| 1. | Opioid antagonists, such as naloxone, can reverse the effects of elevated dynorphin.
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| 2. | Cyprodime is a selective opioid antagonist which blocks the ?-opioid receptors.
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| 3. | Opioid antagonist such as naloxone can also be administered concurrent with oxygen supplementation.
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| 4. | Naloxegol, a peripherally-selective opioid antagonist is now available to treat opioid induced constipation.
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| 5. | Opioid antagonists work by affecting dopamine circuitry, thereby decreasing the pleasurable effects of picking.
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| 6. | However an opioid antagonist may also precipitate an opioid withdrawal syndrome in chronic users.
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| 7. | Naltrexone is a long-acting opioid antagonist with few side effects.
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| 8. | Nalmefene is an opiate derivative similar in both structure and activity to the opioid antagonist naltrexone.
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| 9. | Naloxone is an opioid antagonist and reverses the central nervous depressive effects seen in opioid overdose.
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| 10. | This finding contradicts the belief by some pharmacological scientists that there are no naturally occurring opioid antagonists.
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