Summary
4-Me-TMP is a research chemical stimulant structurally related to methylphenidate with approximately one-third the potency. It was briefly available after UK bans on other phenidates in 2015 before being classified as a Temporary Class Drug. User reports describe functional, methylphenidate-like stimulation with limited recreational euphoria at low doses, though some euphoria emerges at higher doses. Cardiovascular effects include tachycardia and elevated blood pressure. Long-term safety profile is unknown.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 25-40mg | 40-60mg | 60-90mg | 90-125mg+ |
| Insufflated | 10-20mg | 20-45mg | 45-70mg | 70mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Peak | Offset | After Effects |
|---|---|---|---|---|
| Oral | 20-45 min | 1-3 hrs | 2-3 hrs | 2-6 hrs |
| Insufflated | 5-15 min | 45-90 min | 1-2 hrs | 2-4 hrs |
Tolerance
Build-up
develops over days to weeks of regular use
Reset
3–7 days for acute tolerance; longer for full reset
Effects
Positive
- Stimulation
- Increased energy/alertness
Negative
- Increased heart rate
- Increased perspiration
- Teeth grinding
- Vasoconstriction
- Weight loss
- Sweating
- Bruxism
- Decreased need for sleep
- Decreased appetite
- Disturbed sleep patterns
- Itchiness
Positive
- Focus enhancement
- Motivation enhancement
- Cognitive euphoria
- Euphoria
- Increased sociability
- Mood lift
Negative
- Anxiety
- Aggressiveness
- Time distortion
- Excessive talking
- Moodiness
Positive
- Increased libido
- Increased music appreciation
Negative
- Appetite suppression
- Light sensitivity
- Dehydration
- Appetite Suppression
- Double vision
- Disinhibition
- Increased sexuality
- Visual and auditory hallucinations