Interesting, this is the first time I've heard long term effects of salvia use reported. Is this stemming from a single use of the drug or has it been used habitually?
For others reading this: Salvinorin A is a highly selective agonist at a particular opioid receptor with hallucinogenic properties. It is found in the plant called "salvia" referred to by the original poster. It is generally thought to produce shorter lasting psychedelic effects than other hallucinogens.
Does anyone know of a reference on the behavioral effects of Salvinorin A? A quick literature search turns up many papers on the pharmacology but none on behavioral effects...
Also stalemate, this is a science forum, discussions of the recreational use of such drugs are usually considered off-topic.