Listen carefully, I'm going to tell you a secret that big pharm doesn't want the masses to know. Through pharmaceutical company reps, Doctors were given lots of money(sales bonus) to prescribe this crap in place of less harmful opioids, which were less effective to relieve pain and more costly. About 10 years ago the FDA grew some balls and started investigating this scheme. They found out that it was widespread throughout the USA. Many doctors and drug reps. ending up in jail and/or losing their jobs, or medical licenses. Of course, now it's really hard to get fentanyl prescribed by medical doctors. This is why it is a mostly black-market drug. It's easy and cheap to make and is a stronger opioid than poppy, coke, morphine, or heroin. People in pain love this crap, but dumb fucks that sell it don't know what the right strength/amount is for a customer to take. Less than one gram can kill, BTW.