{{Rsnum
|rsid=7963720
|Gene=TPH2
|Chromosome=12
|position=71972406
|Orientation=plus
|GMAF=0.4688
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene_s=TPH2
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 16.8 | 38.1 | 45.1
| HCB | 21.9 | 51.1 | 27.0
| JPT | 20.4 | 46.0 | 33.6
| YRI | 38.8 | 46.3 | 15.0
| ASW | 28.1 | 56.1 | 15.8
| CHB | 21.9 | 51.1 | 27.0
| CHD | 30.3 | 55.0 | 14.7
| GIH | 21.8 | 48.5 | 29.7
| LWK | 55.5 | 37.3 | 7.3
| MEX | 24.1 | 58.6 | 17.2
| MKK | 43.6 | 46.2 | 10.3
| TSI | 26.5 | 42.2 | 31.4
| HapMapRevision=28
}}Only for Hispanics, individuals who have a genoset composed of [[rs1799913]](C;C) and [[rs7963720]](T;T) are reported to be at 14x higher risk for developing heroin addiction (CI:0.83-244.63, p=0.012).{{PMID|18181017}}

{{ neighbor
| rsid = 17110563
| distance = 120
}}

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