Articles: narcotic-antagonists.
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Experimental eye research · Nov 2009
Naltrexone and insulin are independently effective but not additive in accelerating corneal epithelial healing in type I diabetic rats.
Patients with diabetes are at increased risk for developing corneal disorders, termed diabetic keratopathy. Treatments for diabetic keratopathy are limited. Preclinical studies have demonstrated that topical administration of either naltrexone (NTX) or insulin (INS) accelerates corneal re-epithelialization in type I diabetic rats. ⋯ Therefore, the DB NTX/INS group exhibited some slight delays in wound repair compared to the DB NTX and DB INS groups. Topical application of NTX and/or INS to the cornea had no effect on non-invasive measures that included ocular morphology, intraocular pressure, or corneal thickness. These data demonstrate that although NTX or INS accelerates wound healing, concomitant application of NTX and INS to corneal abrasions in diabetic animals does not have an additive effect on re-epithelialization.
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Case Reports
Methylnaltrexone: a subcutaneous treatment for opioid-induced constipation in palliative care patients.
Opioid-induced constipation is common in palliative care and causes considerable distress to patients taking opioids. Opioid-induced constipation can be difficult to manage with conventional laxatives, often requiring invasive rectal interventions. A unique bowel intervention linked specifically to opioid-induced constipation in the form of a subcutaneous injection is now available for the management of opioid-induced constipation. This article will examine all aspects of opioid-induced constipation with particular reference to this new management option, methylnaltrexone bromide (Relistor).
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Cochrane Db Syst Rev · Oct 2009
Review Meta AnalysisOpioid antagonists with minimal sedation for opioid withdrawal.
Managed withdrawal is a necessary step prior to drug-free treatment or as the end point of long-term substitution treatment. ⋯ The use of opioid antagonists combined with alpha(2)-adrenergic agonists is a feasible approach to the management of opioid withdrawal. However, it is unclear whether this approach reduces the duration of withdrawal or facilitates transfer to naltrexone treatment to a greater extent than withdrawal managed primarily with an adrenergic agonist.A high level of monitoring and support is desirable for several hours following administration of opioid antagonists because of the possibility of vomiting, diarrhoea and delirium.Further research is required to confirm the relative effectiveness of antagonist-induced regimes, as well as variables influencing the severity of withdrawal, adverse effects, the most effective antagonist-based treatment regime, and approaches that might increase retention in subsequent naltrexone maintenance treatment.
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J Subst Abuse Treat · Oct 2009
Comparative StudyComparative treatment and mortality correlates and adverse event profile of implant naltrexone and sublingual buprenorphine.
There is increasing interest in the use of implantable naltrexone as a new treatment for opiate dependence. This center has been one of the leaders in this form of treatment in Australia and has recently completed a registry-controlled review of our mortality data. As part of the study of the safety profile of this therapy, we were interested to review both the treatment correlates of previously presented mortality data and of adverse events. ⋯ NIT patients had significantly longer days in treatment per episode (mean +/- standard deviation, 238.32 +/- 110.11 vs. 46.96 +/- 109.79), total treatment duration (371.21 +/- 284.64 vs. 162.50 +/- 245.76), and mean treatment times but fewer treatment episodes than BUP (all p < .0001). Serious local tissue reaction or infection each occurred in 1% of 200 NIT episodes. These data show that NIT economizes treatment resources without compromising safety concerns.