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2C-P is very difficult to dose properly.

Due to its unusually slow onset, long duration, and steep dose-response curve, it is strongly discouraged to re-dose 2C-P earlier than every 3 hours to a total of 2 milligrams above a previously evaluated dose. Also, even for experienced trippers, it is advised to not go above a common dose for the first time (see dosage table) per 70 kg body weight, as the session will last for several times longer compared to most psychedelics. Please see this section for more details.

Summary sheet: 2C-P
Chemical Nomenclature
Common names 2C-P
Substitutive name 2,5-Dimethoxy-4-propylphenethylamine
Systematic name 2-(2,5-Dimethoxy-4-propylphenyl)ethanamine
Class Membership
Psychoactive class Psychedelic
Chemical class Phenethylamine
Routes of Administration

WARNING: Always start with lower doses due to differences between individual body weight, tolerance, metabolism, and personal sensitivity. See responsible use section.

Threshold 1 mg
Light 2 - 6 mg
Common 6 - 10 mg
Strong 10 - 16 mg
Heavy 16 mg +
Total 10 - 20 hours
Onset 1 - 3 hours
Come up 2 - 4 hours
Peak 4 - 8 hours
Offset 3 - 6 hours
After effects 8 - 48 hours

DISCLAIMER: PW's dosage information is gathered from users and resources for educational purposes only. It is not a recommendation and should be verified with other sources for accuracy.


2,5-Dimethoxy-4-propylphenethylamine (also known as 2C-P) is a lesser-known novel psychedelic substance of the phenethylamine class. 2C-P is a relatively obscure member of the 2C-x family of psychedelic phenethylamines, which are closely related to the classical psychedelic mescaline. It is known as one of the most potent, dose-sensitive, and long-lasting of the series. Although the precise mechanism is not known, it is thought to produce its psychoactive effects by activating serotonin receptors in parts of the brain.

2C-P was first synthesized and tested for human activity by the American chemist Alexander Shulgin, who documented his findings in the 1991 book PiHKAL ("Phenethylamines I Have Known and Loved").[1] The reports found in the 2C-P PiHKAL entry remark on its depth and long onset and duration of action, with the commentary section describing 16 mg as a clear overdose with "physical consequences." The commentary also notes the small window separating an adequate dose from an excessive dose, suggesting it is relatively easy to overdose on.

Subjective effects include open and closed-eye visuals, time distortion, conceptual thinking, euphoria, and ego loss. User reports tend to characterize the effects of 2C-P in terms of its unusually long duration, powerful, sometimes overwhelming visuals, and intense "body load" consisting of nausea, muscle tension, and general bodily discomfort. Some reports suggest it may be easier to experience agitation and delirium on 2C-P than other 2C's, perhaps owing to the ease in which it can be mis-dosed. As a result, it is considered to have an unfavorable safety profile among psychedelics.

Very little data exists about the pharmacological properties, metabolism, and toxicity of 2C-P. Due its powerful effects and unusually long duration, 2C-P may be overly intense and difficult to use safely for those who are not highly experienced with hallucinogens. It is strongly advised to use harm reduction practices if using this substance. These include avoiding "eye-balling" (i.e. measuring the dose with the naked eye instead of a reliable milligram scale) and non-oral routes of administration. Volumetric liquid dosing is commonly recommended when dealing with substances of this potency.


2C-P or 2,5-dimethoxy-4-propylphenethylamine is a substituted phenethylamine featuring a phenyl ring bound to an amino (NH2) group through an ethyl chain. 2C-P contains methoxy functional groups CH3O- attached to carbons R2 and R5 and a propyl chain attached to carbon R4 of the phenyl ring. 2C-P belongs to the 2C family of phenethylamines which contain methoxy groups on the 2 and 5 positions of the benzene ring.[1]


Further information: Serotonergic psychedelic

2C-P is a relatively potent and long acting psychedelic phenethylamine of the 2C family which possesses stimulant type effects as well. It was first described by Alexander Shulgin in his book PiHKAL.

2C-P has been shown to produce a variety of intense hallucinogenic type effects ranging from drastic changes in consciousness and perception, to open and closed eye visuals. 2C-P is considered to be one of the strongest 2C-x compounds dosage for dosage, rivaled only by 2C-TFM.

2C-P's psychedelic effects are believed to come from its efficacy at the 5-HT2A receptor as a partial agonist. However, the role of these interactions and how it results in the psychedelic experience continues to remain elusive.

Subjective effects

2C-P's head space and visuals have been described as possessing more similarities to alkylated 2C's like 2C-E than halogenated members like 2C-B or 2C-I.

Disclaimer: The effects listed below cite the Subjective Effect Index (SEI), an open research literature based on anecdotal user reports and the personal analyses of PsychonautWiki contributors. As a result, they should be viewed with a healthy degree of skepticism.

It is also worth noting that these effects will not necessarily occur in a predictable or reliable manner, although higher doses are more liable to induce the full spectrum of effects. Likewise, adverse effects become increasingly likely with higher doses and may include addiction, severe injury, or death ☠.

Physical effects

Visual effects

Experience reports

Anecdotal reports which describe the effects of this compound within our experience index include:

Additional experience reports can be found here:

Toxicity and harm potential

The toxicity and long-term health effects of recreational 2C-P use do not seem to have been studied in any scientific context and the exact toxic dose is unknown. This is because 2C-P is a research chemical with very little history of human usage.

Anecdotal reports suggests that there are no negative health effects attributed to simply trying the substance by itself at low to moderate doses and using it very sparingly (but nothing can be completely guaranteed). Independent research should always be done to ensure that a combination of two or more substances is safe before consumption.

It is strongly recommended that one use harm reduction practices when using this substance.


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2C-P is difficult to dose properly, and requires patience. Be aware that impulsive overdosing can lead to an overdose. Please structure a calculated dosage regimen and stick to it.

  • 2C-P has a steep dose-response curve: As little as a few extra milligrams separating a manageable dose and an overdose.[2] Users who wish to take high doses of this compound are advised to titrate upward slowly, use reliable milligram scales to measure doses, and avoid non-oral routes of administration such as insufflation or injection.
  • 2C-P has a very slow onset: The peak effects reportedly do not occur for 1 to 3 hours.[2] Thus it's advised to wait for at least 3 hours before re-dosing is considered, and even longer for full stomach content.
  • 2C-P has a very long half-life: The anecdotal estimated elimination half-life is 19 hours.[3]

The LD50 of 2C-P has not been established. However, it is believed that 2C-P is likely to have a smaller therapeutic window compared to other 2C's, meaning a lethal dose may be achieved more easily.

In 2017, a 25-year old British female died following the ingestion of a large dose of 2C-P at a music festival.[4] No source reported clear evidence that 2C-P by itself led to the immediate death of the female.

Dependence and abuse potential

As a serotonergic psychedelic, 2C-P is considered to have a low potential for abuse and dependence.

Tolerance to the effects of 2C-P is built almost immediately after ingestion. After that, it takes about 3 days for the tolerance to be reduced to half and 7 days to be back at baseline (in the absence of further consumption). 2C-P produces cross-tolerance with all psychedelics, meaning that after the consumption of 2C-P all psychedelics will have a reduced effect.

Dangerous interactions

Warning: Many psychoactive substances that are reasonably safe to use on their own can suddenly become dangerous and even life-threatening when combined with certain other substances. The following list provides some known dangerous interactions (although it is not guaranteed to include all of them).

Always conduct independent research (e.g. Google, DuckDuckGo, PubMed) to ensure that a combination of two or more substances is safe to consume. Some of the listed interactions have been sourced from TripSit.

Legal status

2C-P is not scheduled under the UN Convention on Psychotropic Substances. It is considered to exist in a legal grey area in many countries, meaning that while it is not specifically illegal, individuals may still be charged for its possession under certain circumstances such as under analogue laws and with the intent to sell or consume.

  • Austria: 2C-P is illegal to possess, produce and sell under the NPSG (Neue-Psychoaktive-Substanzen-Gesetz Österreich). In its Schedule II, the further specifying NPSV (Neue-Psychoaktive-Substanzen-Verordnung Österreich) explicitly bans all substituted phenetylamines.[6]
  • Canada: 2C-P would be considered Schedule III as it is a derivative of 2,5-dimethoxyphenethylamine.[7]
  • China: As of October 2015, 2C-P is a controlled substance in China.[8]
  • Denmark: 2C-P is on the list of Schedule B controlled substances.[9]
  • Germany: 2C-P is controlled under Anlage I BtMG (Narcotics Act, Schedule I)[10] as of December 13, 2014.[11] It is illegal to manufacture, possess, import, export, buy, sell, procure or dispense it without a license.[12]
  • Japan: 2C-P is a controlled substance in Japan effective March 25th, 2015.[13]
  • Latvia: 2C-P is a Schedule I controlled substance.[14]
  • Switzerland: 2C-P is a controlled substance specifically named under Verzeichnis E.[15]
  • Turkey: 2C-P is a classed as drug and is illegal to possess, produce, supply, or import.[16]
  • The Netherlands: 2C-P is currently legal, but it is part of a substance group that may be banned soon as part of a recently passed law on New Psychoactive Substances (NPS). [17]
  • United Kingdom: 2C-P is a Class A drug in the United Kingdom as a result of the phenethylamine catch-all clause.[18]
  • United States: 2C-P is a Schedule I controlled substance.[19] This means 2C-P is illegal to manufacture, buy, possess, process, or distribute without a license from the Drug Enforcement Administration (DEA).

See also

External links



  1. 1.0 1.1 Alexander Shulgin; Ann Shulgin (1991). "#36. 2C-P". PiHKAL: A Chemical Love Story. United States: Transform Press. ISBN 0963009605. OCLC 1166889264. 
  2. 2.0 2.1 Erowid Online Books : “PIHKAL” - #36 2C-P 
  3. https://pubmed.ncbi.nlm.nih.gov/28130544/
  4. Steven Morris (February 13, 2019). "Bestival death may be world's first 2C-P fatality, court hears". The Guardian. Retrieved October 12, 2020. 
  5. Talaie, H.; Panahandeh, R.; Fayaznouri, M. R.; Asadi, Z.; Abdollahi, M. (2009). "Dose-independent occurrence of seizure with tramadol". Journal of Medical Toxicology. 5 (2): 63–67. doi:10.1007/BF03161089. ISSN 1556-9039. 
  6. "Bundesrecht konsolidiert: Gesamte Rechtsvorschrift für Neue-Psychoaktive-Substanzen-Verordnung" (in German). June 26, 2019. Retrieved January 10, 2021. 
  7. "Schedule III". Controlled Drugs and Substances Act (CDSA). Isomer Design. Retrieved October 10, 2020. 
  8. "关于印发《非药用类麻醉药品和精神药品列管办法》的通知" (in Chinese). 国家食品药品监督管理总局 [China Food and Drug Administration (CFDA)]. September 27, 2015. Archived from the original on September 6, 2017. 
  9. "Bekendtgørelse om euforiserende stoffer" (in Danish). Civilstyrelsen [Civil Agency]. May 31, 2011. BEK Nr. 557. Retrieved December 10, 2019. 
  10. "Gesetz über den Verkehr mit Betäubungsmitteln: Anlage I" (in German). Bundesamt für Justiz [Federal Office of Justice]. Retrieved December 10, 2019. 
  11. "Achtundzwanzigste Verordnung zur Änderung betäubungsmittelrechtlicher Vorschriften" (PDF). Bundesgesetzblatt Jahrgang 2014 Teil I Nr. 57 (in German). Bundesanzeiger Verlag (published December 12, 2014). December 5, 2014. p. 1999-2002. ISSN 0341-1095. OCLC 231871244. 
  12. "Gesetz über den Verkehr mit Betäubungsmitteln: § 29" (in German). Bundesamt für Justiz [Federal Office of Justice]. Retrieved December 10, 2019. 
  13. "危険ドラッグの成分16物質を新たに指定薬物に指定" (in Japanese). 厚生労働省 [Ministry of Health, Labour and Welfare (MHLW)]. Retrieved May 2, 2022. 
  14. "Noteikumi par Latvijā kontrolējamajām narkotiskajām vielām, psihotropajām vielām un prekursoriem" (in Latvian). VSIA Latvijas Vēstnesis. November 10, 2005. Retrieved January 1, 2020. 
  15. "Verordnung des EDI über die Verzeichnisse der Betäubungsmittel, psychotropen Stoffe, Vorläuferstoffe und Hilfschemikalien" (in German). Bundeskanzlei [Federal Chancellery of Switzerland]. Retrieved January 1, 2020. 
  16. "Bakanlar Kurulu Kararı - Karar Sayısı : 2011/1310". Resmî Gazete, Sayı: 27845 (in Turkish). Başbakanlık Mevzuatı Geliştirme ve Yayın Genel Müdürlüğü [General Directorate of Legislation Development and Publication] (published February 13, 2011). January 7, 2011. 
  17. Wijziging van de Opiumwet in verband met het toevoegen van een derde lijst met als doel het tegengaan van de productie van en de handel in nieuwe psychoactieve stoffen en enkele andere wijzigingen (Dutch), 2024 
  18. "Schedule 2: Part I: Class A Drugs". "Misuse of Drugs Act 1971". UK Government. Retrieved August 20, 2020. 
  19. Ronald Weich (Assistant Attorney General) (September 30, 2011). "Additional Synthetic Drugs for Inclusion in section 202(c) of the Controlled Substances Act" (PDF). Letter to F. James Sensenbrenner Jr. (Subcommittee on Crime, Terrorism, and Homeland Security). Office of Legislative Affairs.