Both equally illicit fentanyl and carfentanil are extremely risky opioids that will bring on a quick overdose and Demise when abused, but carfentanil is much more powerful than fentanyl. Many doses in the anti-overdose drug naloxone (Narcan) may not be effective to reverse an overdose. Carry on examiningFentanyl OD or W/D!!! Undecided, will need as