Signs and Symptoms of Ketamine

Street Names: Special K, Vitamin K, Cat killer, Cat valium, Purple, K

Method of Use: Snorted, Smoked, Injected

Inhaling a substance through nose or mouth (sometimes using a substance soaked rag, breathing fumes out of a bag or balloon containing the preferred substance, or inhaling directly from the can)

Symptoms/Effects of Use

  • Lost sense of time, senses, and identity
  • Amplified visual perception and sense of touch
  • Muted sense of smells and tastes
  • Euphoria
  • Confusion
  • May feel 'floaty' (detached from your body/environment, “K hole”)
  • Paralyzed sensation
  • Impaired attention, learning ability, motor function, and memory
  • Increased heart rate
  • Increased blood pressure
  • Numbness
  • Nausea/vomiting
  • Hallucinations
  • Paranoia/delusional thinking
  • Egocentrism (preoccupation with one’s internal world)
  • Delirium and amnesia (in high doses)
  • Fatal respiratory problems
  • Personality changes

What to Look For

  • Panic/paranoia
  • Rage
  • Slurred speech
  • Muscle spasms (may look like seizures)
  • Dry mouth
  • Nervousness
  • Hallucinations

Withdrawals Symptoms (not clearly established)

  • Nightmares
  • Disorientation
  • Sense of unreality

Note: Each person may experience different symptoms/effects. This list is not inclusive. For more information, visit