Short-term effects

Heroin has immediate damaging effects on the body. This can vary from dry mouth to vomiting.

Physical effects

  • Warm flushing of the skin and dry mouth
  • Suppresses the sensation of pain.
  • Drowsiness, lethargy and relaxation.
  • Causes constricted pupils and blurred vision.
  • Suppresses cough reflex and slows breathing.
  • Elicit nausea, vomiting and sweating.
  • Reduces libido.
  • Withdrawal produces tremors, sweating and chills, sneezing, yawning, muscle spasms, restlessness, muscle and bone pain, insomnia, diarrhea and vomiting, cold flashes with goose bumps (“cold turkey”), kicking movements (“kicking the habit”)

Psychological effects

  • Euphoria.
  • Suppresses the emotional response to pain.
  • Causes concentration difficulty, mild anxiety or fear.
  • Withdrawal produces depression, mood swings and hypersensitivity to pain.