Poison

Poisons (毒, Doku) are various forms of substances that can either intoxicate, disable or in extreme cases, cause death to a person exposed to its effects.

Types

 * Murasame - A katana with poison embedded in its blade. A single cut or a flesh wound will cause a person's heart to cease all functions and will result in an instant death.
 * Liver's defective strength enhancement drug would poison its user as a side effect.
 * Dr. Stylish used poisonous smoke to temporarily restrain Night Raid's movement.
 * Honest wrapped Incursio's hilt with a concealed poisoned barbwire in attempt to slowly and painfully kill its user if they ever got a hold of it.
 * The Oreburg clan was known to create incurable poisons; Taeko's sword was coated in one.

Countering the poison
Various poisons are not fatal and if properly treated, can be expelled from the victim's body. Numerous Teigu can assist recovery, prevent or even stop its effects. Such Teigu include Incursio, which could protect its user and help them recover from harmful toxins. Certain poisonous Teigu have special conditions that they have to meet in order for the poison to take effect. For example, Murasame can be fought off if the combatant avoids direct contact with its blade or protects themselves by encasing their body in armor. Additionally, organic Teigu as a whole cannot be affected by any poison or toxin. Babara Oreburg was known to have resistance to 600 kinds of poisons in her body.