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[Basic research for psychological dependence on morphine under chronic pain]
Nihon Rinsho. Japanese Journal of Clinical Medicine
|September 14, 2001
Summary
Morphine effectively relieves severe pain, and fears of dependence are often misplaced. This study found that chronic pain in rodents did not increase morphine
Area of Science:
- Pharmacology
- Pain Management
- Neuroscience
Context:
- Morphine is a potent analgesic for severe pain, including cancer pain.
- Clinician hesitancy to prescribe morphine stems from concerns about dependence and abuse potential.
- Recent evidence suggests psychological dependence is minimal when opioids manage pain.
Purpose:
- To investigate the rewarding effects of morphine in rodent models of chronic inflammatory and neuropathic pain.
- To determine if biological changes occur under chronic pain that could alter morphine's effects.
Summary:
- This study examined morphine's rewarding effects in rodents experiencing chronic inflammatory and neuropathic pain.
- Researchers assessed for biological alterations that might impact morphine's efficacy or safety profile in chronic pain states.
Impact:
- Provides evidence to alleviate concerns regarding morphine's dependence potential in chronic pain management.
- Informs clinical practice by highlighting the safety and efficacy of morphine for severe pain.
- Contributes to a better understanding of opioid neurobiology in the context of chronic pain.