Salvia is an illegal herb in the mint family. Its main active ingredient, salvinorin A, attaches to kappa opioid receptors in the brain and causes intense but short-lived hallucinations lasting less than 30 minutes. Common methods of using salvia include chewing the leaves, smoking dried leaves, or vaporizing extracts. While curiosity and its reported spiritual effects motivate some use, salvia's hallucinogenic experience is also extremely frightening and can cause nausea, dizziness, and mood swings. The document provides street names for salvia and references on its effects and risks.