How the fentanyl crisis' fourth wave has hit every corner of the US

fentanyl About fentanyl Fentanyl is a strong opioid painkiller It's used to treat severe pain, for example during or after an operation or a serious injury, or pain

Producing illicit fentanyl is not an exact science Two milligrams of fentanyl can be lethal depending on a person's body size, tolerance and past usage DEA fentanyl Fentanyl relieves pain by blocking the nerves in the brain that recognise pain messages from the body Your doctor may have prescribed fentanyl for another