Summary
5-MAPB is a potent non-selective monoamine releaser with approximately 3-5 times the potency of MDMA at serotonin and norepinephrine transporters. It functions as a full 5-HT2B receptor agonist, which suggests potential cardiac valve toxicity with repeated use; spacing sessions at least 4-6 weeks apart is strongly advised. Significant batch-to-batch variability in potency has been documented; always use reagent testing and start with a low dose. The hydrochloride salt is 36% more potent by mass than the succinate salt. Common adverse effects include hyperthermia, hypertension, tachycardia, and jaw clenching.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 40-60mg | 60-80mg | 80-100mg | 100mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | After Effects | Total |
|---|---|---|---|---|---|---|
| Oral | 19-60 min | 45-90 min | 2.0-4.0 hrs | 1.5-3.0 hrs | 6.0-48.0 hrs | 5.0-8.0 hrs |
| Insufflated | 4-19 min | 19-40 min | 2.0-4.0 hrs | 1.5-3.0 hrs | 6.0-48.0 hrs | 5.0-8.0 hrs |
| Rectal | 15-40 min | 30-60 min | 2.0-4.0 hrs | 1.5-3.0 hrs | 6.0-48.0 hrs | 5.0-8.0 hrs |
| Intramuscular | 10-30 min | 19-40 min | 2.0-4.0 hrs | 1.5-3.0 hrs | 6.0-48.0 hrs | 5.0-8.0 hrs |
Tolerance
Build-up
develops rapidly after a single use
Reset
7โ14 days for baseline
Cross-tolerance
Effects
Positive
- Stimulation
- Increased energy/alertness
Negative
- Nystagmus
- Teeth grinding
- Vasoconstriction
- Increased perspiration
- Increased heart rate
- Temporary erectile dysfunction
- Weight loss
- Sweating
- Nausea
- Increased body temperature
- Decreased need for sleep
- Decreased appetite
- Distrubed sleep patterns
- Bruxia
Positive
- Cognitive euphoria
- Empathy enhancement
- Increased sociability
- Wakefulness
- Euphoria
- Mood lift
- Empathy, affection and sociability enhancement
- Motivation enhancement
- Memory enhancement
- Analysis enhancement
Negative
- Anxiety
- Cognitive fatigue
- Depression
- Motivation suppression
- Thought deceleration
- Agressiveness
- Irritability
- Compulsive redosing
- Motivation depression
- Time distortion
- Excessive talking
- Moodiness
- Thought acceleration
- Focus intensification
Positive
- Tactile enhancement
- Music enhancement
- Visual acuity enhancement
- Colour enhancement
- Increased music appreciation
Negative
- Appetite suppression
- Dehydration
- Increase sexuality
- Visual and audiotory hallucinations itchiness
- Vibrating vision