What Is Carfentanil

What Is Carfentanil? Carfentanil or carfentanyl is a structural analog of the synthetic opioid analgesic fentanyl. Short-acting and with fast onset, it has weight for weight, around one hundred times stronger effects than fentanyl and thousands of times stronger than heroin. Wikipedia, What are the effects of carfentanil? The carfentanil high can include drowsiness, nausea or tranquility. …

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