Sapo In My Soul

The Matsés Frog Medicine

The story of the Western world’s discovery of Sapo/Kambo,

and a guidebook to using the medicine traditionally

-By Peter Gorman


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Foreword by Morgan Maher


The Phyllomedusa bicolor frog


1. The Matsés and Sapo - My Introduction to Both the Tribe and Their Medicine

2. The Back Story on Sapo

3. Sapo’s Sister Medicine, Nü-nü

4. Sapo and Other Medicines Used in Conjunction with Ayahuasca

5. Matsés and Spiritual Beliefs

6. What the Frog Means to Me

7. Sapo Strength and the Traditional Way to Collect and Preserve the Medicine

8. The Benefits of Sapo Use Outside of the Jungle

9. The Traditional Application of Sapo, the Changing Paradigm and the Crazy Things Some People Do

10. Basic Precautions When Using Sapo

11.Sapo with My Kids

12. One More Sapo Story





1. The Science of Sapo

2. How the Twin Camps of Remoyacu and Buen Peru Came to be Burned and Abandoned

3. Two Major Problems When Communicating with the Matsés -

4. Matsés Hierarchy

5. More Recent Sapo/KamboReports and the Modern-day Threat to the Matsés’ Intellectual Property Rights

6. Last Meeting with Pablo




• • • •



Adventurous, courageous and foolish in fairly equal measures, Peter has drunk, snorted, inhaled and otherwise extensively fed deeply from the ingenious pharmacopoeia of the Amazonian shamans. In his latest tale Sapo In My Soul, he recounts his dramatic discovery of the use of sapo frog among the Peruvian Matsés natives. Using his well-developed eye for detail and driven by innate curiosity, Gorman shares his early days of sapo discovery, and sets the scene for the examination of sapo’s novel peptides by pharmaceutical entities.”

Observant, self-revealing, at times funny and always raging forward, Peter Gorman reminds me that people at the margins define any endeavor. Gorman, with his rough talk, his journalist’s eye, his seemingly alarming lack of regard for personal safety and his various well detailed mishaps, makes an ideal narrator for this tale. Discoveries are many, and researchers are always coming up with new candidates for drug development. But in Peter Gorman’s narration, the use and investigation of sapo simultaneously fascinates and entertains, albeit in an often squirmingly uncomfortable way.”

This is a wonderful account. And Peter’s portrayal of sapo reminds readers that the wild is very wild indeed.”

Chris Kilham, author of The Ayahuasca Test Pilots Handbook, The Essential Guide To Ayahuasca Journeying


Unlike ayahuasca, the purgative venom of the Phyllomedusa bicolor tree frog, or sapo, is called ‘ordeal medicine’ by the Matsés natives. Peter Gorman’s new book charts his personal rediscovery of sapo, as well as his ongoing love story with the jungles of South America and the people and spirits that inhabit it. Gorman has gone through a tremendous ordeal to bring this timely medicine to the global tribe; reading it will not kill you, but it will make you stronger.

Rak Razam, author/producer Aya: Awakenings


This is pure Peter Gorman. Story telling, adventure and science rolled into one enjoyable read.

Lynn Chilson, seeker and former NASA scientist



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