Sinicuichi (Heimia salicifolia) is a shrub from Mexico which is used by some Mexican shamans as a tool for divination.
Sinicuichi doesn’t seem to have any consistently reported effects. Some users experience physical discomfort while others compare the effects to those of cannabis.
This extract is 10 times stronger than the leaves, so less than 1 gram is enough to make tea from.
Some users have reported unpleasant side-effects after consumption (and also the day after): heavy muscle pain, aching joints, exhaustion, headache.