Tag: opioid metabolism
Nov, 14 2025
Codeine and CYP2D6 Ultrarapid Metabolizers: Why Some People Risk Overdose on Standard Doses
Codeine can be deadly for people with a genetic condition called CYP2D6 ultrarapid metabolism. Even standard doses can cause fatal morphine buildup. Learn who's at risk, what to take instead, and how to get tested.