| Last updated
Daniel Florian went missing on 13 April after visiting an indigenous reserve in the southwestern Putumayo region.
During his stay he participated in an indigenous shaman ritual, which involved drinking psychedelic Yage tea, according to local media reports.
He was reported missing by his family in Munich, and seven days after his disappearance, he was discovered by Colombian soldiers.
In a video recorded by the army, he told his saviours that he was 'not so good'.
He added: "I have been eaten by the mosquitoes and by the ants, and I had not good equipment, so I was seven days in the Amazon."
He was taken to the Mocoa Putumayo City Hospital for treatment for dehydration and cuts sustained during his week in the jungle.
In other psychedelics news, the UK's first psychedelic-assisted psychotherapy clinic opened in Bristol last month.
Patients are charged £6,000 ($8,338) for the course, with medical grade ketamine administered by a doctor in a strictly controlled environment at four of eleven psychotherapy sessions.
The sessions last two hours and afterwards patients are taken to a 'chill out' area, where they can stay as long as they like before going home - though they won't be permitted to drive.
It is hoped it will enable treatment-resistant patients to 'access parts of themselves not otherwise easily available'.
For Grant Plant, ketamine-assisted treatment enabled him to do exactly this, after his alcohol use escalated following a bereavement and a divorce.
The 53-year-old events manager said: "During the ketamine psychotherapy sessions, I felt I was able to access a part of my unconscious where I hadn't gone before.
"Together with the talking therapy, I was able to process the reasons behind my drinking, reset my brain and begin a new life as a permanently sober man."
Awakn is also looking into other therapeutic regimes which are currently in late-stage clinical research, including adjunct therapy using MDMA.
Further clinics are scheduled to open in London and Manchester later this year.
Chosen for YouChosen for You
Most Read StoriesMost Read