Here is an extract from a book called "Happy High Herbs" by Ray Thorpe"
Ritual and Cultural Use:
The Mazatecans were reported to have used this now common garden plant and a cousin to salvia divinorum for shamanic purposes.
Ray's Rave:
One person well known to the author said he enjoyed an excellent time from holding one hundred leaves in his mouth for half an hour without swallowing swalloing saliva (and that is not easy!). He didn't enjoy the taste however, but said it was less bitter than doing the same with salvia divinorum leaves!
Some New Zealanders have reported effects from coleus 'tea' made by drinking 100 coleus leaves soaked in cold water for 12 hours or so.
Coleus (like salvia divinorum) is not supposed to work as an infusion because the stomach nullifies any active ingredients.
So if you want to experiment with this one, good luck to you; at lease coleus is safe and not illegal.
However, please look into the beauty of the coleus leaf, especially if on a shamanic voyage, both for the visual effects and for recall of the journey. In any event, it makes a really attractive plant in your garden and there are many beautiful varieties!
Precautions:
None known but the leaves are bitter.
From the book: "Happy High Herbs by Ray Thorpe"