San Pedro cactus basic info


San Pedro is a columnar cactus traditionally used for religious and medical objectives in certain parts of South America. Other cactus species that belong to the botanical genus Echinopsis are also famous by this name, mainly Echinopsis peruviana although there are other varities such as E. santaensis, E. puquiensis, and E. schoenii.

Chemical composition and dosage

Mescaline is the initial alkaloid of the San Pedro cactus and lophophine, hordenine, DMPEA, and lobivine have been detected.

Mescaline is largely concentrated in the green skin of the outside part of the cactus, and the focus of this alkaloid can change greatly depending on the species and the specimen. Some analyses found concentrations ranging from 0.054% to 4.6% of the full weight of the cactus. Thus the amount of San Pedro required to introduce psychoactive effects can change considerably.

In the past, it was trusted that E.peruvianus was more much potent than E.pachanoi, anyway, taking into account more new analyses and a broad review of the different studies, the difference is not verified and it seems that the mescaline concentration in both species is extremely similar.

Dosage of mescaline

The dynamic dose of oral mescaline hydrochloride is between 150 and 700 milligrams. Customary doses of mescaline have been calculated on 3.76 mg/kg of weight.

  • Low dose: 100 – 200 mg
  • Threshold dose: 100 mg
  • Average dose: 200 – 300 mg
  • High dose: 300 – 500 mg


The effects of E. pachonaoi are largely due to the alkaloids it contains, in particular mescaline. The alkaloid content is similar to that of peyote, and so the subjective effects are similar as well.

San Pedro preparations tend to have an unpleasant and bitter flavor, it is therefore not uncommon for vomiting and nausea to happen after ingestion, although mescaline itself may be cause of some of these effects.

The psychological effects of San Pedro Cactus Powder for sale are generally described as being similar to those of peyote and mescaline, although the doses used traditionally do not seem to be top enough to generate a psychoactive experience. Anyway, neo-shamanic groups use higher doses of San Pedro, so the effects that happen are similar to those generated by “classical psychedelics,” such as psilocybin and LSD. These contain:

  • Deep change in perception, cognition and consciousness
  • Vision with eyes closed and open
  • Insightful psychological experiences
  • Spiritual experiences
  • Changes in the perception of space and time


Arte - Apreciación Artística




  • Internet - Información












Autor: John Smith

Fecha de publicación : 2021-11-02 05:43:34

Responsive image