4-FA/Summary

Main article: 4-FA

Psychoactive class: Stimulants, Entactogen

Chemical class: Substituted amphetamines

Oral

• Thresh				Common				Heavy
  40	-	40	-	100	-	130	-	150	mg
  		Light				Strong

• • Total: 5 - 8 hours
  • Onset: 45 - 75 minutes
  • Come up: 30 - 75 minutes
  • Peak: 2.5 - 3.5 hours
  • Offset: 2 - 3 hours
  • Afterglow: 6 - 12 hours

Harm potential

• • Moderately addictive with a high potential for abuse

Tolerance

• • Full tolerance is reached 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
• • Bodily control enhancement
  • Stimulation
• • Appetite suppression
• • Abnormal heartbeat
  • Brain zaps
  • Dehydration
  • Difficulty urinating
  • Dry mouth
  • Headache
  • Increased blood pressure
  • Increased bodily temperature
  • Increased heart rate
  • Increased perspiration
  • Seizure
  • Teeth grinding
  • Temperature regulation suppression
  • Temporary erectile dysfunction
  • Vibrating vision

Visual effects

• • Color enhancement
  • Pattern recognition enhancement
• • Auditory distortion
  • Time distortion

Cognitive effects

• • Cognitive euphoria
  • Compulsive redosing
  • Time distortion
• • Empathy, affection and sociability enhancement
  • Increased libido
  • Increased music appreciation
  • Increased sense of humor
  • Motivation enhancement
  • Novelty enhancement
• • Anxiety suppression
  • Disinhibition
  • Thought deceleration

Auditory effects

• • Auditory acuity enhancement
  • Auditory distortion
  • Auditory hallucination

See also

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