Opioids come from natural and synthetic sources and can be highly addictive. Opioids are medically used for the treatment of pain relief. However, opioids are often misused and abused due to the euphoria inducing effects.

Effects of Opioids: Small pupils, reduced breathing, non-responsiveness, drowsiness, changes in appetite, flu like symptoms, mood swings, avoiding family and friends, nervousness, and fidgeting.