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Low-Dose Naltrexone for Excoriation Disorder
Kevin Varghese, Xiaofeng Yan, Fei Cao
Cureus, 2024 Mar 1;16(3):e55336. https://pubmed.ncbi.nlm.nih.gov/38559544/
Abstract
Excoriation (skin-picking) disorder (ED) is a condition characterized by the repeated compulsion to pick at the skin, causing physical trauma and psychiatric distress. Patients often desire to cease skin-picking behavior but are unable to do so. Multiple treatment modalities are effective for ED, including naltrexone. Previous reports of naltrexone for ED were at a high dose of 50 mg. The efficacy of low-dose naltrexone (LDN) at 4.5 mg in managing ED has not been reported. We present a case of a 51-year-old female with ED who was evaluated in the pain clinic for fibromyalgia management. Her medications included gabapentin 600 mg PO TID and a history of opioid prescription for diffuse pain. She was started on naltrexone 4.5 mg PO QD for the management of fibromyalgia. Three months later, the patient reported improvement in her skin-picking disorder, with a lessened compulsion to itch at her skin and improved healing of existing lesions. When the naltrexone was temporarily interrupted for an elective procedure, her lesions worsened. Her lesions improved after she resumed the medication. Thereby, this patient experienced a therapeutic benefit from naltrexone for her skin-picking disorder, as demonstrated by the temporal changes in her symptoms. To our knowledge, this is the first reported case of ED improving with LDN, as other cases utilized 50 mg. Though few clinical trials or systematic reviews recommend the use of naltrexone for EDs, our case supports trialing LDN in the appropriate context.
Keywords: dermatology; excoriation disorder; naltrexone; pain management; skin-picking.