How long does anthetamine stay in you?

Amphetamines can generally be detected in the body for varying lengths of time depending on the method of testing. In urine tests, they may be detectable for 1 to 3 days after use, while blood tests can detect them for up to 12 hours. Hair follicle tests can show traces for much longer, potentially up to 90 days. Individual factors like metabolism, frequency of use, and dosage can also influence detection times.