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How Long Does Fentanyl Stay In Your System?

Administration of fentanyl intravenously will result in quicker clearance from your plasma compared to transdermal or transmucosal formats. These symptoms generally emerge as a result of your neurophysiology readapting itself to function without the mu-receptor agonism (as was provided by fentanyl). It wasn’t until the 1990s that fentanyl was approved by the United States FDA…

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