How long does iv Demerol stay in your urine?

Demerol, also known as meperidine, can be detected in urine for up to 2-4 days after a single dose. Factors such as the individual's metabolism, hydration level, and overall health can affect the detection window. Additionally, urine drug tests have cut-off levels that determine the lowest concentration of a drug that can be reliably detected in urine. Please consult with a medical professional or your testing laboratory for more precise information regarding Demerol's detection period in urine.