Summary and History

Cyclopropylmescaline, also known as CPM and 4-cyclopropylmethoxy-3, Is a relatively unknown psychedelic hallucinogenic drug created by Alexander Shulgin. It was tested at 70 and 80 mg and had varied effects from dose to dose. Inability to sleep was a common problem on both drugs, and like many hallucinogenics there were effects such as enhanced appreciation for music and art, discussion of philosophy etc... . Caution should be used with this drug as little is known about its pharmacology and therefore its potential negative physical effects are unknown and could be dangerous.


Light: 50-60mg

Moderate: 60-70mg

Strong/Heavy: 70-80mg + (The creator recommends using caution when dosing above 80mg)


12-18 Hours (Duration increases as dosage increases)


Very little is known about the pharmacology of CPM. We do not know how it is metabolized nor how much is toxic.



  • Enhanced appreciation for music
  • Enhanced cognition/ discussion
  • Closed eye visuals


  • Insomnia

Harm Reduction

Caution: not much is known about how CPM affects the body, be cautious with doses and how you use it.


Top Contributors