How does the detection duration of marijuana compare to other substances?

Marijuana detection duration can indeed be longer than that of amphetamines, which makes this answer accurate. The active compound in marijuana, THC, is stored in body fat and is released slowly, leading to longer detection times in urine and other biological samples.

For context, while amphetamines may typically be detected in urine for about 1 to 3 days after use, the metabolites of THC can be detectable for several days, or even weeks, particularly with frequent use. Regular users may have detectable THC levels for a significantly extended period due to accumulation in body fat, thus leading to longer detection windows.

Other substances such as cocaine and benzodiazepines have different metabolic pathways and elimination half-lives. Cocaine metabolizes quickly and may only be detectable for a shorter period compared to marijuana and even sometimes amphetamines in specific contexts. Benzodiazepines usually have varying detection times, but often not as prolonged as marijuana, depending on the specific drug and the individual's metabolism and usage.

This understanding of detection windows helps ensure accurate interpretations of drug testing results in clinical and forensic settings.