Shelley R Salpeter, Jacob S Buckley, Eduardo Bruera
BACKGROUND: Opioid dose escalation may cause hyperalgesia, mediated by the N-methyl-D-aspartate (NMDA) pathway. Methadone is an atypical opioid that inhibits hyperalgesia through NMDA-blockade, especially at low doses. OBJECTIVE: To evaluate the efficacy of using very-low-dose methadone as the sole long-acting opioid agent in a hospice practice. DESIGN: A retrospective, observational study of the use of methadone, ≤15 mg daily, with as-needed short-acting opiates...
June 2013: Journal of Palliative Medicine