Rationale: Physical signs and symptoms of opioid addiction can be physical, psychological, and behavioral. Physical signs and symptoms include runny nose, bloodshot eyes, sleep disturbance, slurred speech, impaired coordination, and change in appetite. Psychological signs and symptoms include irritability, paranoia, unusual breathing, anxiety/irritability, mood swings, outbursts of anger, and unusual fear. Behavioral signs and symptoms include lack of personal hygiene, neglect of responsibilities, secretive spending, and foregoing social connections. Hypotension, diaphoresis, and shallow respirations are not characteristic of opioid abuse.