Summary
alpha-PHP is an extremely potent stimulant with a high addiction liability and significant risks of paranoia, anxiety, and psychosis. It is structurally related to alpha-PVP but with a longer alkyl chain. Users report intense compulsive redosing, especially when vaporized. The substance can produce severe cardiovascular strain, hyperthermia, and extended psychotic episodes. Due to its long half-life, psychotic symptoms may persist for days.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 5-10mg | 10-25mg | 25-40mg | 40mg+ |
| Insufflated | 1-5mg | 5-15mg | 15-25mg | 25mg+ |
| Vaporized | 2-5mg | 5-10mg | 10-20mg | 20mg+ |
| Smoked | 2-5mg | 5-10mg | 10-20mg | 20mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | After Effects | Total |
|---|---|---|---|---|---|---|
| Oral | 15-30 min | 30-60 min | 1-2 hrs | 1-3 hrs | 2-12 hrs | 120-0 min |
| Insufflated | 2-5 min | 5-15 min | 30-90 min | 1-2 hrs | 2-12 hrs | 120-0 min |
| Vaporized | 0-2 min | 2-5 min | 15-45 min | 30-60 min | 1-12 hrs | 120-0 min |
| Smoked | 0-6 min | - | 30-90 min | 1-4 hrs | 1-8 hrs | 120-0 min |
Tolerance
Build-up
develops rapidly with compulsive redosing
Reset
a few days for acute effects
Cross-tolerance
Effects
Positive
- Stimulation
- Increased energy/alertness
Negative
- Increased heart rate
- Vasoconstriction
- Teeth grinding
- Temperature regulation suppression
- Weight loss
- Sweating
- Headache
- Increased blood pressure
- Increased perspiration
- Seizure
- Abnormal heartbeat
- Dry mouth
- Muscle twitching
- Decreased need for sleep
- Decreased appetite
- Distrubed sleep patterns
- Bruxia
- Difficulty urinating
- Restless legs
- Spontaneous bodily sensations
- Mouth numbing
- Brightness alteration
Positive
- Euphoria
- Cognitive euphoria
- Focus enhancement
- Motivation enhancement
- Analysis enhancement
- Increased sociability
- Mood lift
- Wakefulness
- Immersion intensification
Negative
- Compulsive redosing
- Anxiety
- Paranoia
- Agressiveness
- Delusion
- Depression
- Irritability
- Thought deceleration
- Analysis suppression
- Cognitive fatigue
- Psychosis
- Motivation depression
- Thought acceleration
- Ego inflation
- Time distortion
- Excessive talking
- Moodiness
- Peripheral information misinterpretation
- Feelings of impending doom
- Focus intensification
Positive
- Increased libido
- Tactile enhancement
- Increased music appreciation
Negative
- Disinhibition
- Appetite suppression
- Dehydration
- Visual acuity suppression
- Increase sexuality
- Visual and audiotory hallucinations itchiness
- Auditory hallucination
- Auditory distortion
- Vibrating vision
- Drifting
- Tactile intensification