Sudden Death 4:
Types of Sudden Death III
The most feared drug cocktail is the speedball--the combination of heroin and cocaine. I searched far and wide for scientific study of the ill-effects of the speedball. Our cultural fear of this cocktail seems to be nothing more than folklore--based on the fact that telling your body to go in two opposite energetic directions at the same time seems like it ought to be dangerous
Speedballs are dangerous, but the harm caused by them seems to be due primarily to the cocaine. Cocaine increases blood pressure and can causes heart-attacks Care should always be taken when ingesting cocaine.
Fentanyl is a synthetic opioid that is ten times as potent as heroin. Sometimes it is sold on the street as heroin, especially under the name "China White". When you ingest Fentanyl that you think is heroin, you are doing ten times as much as you think you are and this can lead to a true overdose, but not of heroin, of Fentanyl.