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Fentanyl, also spelled fentanyl, is an opioid used as a pain medication and together with other medications for anesthesia. Buy Fentanyl Powder online [3] Fentanyl is also used as a recreational drug, often mixed with heroin or cocaine.[5] It has a rapid onset and effects generally last less than two hours.[3] Medically, fentanyl is used by injection, as a patch on the skin, as a nasal spray, or in the mouth.[3]

Common side effects include vomiting, constipation, sedation, confusion, hallucinations, and injuries related to poor coordination.[3][6] Serious side effects may include decreased breathing (respiratory depression), serotonin syndrome, low blood pressure, addiction, or coma.[3][6] Fentanyl works primarily by activating μ-opioid receptors.[3] It is around 100 times stronger than morphine, and some analogues such as carfentanil are around 10,000 times stronger

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