The approximate amount of time that ketamine will still be detectable in urine after use is 3-5 days.
While a urine test and hair follicle test could potentially detect ketamine in the body 14 days and three months after use, respectively, these will just be trace amounts of the drug.
Drug metabolism rates vary between individuals. Some people metabolize a drug quickly, whereas, for others, the process can be much slower.
Dosage is another crucial factor that can alter how long ketamine lasts in the body’s system. When taking a small dose of ketamine, it will stay in your body for a much shorter amount of time.