Drug detection durations?
Any or all of the following factors contribute to the length of drug detection in the human body. The amount of drug taken, how frequently the person takes the drug, how the drug was taken (smoked, snorted or injected), the metabolic rate of the user, fluid intake, and age of the user all contribute to detection periods. A general guideline for detection is as follows: DRUG MINIMUM DETECTION MAXIMUM DETECTION Amphetamine 2-7 hours after use 2-4 days after use Methamphetamine 2-7 hours after use 2-4 days after use Cocaine metabolite 1-4 hours after use 2-3 days after use Marijuana (THC) 6-18 hours after use Up to 28 days after use depending on frequency Phencyclidine (PCP) 7 hours after use 3-5 days after use Opiates (codeine/morphine) 2.
Any or all of the following factors contribute to the length of drug detection in the human body. The amount of drug taken, how frequently the person takes the drug, how the drug was taken (smoked, snorted or injected), the metabolic rate of the user, fluid intake, and age of the user all contribute to detection periods.