Methamphetamines: What you need to know

Methamphetamine is the most popular derivative of the amphetamines. It is a potent sympathomimetic agent with therapeutic applications.
EFFECTS
Acute large doses lead to enhanced stimulation of the central nervous system and induce euphoria, alertness, reduced appetite, and a sense of increased energy and power.
INDICATORS
Rapid heart rate, sweating, talkative.
RISKS
More acute response produces anxiety, paranoia, psychotic behavior, and cardiac dysrhythmias.
DETECTION
Methamphetamine is excreted in the urine as amphetamine and oxized and deaminated derivatives. However, 10-40% of methamphetamine is excreted unchanged. Methamphetamine is generally detectable in the urine for 3 to 5 days after use.