side effects of fentanyl

What are the Side Effects of Fentanyl?

Fentanyl causes many side effects, like other opioid drugs. But fentanyl is 50 to 100 times more potent than heroin, oxycodone, morphine, and hydrocodone. This means side effects of fentanyl are more significant, occur more rapidly and last for a more extended period. Side Effects of Fentanyl Side effects of fentanyl include: Fatigue, drowsiness, and…