Cocktail IV is a synthetic opioid that is similar to morphine, but is about 10 times more potent. It was developed in the early 1990s as a successor to the highly addictive and potentially deadly drug, heroin.

Cocktail IV is a Schedule II drug, which means that it has a high potential for abuse and can be addictive. It is a central nervous system depressant that can cause drowsiness, respiratory depression, and nausea. It can also cause constipation and, in …