Pain killers can destroy your brain

Opioids are narcotic, painkilling drugs produced from opium or made synthetically. This class of drugs includes, among others, heroin, morphine, codeine, methadone, fentanyl and oxycodone.

Sometimes called the "opioid epidemic," addiction to opioid prescription pain medicines has reached an alarming rate across the United States. Some people who've been using opioids over a long period of time may need physician-prescribed temporary or long-term drug substitution during treatment.

Signs and symptoms of narcotic use and dependence can include:

• A sense of feeling "high"
• Reduced sense of pain
• Agitation, drowsiness or sedation
• Slurred speech
• Problems with attention and memory
• Pupils that are smaller than usual
• Lack of awareness or inattention to surrounding people and things
• Problems with coordination
• Depression
• Confusion
• Constipation
• Runny nose or nose sores (if snorting drugs)
• Needle marks (if injecting drugs.