{{Rsnum
|rsid=2236857
|Gene=OPRD1
|Chromosome=1
|position=28835097
|Orientation=minus
|GMAF=0.2571
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Gene_s=OPRD1
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 49.6 | 46.0 | 4.4
| HCB | 79.4 | 20.6 | 0.0
| JPT | 78.8 | 20.4 | 0.9
| YRI | 45.6 | 44.2 | 10.2
| ASW | 57.9 | 38.6 | 3.5
| CHB | 79.4 | 20.6 | 0.0
| CHD | 84.4 | 13.8 | 1.8
| GIH | 70.0 | 27.0 | 3.0
| LWK | 42.6 | 48.1 | 9.3
| MEX | 43.1 | 46.6 | 10.3
| MKK | 35.5 | 46.5 | 18.1
| TSI | 49.0 | 42.2 | 8.8
| HapMapRevision=28
}}
{{PMID Auto
|PMID=18518925
|Title=Genetic susceptibility to heroin addiction: a candidate gene association study
|OA=1
}}

{{PMID Auto
|PMID=22500942
|Title=Association of OPRD1 polymorphisms with heroin dependence in a large case-control series
}}

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

{{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}}