أمفيتامين

How long does speed work, and what are amphetamine's side effects?

The rush lasts hours, the half-life 10 to 12 hours and the urine window days. Why your urine pH quietly helps set that l...

How long is amphetamine (speed) detectable?

Amphetamine is usually detectable for 1 to 3 days in urine and up to 90 days in hair. Some medicines can distort a rapid...