DENVER (KDVR) — The investigation continues into the into the five suspected overdose deaths in Commerce City.

There are several names floating around on what people are calling illicitly manufactured fentanyl.

Here are some of the street names of fentanyl, according to the Centers for Disease Control and Prevention:

ApacheDance FeverFriendGoodfellasJackpotMurder 8Tango & Cash 

These are some of the street names of fentanyl, according to the Drug Enforcement Agency:

ApacheChina GirlChina TownChina WhiteDance FeverGoodfellasGreat BearHe-ManPoisonTango & Cash

The National Institutes of Health said these are the street names of fentanyl:

ApacheChina GirlChina WhiteDance FeverFriendGoodfellaJackpotMurder 8Tango and CashTNT

In prescription form, fentanyl is known by the following names, according to the National Institute on Drug Abuse:

ActiqDuragesicSublimaze

The CDC says rates of overdose deaths involving synthetic opioids other than methadone, which includes fentanyl and fentanyl analogs, continue to rise.