 0.0
| ASW | 93.0 | 7.0 | 0.0
| CHB | 80.3 | 19.0 | 0.7
| CHD | 83.3 | 14.8 | 1.9
| GIH | 76.2 | 21.8 | 2.0
| LWK | 89.1 | 10.9 | 0.0
| MEX | 67.2 | 25.9 | 6.9
| MKK | 94.2 | 5.1 | 0.6
| TSI | 53.9 | 37.3 | 8.8
| HapMapRevision=28
}}{{PMID Auto
|PMID=18518925
|Title=Genetic susceptibility to heroin addiction: a candidate gene association study
|OA=1
}}

{{PMID Auto
|PMID=19500151
|Title=Heroin addiction in African Americans: a hypothesis-driven association study.
|OA=1
}}

{{PMID Auto
|PMID=24086514
|Title=Association of Polymorphisms in Pharmacogenetic Candidate Genes (OPRD1, GAL, ABCB1, OPRM1) with Opioid Dependence in European Population: A Case-Control Study
|OA=1
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}