Articles: narcotic-antagonists.
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Case Reports
Naldemedine-induced Opioid Withdrawal Syndrome in a Patient with Breast Cancer without Brain Metastasis.
Opioid-induced-constipation (OIC) can be treated by naldemedine and other peripherally acting mu-opioid receptor antagonists (PAMORA) via a novel mechanism. We describe the case of a 52-year-old female outpatient who developed OIC while receiving oxycodone for pain due to cancer with multiple bone metastases. ⋯ However, she recovered from OWS on intravenous fentanyl and a continuous infusion of oxycodone. She did not develop OWS thereafter and was discharged two days after recovery.
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Buprenorphine is a partial-agonist opioid that is prescribed as a medication-assisted treatment (MAT) for opioid use disorder (OUD). Buprenorphine is also a potent analgesic with high opioid-receptor affinity and binding coefficient; when buprenorphine is administered simultaneously with a μ-opioid receptor full agonist ("full agonist opioid" [FAO]), the combination can yield unexpected outcomes depending on dosing and timing. ⋯ Recognizing the risk management challenge from both analgesia and BUP-MAT perspectives, we convened a multidisciplinary group of clinicians who treat BUP-MAT patients and completed a literature review with the goal of generating a guideline for appropriate management of these patients presenting for a broad spectrum of surgical procedures. Our conclusion is that continuous simultaneous administration of buprenorphine products with FAO is safe when accounting for dose and timing, including surgeries that historically produce moderate to severe pain, and may further provide an analgesic advantage, lessen FAO burden, and reduce relapse risk to this group.
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Illicitly manufactured fentanyl (IMF) is responsible for a growing number of deaths. Some case series have suggested that IMF overdoses require significantly higher naloxone doses than heroin overdoses. Our objective was to determine if the naloxone dose required to treat an opioid overdose is associated with the finding of fentanyl, opiates, or both on urine drug screen (UDS). ⋯ Our findings refute the notion that high potency synthetic opioids like illicitly manufactured fentanyl require increased doses of naloxone to successfully treat an overdose. There were no significant differences in the dose of naloxone required to treat opioid overdose patients with UDS evidence of exposure to fentanyl, opiates, or both. Further evaluation of naloxone stocking and dosing protocols is needed.
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Opioid use disorder (OUD) is a major and growing public health concern, and Medicare patients have nearly double the proportion of OUD prevalence compared with those with commercial insurance. This study examines provider-level characteristics to delineate the wide variation behind buprenorphine provision, which is the mainstay of medication-assisted treatment for OUD. ⋯ Primary care specialties, such as family medicine and internal medicine, currently comprise a significant majority of the US buprenorphine prescriber population for Medicare beneficiaries. Future policies should target specific demographics to enable greater patient access from physicians who are characteristically less likely to prescribe buprenorphine to increase overall capacity.