The drug that killed Prince is showing up in counterfeit form across the US with devastating effects.
Pills found at his home were marked hydrocodone but actually contained fentanyl. Fentanyl powder is cheap and easy to obtain, experts warn, making it attractive to those manufacturing it into pill form mixed with other drugs.
To someone who travels a lot - like Prince - and needs a prescription filled, an online pharmacy could seem like a real lifesaver. It could, however, be the opposite.
"If the cartels could, they would shake the hand of the medical industry and thank them for creating this new business."
Why are so many patients taking opiate-based painkillers regularly? "There was a push by the pharmaceutical industry and their paid physician advocates that pushed opiates saying they aren't as addictive as we thought," says Minneapolis Dr. Chris Johnson. "So they can be used for back pain and other daily pain. They influenced government bodies to emphasize pain management.”
"You can't experience ordinary pleasure. Every day is a gray day. You have no energy. You have no motivation," Willinbring says. "You have a low grade case of the flu all the time. Your bones and joints ache. And your brain is constantly screaming 'I want more opioids.' It doesn't get better over time."