Strychnos nux-vomica (strychnine-containing)

Tier 4 — risky / avoid · Convulsions · Lethal · Traditional misuse

Contains strychnine — a potent convulsant poison that blocks glycine receptors in the spinal cord, causing uncontrollable muscle spasms and respiratory failure. Lethal dose is 30–120 mg strychnine. Still found in some traditional medicine preparations and homeopathic products (at dilutions claiming to be safe). Even "low-dose" preparations carry risk because strychnine content is variable and unpredictable.

Dose: NO safe dose for self-medication; contains strychnine which is lethal at 30–120 mg; avoid all preparations