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A-PHP
Dosage & Duration
Dosage
Doses are population estimates that vary widely between individuals.
Duration
Subjective Effects
Pharmacology
Interactions
An unlisted combination is an unknown one, not a safe one. Check a dedicated combination chart before mixing.
Tolerance
Harm Potential
Addiction & Dependence
Psychological
Extremely HighChronic use is regarded as highly addictive, with substantial abuse potential and a capacity to cause psychological dependence. A-PHP is especially associated with compulsive redosing, where users may find it extremely difficult to stop taking more even after psychotic symptoms appear. Abruptly stopping after sustained use may be followed by cravings and withdrawal symptoms.
Toxicity
Because its rush can be very powerful, α-PHP may produce uncomfortable or painful cardiac sensations, particularly with abuse or prolonged use; sudden spikes of blood pressure may manifest as an extremely uncomfortable sensation, particularly when vaporized or injected.
Psychosis Risk
Can result in stimulant psychosis presenting with paranoia, hallucinations, or delusions, particularly when dosed too highly or frequently. A review of treatment for similar stimulant-induced psychosis reports that approximately 5-15% of users do not fully recover. Psychotic and schizophrenic symptoms may occur even before users stop redosing, and delusional states are commonly reported when the substance is abused.
Seizure Risk
Misuse may make seizures more likely in some individuals by reducing the seizure threshold.
History & Culture
Legality
International
UN Convention on Psychotropic Substances Schedule II (added March 2020)
By Country
References
Source Pages
Citations
- Suchtgiftverordnung Anl. 4 — Bundesrecht konsolidiert, Fassung vom 02.09.2026. ris.bka.gv.at (n.d.). https://www.ris.bka.gv.at/NormDokument.wxe?Abfrage=Bundesnormen&Anlage=4&Artikel=&FassungVom=2026-09-02&Gesetzesnummer=10011053&Paragraf=&ShowPrintPreview=True&Uebergangsrecht=1
- BGBl. II Nr. 9/2021 — Verordnung, mit der die Suchtgiftverordnung geändert wird. ris.bka.gv.at (n.d.). https://www.ris.bka.gv.at/Dokumente/BgblAuth/BGBLA_2021_II_9/BGBLA_2021_II_9.pdf1
- Suchtmittelgesetz § 27 — Bundesrecht konsolidiert, Fassung vom 02.09.2026. ris.bka.gv.at (n.d.). https://www.ris.bka.gv.at/NormDokument.wxe?Abfrage=Bundesnormen&Anlage=&Artikel=&FassungVom=2026-09-02&Gesetzesnummer=10011040&Paragraf=27&ShowPrintPreview=True&Uebergangsrecht=1
- Neue-Psychoaktive-Substanzen-Gesetz § 1 — Bundesrecht konsolidiert, Fassung vom 21.08.2026. ris.bka.gv.at (n.d.). https://www.ris.bka.gv.at/NormDokument.wxe?Abfrage=Bundesnormen&Anlage=&Artikel=&FassungVom=2026-08-21&Gesetzesnummer=20007605&Paragraf=1&ShowPrintPreview=True&Uebergangsrecht=1
- Portaria nº 344, de 12 de maio de 1998 — current consolidated text, Anexo I, Lista F2. anvisalegis.datalegis.net (n.d.). https://anvisalegis.datalegis.net/action/ActionDatalegis.php?acao=abrirTextoAto&tipo=POR&numeroAto=00000344&seqAto=000&valorAno=1998&orgao=SVS/MS&codTipo=&desItem=&desItemFim=&cod_menu=1696&cod_modulo=134&pesquisa=true1
- Resolução de Diretoria Colegiada - RDC nº 473, de 24 de fevereiro de 2021. anvisalegis.datalegis.net (n.d.). https://anvisalegis.datalegis.net/action/ActionDatalegis.php?acao=abrirTextoAto&tipo=RDC&numeroAto=00000473&seqAto=000&valorAno=2021&orgao=RDC/DC/ANVISA/MS&codTipo=&desItem=&desItemFim=&cod_menu=1696&cod_modulo=134&pesquisa=true1
- Lista de substâncias sujeitas a controle especial no Brasil. gov.br (n.d.). https://www.gov.br/anvisa/pt-br/assuntos/medicamentos/controlados/lista-substancias1
- 我国管制毒品目录(2026年7月更新,540种+三大类). ga.sz.gov.cn (n.d.). https://ga.sz.gov.cn/SZJDZX/SZBMFW/content/post_12898420.html1
- 麻醉药品和精神药品管理条例. xzfg.moj.gov.cn (n.d.). https://xzfg.moj.gov.cn/front/law/detail?LawID=1744&Query=%E7%B2%BE%E7%A5%9E%E7%B2%BE%E7%A5%9E1
- 三部门联合发布最新版《非药用类麻醉药品和精神药品目录》. btgaj.xjbt.gov.cn (n.d.). https://btgaj.xjbt.gov.cn/c/2025-07-28/8428464.shtml1
Further Reading
Article Status
Step 1 · Automated synthesisAn autonomous workflow built by Josie Kins compiled this article's foundation from information published across the web.
- Step 2 · First-pass reviewPending
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Recent changes7 human edits · latest
Times are UTCNewest first
24 January 2026
Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more
Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more
Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more
Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more
Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more
Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more
Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more
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