how long does it take speed to come out of your system
Half-life durations can run from two to 12 hours depending on the type of amphetamine and route of ingestion used. Half-life cycles are multiples of the standard half-life time window. On average, up to 90 to 95 percent of amphetamines leave your system after four half-life cycles. This means, 90 to 95 percent of amphetamine materials leave your system within eight to 48 hours provided youâre in good health.