How long does thc stay in your salvia?

Since there is no known standardized test (e.g. Urine, hair, saliva) that looks for Salvinorin A usage, there is no way to really tell. Salvinorin A is such a relatively new substance that the scientific community knows very little about its long term effects.

So far, short term effects seem to be non-threatening to the well-being and health of the human body, save for the danger associated with smoke inhalation (the primary method of Salvinorin ingestion).

However, we may or may not find negative long term effects as more and more medical/scientific information is brought to light.