Felodesine chip
The felodesine chip was a small poison tablet used by members of the Romulan military to commit suicide. It was usually formed into a small, one-inch orange disk. There was no antidote known to the Federation.

Alidar Jarok committed suicide by ingesting a felodesine chip in 2366. ()

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es:Cápsula de Felodesina
Drugs
Poisonous substances