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Acetylfentanyl is a powerful synthetic opioid analgesic that belongs to the fentanyl class. It is a close structural analog of fentanyl, and shares many of its properties. Acetylfentanyl is primarily used for its therapeutic benefits and has been subject to extensive research and development.


Acetylfentanyl has a structure similar to fentanyl, with a few key differences. It has a methyl group attached to the phenyl ring at the acetyl group position, which differentiates it from fentanyl. This structural modification enhances the acetylfentanyl’s potency and makes it less stable.


Acetylfentanyl binds to opioid receptors in the brain, primarily the mu-opioid receptors. Its binding to these receptors results in analgesia, euphoria, sedation, respiratory depression, and constipation. It also has high affinity for the delta-opioid receptors, although to a lesser extent.


The pharmacokinetics of acetylfentanyl are similar to fentanyl. It undergoes rapid absorption after oral administration, with peak concentrations occurring within 30-60 minutes. The half-life of that is approximately 2-3 hours, and most of it is excreting unchanged in the urine.


It is primarily using as a potent analgesic in clinical settings. They are commonly uses to manage severe pain conditions such as cancer pain, post-operative pain, and neuropathic pain. It is also administered to patients requiring sedation for medical procedures or during anesthesia.

Side Effects

Acetylfentanyl, like fentanyl, is associating with a range of side effects. Common side effects include:

– Respiratory depression

– Hypotension

– Nausea and vomiting

– Constipation

– Dizziness

– Confusion

– Bradycardia

– Hypothermia

Monitoring and Contraindications

Proper monitoring of patients receiving acetylfentanyl is essential. This includes regular blood pressure checks, respiratory rate monitoring, and body temperature regulation. It is contraindicated in patients with respiratory depression, severe hepatic impairment, and known hypersensitivity to any fentanyl derivative.


Acetylfentanyl is a powerful synthetic opioid analgesic that shares many similarities with fentanyl. It is primarily using for severe pain management due to its high potency and relatively short duration of action. However, the risks associated with it use, including respiratory depression and potential overdose, make it crucial to use this medication cautiously and in accordance with clinical guidelines.

Additional information


5 grams, 10 grams, 25 grams, 50 grams, 100 grams, 250 grams, 500 grams


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