Each illicit fentanyl and carfentanil are extremely risky opioids which could result in A fast overdose and Demise when abused, but carfentanil is a lot more potent than fentanyl. Various doses on the anti-overdose drug naloxone (Narcan) may not be effective to reverse an overdose. Go on looking throughI do not don't forget if I look at this but wh