MD-PHP (3,4-methylenedioxy-α-pyrrolidinohexanophenone) is a synthetic cathinone one carbon longer than MDPV, often sold as brown HCl powder or freebase 'monkey-dust'. Users report shorter, less euphoric effects than MDPV with strong compulsive redosing. Fatal overdose cases show blood levels 140-780 ng/mL with pulmonary edema and cardiac arrest. Batch purity has been highly variable with misrepresentation common. Oral dosing is least compulsive; vaporized freebase produces intense rush and highest abuse liability.
MDPHP molecular structure diagram from the DrugsPRO substance library.
Also known as: 3,4-mdphp, Monkey-dust, Methylenedioxypyrrolidinohexiophenone, Methylenedioxypyrolidinohexiophenone, Zombie dust, 3,4-Methylenedioxy-alpha-pyrrolidinohexanophenone
Classification
Chemical: Cathinone
Psychoactive: Entactogen
Psychoactive: Stimulant
Tag: Habit-Forming
Tag: Pyrrolidine
Tag: Pyrrolidinophenone
Tag: Research-Chemical
Tag: Synthetic cathinone
Tag: Tentative
Effects
Stimulation
Physical Euphoria
Teeth Grinding
Vasoconstriction
Increased Heart Rate
Increased Blood Pressure
Focus Intensification
Motivation Enhancement
Ego Inflation
Compulsive Redosing
Anxiety
Paranoia
Increased Libido
Disinhibition
Increased Music Appreciation
Appetite Suppression
Sexual Enhancement
Tactile Enhancement
Routes of Administration
Oral
Dosage
Threshold: 5-10 mg
Light: 10-20 mg
Common: 20-40 mg
Strong: 60–100 mg
Heavy: 100+ mg
Duration
Onset: 0.5-1.5 h
Comeup: 0.5-1 h
Peak: 1-3 h
Offset: 2-4 h
After Effects: 6-24 h
Total Duration: 4-10 h
Insufflated
Dosage
Threshold: 1-5 mg
Light: 5-10 mg
Common: 10-20 mg
Strong: 20-30 mg
Heavy: 60+ mg
Duration
Onset: 0.08-0.25 h
Comeup: 0.25-0.5 h
Peak: 0.5-2 h
Offset: 2-3 h
After Effects: 6-24 h
Total Duration: 2-6 h
Vaporized
Dosage
Threshold: 2-5 mg
Light: 5-10 mg
Common: 10-25 mg
Strong: 25-40 mg
Heavy: 40+ mg
Duration
Comeup: 0.08-0.25 h
Peak: 0.5-1.5 h
Offset: 0.3-1 h
After Effects: 6-24 h
Onset: 0-0.05 h
Total Duration: 0.5-2 h
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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MDPHP - DrugsPRO anyag útmutató
MDPHP: MD-PHP (3,4-methylenedioxy-α-pyrrolidinohexanophenone) is a synthetic cathinone one carbon longer than MDPV, often sold as brown HCl powder or freebase 'monkey-dust'. Users report shorter, less euphoric effects than MDPV with strong compulsive redosing. Fatal overdose cases show blood levels
