Both more powerful and more dangerous than heroin, fentanyl is becoming more cmmonplace throughout the U.S. The Drug Enforcement Administration (DEA) has sent out an advisory to the public regarding the opioid crisis, specifically warning of the presence of brightly-colored fentanyl pills in general circulation. The presence of highly addictive “rainbow fentanyl” is a trend which potentially targets young people. I’ve known of fentanyl my entire medical career. My professional experience with it involved use during general anesthesia on patients undergoing surgery and epidurals during labor. It has also been used in combat casualties and cancer patients in the form...