Strychnine is a white, crystalline, bitter powder that is odorless and can be swallowed, inhaled, or administered intravenously (injected right into a vein) when combined with a solution.

Since strychnine is a potent poison, humans only need to be exposed to little amounts for serious side effects. Poisoning with strychnine can have fatal consequences as well as very serious health effects.

The degree of strychnine poisoning is contingent upon the quantity and mode of strychnine exposure as well as the individual's health at the time of exposure.

Strychnine interferes with the chemical's ability to regulate nerve impulses sent to the muscles. The substance that regulates nerve signals functions as the muscles' "off switch" in the body. Muscle spasms that are extremely painful occur throughout the body when this "off switch" is malfunctioning. Eventually, the person's muscles give out and they become unable to breathe, even though at first their consciousness or thinking is unaffected (they are just extremely agitated and in agony).

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