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Opiate overdose symptoms and signs can be referred to as the "opioid toxidrome triad": decreased level of consciousness, pinpoint pupils and respiratory depression. Other symptoms include seizures and muscle spasms. Sometimes an opiate overdose can lead to such a decreased level of consciousness such that the person will not wake up.
Addiction is a brain disorder characterized by compulsive drug use despite adverse consequences. [36] [56] [57] [58] Addiction involves the overstimulation of the brain's mesocorticolimbic reward circuit (reward system), essential for motivating behaviors linked to survival and reproductive fitness, like seeking food and sex. [59]
“The brain changes, and it doesn’t recover when you just stop the drug because the brain has been actually changed,” Kreek explained. “The brain may get OK with time in some persons. But it’s hard to find a person who has completely normal brain function after a long cycle of opiate addiction, not without specific medication treatment.”
The terms 'opioid' and 'opiate' are sometimes used interchangeably, but the term 'opioid' is used to designate all substances, both natural and synthetic, that bind to opioid receptors in the brain. [4] Opiates are alkaloid compounds naturally found in the opium poppy plant Papaver somniferum. [5] [6]
Later blackout-specific studies have indicated that alcohol specifically impairs the brain's ability to take short-term memories and experiences and transfer them to long-term memory. [ 5 ] It is a common misconception that blackouts generally occur only in alcoholics; research suggests that individuals who engage in binge drinking , such as ...
Early studies had indicated that opiates appeared to accumulate in the brain. [5] The receptors were first identified as specific molecules through the use of binding studies, in which opiates that had been labeled with radioisotopes were found to bind to brain membrane homogenates.
Opioid-induced hyperalgesia (OIH) or opioid-induced abnormal pain sensitivity, also called paradoxical hyperalgesia, is an uncommon condition of generalized pain caused by the long-term use of high dosages of opioids [1] such as morphine, [2] oxycodone, [3] and methadone.
South Carolina ranked among the top five states nationwide that are the most dangerous to drive in at night. SC among most dangerous states in the US to drive at night, study shows. Here’s why