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    related to: fentanyl side effects

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    • Fentanyl vs Dilaudid: Which Is Better?

      Fentanyl vs Dilaudid: Which Is Better?

      Verywell Health via Yahoo News· 21 hours ago

      It Works Fentanyl primarily acts by activating (turning on) the mu-opioid receptor in the brain. Activation of this receptor helps with pain relief and...