18 Many analgesic drugs, including mu-opioids, cannabinoids, and the novel non-opioid 19 analgesic improgan, produce antinociception by actions in the rostral ventromedial medulla 20 (RVM). There they activate pain-inhibiting neurons, termed " OFF-cells " , defined by a 21 nociceptive reflex-related pause in activity. Based on recent functional evidence that 22 neuronal P450 epoxygenases are im...

Abstract: Tramadol is most commonly used opioid analgesic. It has a very rare and serious endocrine metabolic side effect as hypoglycaemia. The reason behind hypoglycaemia still unclear but it may lead due to increased insulin concentration utilization of glucose by muscles. In this report, patient prescribed tramadol for toothache. This report focuses on administration. Clinical Pharmacists sh...

Recent studies of knockout mice conclusively show that the mu opioid receptor mediates the analgesic effects of morphine; they further suggest that the mu opioid receptor also has a role in mediating the effects of other opioid agonists, and provide insights into the non-analgesic effects of mu opioids.

BACKGROUND Opioids have become the mainstay for treatment of moderate to severe pain and are commonly used to treat surgical pain. While opioid administration has been shown to cause opioid-induced hyperalgesia and tolerance, interactions between opioid administration and surgery with respect to these problematic adaptations have scarcely been addressed. Accumulating evidence suggests opioids a...

Postoperative symptoms and complications can be prevented by a suitable choice of anaesthetic and analgesic technique for specific procedures. The aim of analgesic protocols is not only to reduce pain intensity but also to decrease the incidence of side-effects from analgesic agents and to improve patient comfort. Moreover, adequate pain control is a prerequisite for the use of rehabilitation p...

Papaver libanoticum is an endemic plant to Lebanese region (family Papaveraceae) that has not been investigated before. The present study aimed to explore the analgesic activity of dried ethanolic extract of Papaver libanoticum (PLE) using tail flick, hot plate, and acetic acid induced writhing models in mice. The involvement of opioid receptors in the analgesic mechanism was investigated using...

OBJECTIVES This study investigates utilisation patterns for prescription opioid analgesics in the Australian community and how these are associated with a framework of individual-level factors related to healthcare use. METHODS Self-reported demographic and health information from participants in the 45 and Up Study cohort were linked to pharmaceutical claims from 2006-2009. Participants comp...

PURPOSE Since 1990, numerous jurisdictions in the United States (US) have reported increases in drug poisoning mortality. During the same time period, the use of opioid analgesics has increased markedly as part of more aggressive pain management. This study documented a dramatic increase in poisoning mortality rates and compared it to sales of opioid analgesics nationwide. METHODS Trend analy...

Opioids, the wonderful analgesics, remain the mainstay in the clinical management of moderate to severe pain. However, development of analgesic tolerance and increase in pain sensitivity are some of the major concerns following opioid treatment. Studies suggest that NMDA receptor-mediated intracellular events play a role in mediating these effects. Moreover, NMDA receptor antagonists effectivel...