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Summary sheet: Proscaline
Chemical Nomenclature
Common names Proscaline
Substitutive name 4-propyloxy-3,5-dimethoxyphenethylamine
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 10 mg
Light 15 - 30 mg
Common 30 - 40 mg
Strong 40 - 60 mg
Heavy 60 mg +
Total 8 - 12 hours
Onset 30 - 60 minutes
After effects 3 - 5 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.


4-Propyloxy-3,5-dimethoxyphenethylamine (commonly known as Proscaline) is a synthetic psychedelic substance of the phenethylamine chemical class that produces modified mescaline-like hallucinogenic effects when administered.[1] It has structural and pharmacological properties similar to its parent drug mescaline as well as to its analogs such as isoproscaline, escaline and allylescaline.

The synthesis of proscaline was first published by David E. Nichols in 1977.[2] Around the same time, Alexander Shulgin sampled and evaluated the chemical at doses up to 60mg, estimating its potency as five times that of mescaline.[3] Shulgin later documented Proscaline in his 1991 book "PiHKAL: A Chemical Love Story".

Today, proscaline is primarily used as a recreational drug, rarely if ever sold on the streets and almost exclusively obtained as a grey area research chemical through the use of online vendors. It is relatively obscure and has only a short history of human use.


Proscaline, or 3,5-dimethoxy-4-propyloxyphenethylamine, is a substituted phenethylamine featuring a phenyl ring bound to an amino -NH2 group through an ethyl chain. Proscaline contains two methoxy functional groups CH3O- which are attached to carbons R3 and R5 as well as an additional propyloxy group at carbon R4 of the phenyl ring. Proscaline is the 4-propyloxy analog of mescaline, which means it has one additional carbon at the alkyloxy group than escaline, another closely related mescaline analog.


Further information: Serotonergic psychedelic

Proscaline'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 they result in the psychedelic experience continues to remain elusive.

Subjective effects

This subjective effects section is a stub.

As such, it is still in progress and may contain incomplete or wrong information.

You can help by expanding or correcting it.

Disclaimer: The effects listed below are cited from the Subjective Effect Index (SEI), which relies on assorted anecdotal reports and the personal experiences of PsychonautWiki contributors. As a result, they should be taken with a healthy amount of skepticism. It is worth noting that these effects will not necessarily occur in a consistent or reliable manner, although higher doses (common+) are more likely to induce the full spectrum of reported effects. Likewise, adverse effects become much more likely on higher doses and may include serious injury or death.

Experience reports

There are currently no anecdotal reports which describe the effects of this compound within our experience index. Additional experience reports can be found here:

Toxicity and harm potential

The toxicity and long-term health effects of recreational proscaline use do not seem to have been studied in any scientific context and the exact toxic dosage is unknown. Anecdotal evidence from people who have tried proscaline within the psychedelic community suggests that there are no negative health effects attributed to trying this drug, but nothing can be completely guaranteed.

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

Tolerance and addiction potential

Proscaline is not habit-forming and the desire to use it can actually decrease with use. It is most often self-regulating.

Tolerance to the effects of proscaline are 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). proscaline presents cross-tolerance with all psychedelics, meaning that after the consumption of proscaline all psychedelics will have a reduced effect.

Legal issues


This legality section is a stub.

As such, it may contain incomplete or wrong information. You can help by expanding it.

  • Germany: Proscaline is controlled under the NpSG (New Psychoactive Substances Act) as of November 26, 2016.[4][5] Production and import with the aim to place it on the market, administration to another person and trading is punishable. Possession is illegal but not penalized.[6]
  • United Kingdom: Proscaline is a Class A controlled substance as it is covered by the phenethylamine derivatives clause of the Misuse of Drugs Act of 1971.[citation needed]
  • United States: Proscaline is uncontrolled in the United States, but could be considered an analogue of mescaline under the Federal Analogue Act.[citation needed]

See also

External links


  1. Alexander Shulgin - PIHKAL |
  2. "Lipophilicity and serotonin agonist activity in a series of 4-substituted mescaline analogues." Nichols DE, Dyer DC. J Med Chem. 1977 Feb;20(2):299-301.
  3. Shulgin, Alexander. "Pharmacology Lab Notes #2". Lafayette, CA. (1976-1980). p209 ( |
  4. "Gesetz zur Bekämpfung der Verbreitung neuer psychoaktiver Stoffe" (PDF) (in German). Bundesanzeiger Verlag. Retrieved December 10, 2019. 
  5. "Anlage NpSG" (in German). Bundesministerium der Justiz und für Verbraucherschutz. Retrieved December 10, 2019. 
  6. "§ 4 NpSG" (in German). Bundesministerium der Justiz und für Verbraucherschutz. Retrieved December 10, 2019.