Stimulants

α-PiHP

Street names: A-PIHP, alpha-PiHP, α-pyrrolidinoisohexanophenone

Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines

⚡What it does

α-PHP's isomer — potent pyrovalerone stimulant: euphoria, compulsive redose, days-long binges

Also known asA-PIHP, alpha-PiHP, α-pyrrolidinoisohexanophenone

CategoryStimulants

Schedule / classControlled several EU (2022+); analogue US

AppearanceWhite/yellowish crystals

Street price~$15–$35/g

Legal statusControlled EU 2022+; analogue US

Last updated2026-09-18

Sources: EMCDDA, NPS-AD

Substance	Class	Top risks	Street price
α-PiHP	Controlled several EU	The post-α-PVP wave cathinone: same bath-salt psychosis profile; Binge-compulsion extreme; sleep-deprivation psychosis	~$15–$35/g
α-PHP	Analogue prosecutions	Binge-compulsion; sleep deprivation psychosis; Little human data	~$15–$40 per gram
MDPV	Schedule I	The original 'bath salts' panic drug — psychosis, self-harm reports; Very compulsive redosing	~$15–$40 per gram
α-PVP (Flakka)	Schedule I	Notorious for psychotic episodes ('flakka zombies' media panic); Extreme compulsive redosing	~$10–$30 per gram

Street prices are regional estimates. Potency and cuts vary constantly.

What does α-PiHP look like?

White/yellowish crystals

What are the signs of a α-PiHP overdose?

Severe paranoia, hallucinations; Racing heart; Hyperthermia Call emergency services immediately.

How addictive is it?

The post-α-PVP wave cathinone: same bath-salt psychosis profile Dependence can develop with regular use.

Facts on this page are compiled from these primary sources. External links open in a new tab.