Methamphetamine/Summary

Main article: Methamphetamine

Psychoactive class: Stimulants

Chemical class: Amphetamine, Substituted amphetamines

Oral

• Thresh				Common				Heavy
  5	-	5	-	15	-	30	-	60	mg
  		Light				Strong

• • Total: 8 - 12 hours
  • Onset: 20 - 45 minutes
  • Peak: 3 - 5 hours
  • Offset: 3 - 4 hours

Insufflated

• Thresh				Common				Heavy
  5	-	5	-	10	-	30	-	60	mg
  		Light				Strong

• • Peak: 20 - 20 minutes
  • Offset: 1 - 1 hours
  • Afterglow: 6 - 12 hours

Smoked

• Thresh				Common				Heavy
  5	-	5	-	10	-	20	-	60	mg
  		Light				Strong

• • Total: 1 - 4 hours
  • Onset: 0 - 2 minutes
  • Peak: 1 - 3 hours
  • Offset: 1 - 3 hours
  • Afterglow: 2 - 18 hours

Intravenous

• Thresh				Common				Heavy
  5	-	5	-	10	-	30	-	40	mg
  		Light				Strong

• • Total: 4 - 8 hours
  • Onset: 1 - 2 minutes
  • Offset: 3 - 4 Hours

Harm potential

• • Extremely addictive with a high potential for abuse

Tolerance

• • Full tolerance is reached rapidly develops with prolonged and repeated use
  • Decreases to half after 3 - 7 days
  • Returns to baseline after 1 - 2 weeks
  • Cross-tolerance with all dopaminergic stimulants

Physical effects

• • Muscle contractions
• • Stamina enhancement
  • Stimulation
• • Appetite suppression
• • Abnormal heartbeat
  • Dehydration
  • Frequent urination
  • Increased blood pressure
  • Increased bodily temperature
  • Increased heart rate
  • Increased perspiration
  • Muscle twitching
  • Seizure
  • Teeth grinding
  • Temporary erectile dysfunction
  • Vasoconstriction
  • Vibrating vision

Visual effects

• • Brightness alteration
  • Drifting
• • Double vision
• • Transformations

Cognitive effects

• • Cognitive euphoria
  • Compulsive redosing
  • Time distortion
• • Analysis enhancement
  • Anxiety
  • Ego inflation
  • Empathy, affection and sociability enhancement
  • Focus enhancement
  • Immersion enhancement
  • Increased libido
  • Increased music appreciation
  • Irritability
  • Memory enhancement
  • Motivation enhancement
  • Thought acceleration
  • Thought organization
  • Wakefulness
• • Cognitive fatigue
  • Motivation suppression
  • Thought deceleration

Multi-sensory

• • Psychosis

See also

• Responsible use
• Summary index
• Subjective effect index
• Psychoactive substance index