> The relationship between prescription opioid abuse and increases in heroin use in the United States is under scrutiny. These substances are all part of the same opioid drug category and overlap in important ways. Currently available research demonstrates:
Prescription opioid use is a risk factor for heroin use.
Heroin use is rare in prescription drug users.
Prescription opioids and heroin have similar effects, different risk factors.
A subset of people who abuse prescription opioids may progress to heroin use.