syringe
par·a·lyt·ic
ˌperəˈlidik/
adjective
  1. 1.
    of or relating to paralysis.
    “the terror left the victim in a paralytic state”
    synonyms: paralyzed, crippled, disabled, incapacitated, powerless, immobilized,useless

    “her hands became paralytic”
noun
  1. 1.
    an agent that induces paralysis.
    “the serum, though a paralytic, still allowed the victim to remain breathing”