Doctors prescribe opioids to give relief to those in acute pain. Regular use of the prescription drug can lead to addiction and dependence. Examples of prescribed opioids include:

Codeine: Used for mild to moderately severe pain.

Fentynal: Used for severe ongoing pain. Fentynal is highly addictive and it is a synthetic alternative to morphine.

Hydrocodone: Used for treating moderate to severe pain.

Methadone: Used for treating severe, ongoing pain. Drug treatment centers also use this drug to wean off opioids for drug addicts.

Morphine: Used for treating severe ongoing pain.

Oxycodone: Used to treat relieve moderate to severe pain.

 

Source: http://www.indystar.com/story/news/2017/09/29/opioids-list-common-prescription-pain-relievers-and-illegal-drugs/690124001/