Heroin addiction side effects are devastating, not just physically, but also emotionally. But today, it’s not just the side effects that people hooked on heroin have to think about; it’s death. Fentanyl is a frequent mix with heroin that increases the high. It also makes an overdose more likely. A recent article on California Healthline.org news summarized the dangers of fentanyl: “Fentanyl is ...