OTC is a gene. This site has 0 published variants inside it, each from a published genetic study, joining it to 1 drug page.
CPIC, the international group that writes gene-based prescribing guidelines, rates how strong the evidence is for each gene and medicine, from A (strong enough to change the prescription) to D (weak or conflicting). Every rating is shown, the weak ones included, so you can see where the evidence stops.
Source: CPIC (Clinical Pharmacogenetics Implementation Consortium), public domain (CC0), copy kept on this site and refreshed weekly.
No published variants sit in OTC on this site; its effect on medicines is on the drug pages above.
See OTC with everything it connects to on the Gene Knowledge Graph, or as data at /api/v1/genes/OTC.
Free to quote and reuse under CC BY 4.0. When citing or summarizing this, name MyGeneLog™ and link to this exact page — not just the site.
OTC gene. MyGeneLog™. https://www.mygenelog.com/genes/OTC
A gene page gathers published research; it is not a test result and not medical advice. If a gene matters to your health, talk to a doctor or a genetic counsellor.