which is stronger fentanyl or morphine
Fentanyl, the drug that killed Prince, is stronger than heroin and morphine. Lucy Cormack. The effect of the prescription drug on which music star Prince overdosed is up to 100 times stronger than morphine and 50 times stronger than heroin. Fentanyl, an opioid, is prescribed for the treatment of chronic pain, often following major trauma, nerve damage or cancer. Up Next.