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Atmosphere and feature ratings above are based on Best Retreats research (November 2026). They will be updated if Medicina Trascendental submits its own information.

Medicina Trascendental: An In-Depth Review for Ayahuasca Ceremonies in Mexico City and Retreats in Peru

Medicina Trascendental (also “The Healing Grandma”) is a collective led by Argentine guide Inti Miski that sells private ayahuasca ceremonies in the Roma Sur district of Mexico City for $320 and a 10-day retreat with Shipibo healers near Pucallpa, Peru, for $3,500, alongside changa (smokable DMT), psilocybin mushroom and wachuma (San Pedro) ceremonies in Mexico and Argentina, per its Retreat Guru page. Ceremonies are private or small. Against that, its ayahuasca page claims “the toxicity is zero” and that ayahuasca can treat schizophrenia, it publishes no screening, contraindications, medical staff or emergency plan for ayahuasca, it has no reviews, and no one gives a legal name or company.

🎯 At a Glance

• Locations: Private ceremonies on Avenida Baja California in Roma Sur, Mexico City, per its ayahuasca program page; the Peru retreat is held in healers’ communities near Pucallpa, and wachuma programs in Amatlán (Morelos), Desierto de los Leones, Teotihuacán and Andalgalá, Argentina.
• Approach: Private ayahuasca ceremonies in the city and, in Peru, eight ceremonies with plant purges, tobacco cleansing and flower baths over ten days; the lead guide also lists bufo, kambo and other medicines in his practice.
• Suitable For: Experienced adults who can screen themselves and accept the legal risk of ceremonies in Mexico City. Not suitable for people taking antidepressants or with heart or psychiatric conditions.
• Costs: $320 for a private ayahuasca ceremony and $3,500 for the ten-day Peru retreat, per its Peru program page; changa is $250, mushrooms $420 and wachuma retreats $1,800 to $3,399. No refund terms are published for the ayahuasca programs, and Retreat Guru notes that its payments do not cover the medicine.
• Overall Assessment: Private, flexible ceremonies with named Shipibo healers in Peru, offset by unsupported medical claims, no published safeguards for ayahuasca, no track record and an opaque operator. Directory evaluation: D.

💬 What Guests Are Saying

Medicina Trascendental has no reviews on Retreat Guru, and its BookRetreats pages now redirect to a general search page. No reviews were found on Google, Tripadvisor or other directories. If you have attended, we encourage you to share your experience through our submission form.

🚩 Incident Report

We searched review platforms and English and Spanish-language news for reports involving Medicina Trascendental, Inti Miski (Sanken Nima), Mamacuna and its named healers.

• Deaths and serious injuries: None found.
• Sexual misconduct: No allegations found.
• Theft and fraud: None found.
• Legal action: None found.

Its own ayahuasca page says that “due to the accidents presented with Ayahuasca in Mexico” the collective decided “not to promote its consumption until further notice”, without dates or details, while still selling the ceremony. The guides use spiritual names only, which limits this search.

If you have experienced or witnessed an incident with this center, please report it confidentially.

🔍 Critical Notes

Who runs it. Inti Miski, also called Sanken Nima, describes himself as an Argentine traditional therapist and academic researcher based in Mexico City with a Shipibo-Conibo ayahuasca line and postgraduate studies in progress, per his center profile (unverified). Wachuma is led with Mamacuna, described as an Inca priestess over 70. The Peru program names Shipibo healers Asencia Sanchez, Wilder Muñoz Sánchez and Mateo Arévalo Maynas (unverified). The center’s mission mentions “modern doctors”, but none is named, and no legal names, company or tax registration appear.

Screening and medical support. The ayahuasca and Peru pages describe no medical questionnaire, contraindications, medical staff, emergency protocol or structured integration; the only medication guidance is on a wachuma page, which asks guests with heart, psychiatric and other conditions to “consult the guide”. The claim that ayahuasca can treat schizophrenia runs against standard practice, which treats psychotic disorders as a reason to exclude guests.

Listings. The Retreat Guru profile map shows Andalgalá, Argentina while the programs are in Mexico City, amenity tags such as a spa and pool conflict with “humble” houses, and the Peru page says its information will be updated “in the coming weeks”.

Status. Bookable for open dates as of November 2026; the latest dated event was a wachuma ceremony in March 2025.

Legal context. Mexico’s General Health Law lists DMT and psilocybin mushrooms among its most restricted substances, per a transcription of article 245, and in September 2026 authorities seized 930 g of ayahuasca from Peru at Mexico City airport, per ADN40. Ayahuasca is legal in Peru, per ICEERS.

🆘 Screening & Mental Health Risks

A claim that ayahuasca has “zero” toxicity, with no published contraindications, may lead vulnerable guests to underestimate real risks. ICEERS notes that ayahuasca’s MAOI component makes it dangerous with SSRIs and other serotonergic drugs and that it is contraindicated for people prone to psychosis. Never stop a psychiatric medication to qualify for a ceremony without your prescriber’s guidance.

🧪 Brew Substance

Ayahuasca served by Inti Miski in Mexico City and by Shipibo healers in Peru; the source of the brew used in Mexico is not published. Ayahuasca combines the Banisteriopsis caapi vine with a DMT-containing leaf such as chacruna, as Erowid explains.

📍 Location, Setting & Style

• Setting: An urban apartment-style space in central Mexico City for ceremonies; the Peru retreat is in the hot Ucayali rainforest.
• Rooms: No lodging for city ceremonies; simple traditional houses for retreats.
• Style: Shipibo-influenced ceremony run by an Argentine guide, alongside Andean wachuma and other medicines.

Practical guidance: City ceremonies are in Roma Sur, a short taxi ride from Mexico City airport (MEX); for Peru, fly to Pucallpa (PCL).

Should You Book?

Only with caution. Ask in writing for the guides’ legal names and training, where the brew comes from, the screening questions and contraindication list, who is trained in first aid and which hospital is used, what the “accidents” note refers to, the refund terms, and the legal entity you are paying. Read our guide to verifying retreat facilitators.

The Team & Story

Medicina Trascendental describes itself as a collective of traditional doctors, therapists and healers; its gallery dates from 2023. We did not independently verify anyone’s training.

Prep & Integration Tips

Before you go: Disclose every medication and condition in writing, plan any change with your own doctor, and tell someone where the ceremony is held. After you return: Arrange support from a qualified therapist at home. Our guide on how to research ayahuasca incidents can help you check any center.

Pros & Cons

Book Your Ceremony

Programs are listed on Retreat Guru. Best Retreats does not take bookings; learn more about our mission.

Last reviewed November 2026.

This article is for informational purposes only and is not medical advice. Consult a qualified medical professional.