Table 3 The 22 opioid-related terms used to collect the Google Trends data, January 1, 2005 to Dec 31, 2015.
Fentanyl | Narcotic | Opioid analgesics | Opioid side effects |
|---|---|---|---|
Heroin | Non opioid | Opioid antagonist | Opioid withdrawal |
Hydrocodone | Opiates | Opioid conversion | Oxycodone |
Methadone | Opioid | Opioid definition | Suboxone |
Morphine | Opioid abuse | Opioid medications | Symptoms |
Tramadol | What is opioid | Â | Â |