How Long Does Fentanyl Stay in Urine? Detection Times and Testing Methods
Fentanyl is a highly potent synthetic opioid that poses significant risks, especially in cases of unintentional exposure or overdose. Understanding how long fentanyl stays in urine is crucial for effective drug testing, whether for clinical, forensic, or harm-reduction purposes. This guide explores the detection timeframe for fentanyl in urine, factors that influence this duration, and reliable testing methods.