Voraxna
Voraxna was a type of lethal poison effective against Cardassians.

In 2373, Dukat had voraxna added to a bottle of kanar, which was then delivered to Tekeny Ghemor.

Benjamin Sisko later confronted Dukat and Weyoun with the poisoned kanar, which according to Sisko was enough to kill a dozen Cardassians. Weyoun drank the poisoned kanar, saying it was "quite toxic". Fortunately for him, however, Vorta were immune to most forms of poison. ()

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Drugs
Poisonous substances