Signs & Symptoms

Physical Signs

How do prescription opioids, heroin, and fentanyl affect a person's body? Find out here.

Symptoms of Withdrawal

See lists of heroin, fentanyl and prescription opioid withdrawal symptoms. Read more.

What Should You Do in an Overdose Situation?

Learn to recognize the signs of an opioid overdose, and what you can do to help save a life.