To the Editor: Meperidine, also known as pethidine, is one of the most commonly prescribed opioid analgesics. Meperidine exerts high central nervous system depressant effects through producing prolonged activation of opioid receptors (μ‐receptor). We described a rare case of generalized tonic–clonic seizures after intravenous (IV) injection of meperidine for bronchoscopy premedication in a pati...

Older adults compose a large portion of patients with persistent pain. Opioid analgesics are widely used to treat acute and persistent pain in cancer and end-of-life care, but their use in other types of persistent pain in older adults is controversial. Clinicians and regulators must work together, balancing the legitimate medical need for opioids while acknowledging increasing opioid misuse an...

Chronic pain syndrome developing in patients with oncological diseases significantly decreases their quality of life which makes effective integrative analgetic therapy a pressing issue. Currently, drugs various pharmaceutical groups are used for management and administered subsequentially accordance the intensity visual analogue scale. For moderate severe syndrome, opioid analgesics have side ...

Opioid analgesics are the mainstay in the treatment of moderate-to-severe pain, yet their use is frequently associated with adverse effects, the most common and debilitating being constipation. Opioid-induced motor stasis results from blockade of gastrointestinal peristalsis and fluid secretion, and reflects the action of the endogenous opioid system in the gut. Methylnaltrexone and alvimopan a...

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The gut is a neurological organ, which implies that many neuroactive drugs such as opioid analgesics can seriously disturb gastrointestinal function, because many of the transmitters and transmitter receptors present in the brain are also found in the enteric nervous system. One of the most common manifestations of opioid-induced bowel dysfunction is constipation which results from blockade of ...

Opioid analgesics are usually effective in the management of severe chronic pain. However, symptoms of opioid-induced bowel dysfunction (OIBD) are common during opioid therapy. Opioid-induced bowel dysfunction is often unsuccessfully managed due to limited effectiveness and numerous adverse effects of traditional laxatives. Newer treatment possibilities directed at the pathomechanism of OIBD co...

Opioid analgesics, as commonly prescribed medications used for relieving pain in patients, are especially prevalent in US these years. However, an increasing amount of opioid misuse and abuse have caused lots of consequences. Researchers and clinicians have attempted to discover the factors leading to opioid long-term use, dependence, and abuse, but only limited incidents are understood from pr...

AIMS Opioids are widely used as effective analgesics, but opioid sensitivity is well known to vary widely among individuals and the underlying genetic factors are not fully understood, thus hampering efficient pain treatment. We explored the genetic factors that contribute to individual differences in opioid sensitivity by performing a genome-wide association study. METHODS We conducted a mul...

μ-Opioid agonists mediate their analgesic effect through GPCRs that are generated via alternate splicing of the Oprm1 transcript. While the majority of μ-opioids interact with receptors comprising the canonical 7 transmembrane (7TM) domain, a recently identified class of μ-opioids appears to require a 6TM domain variant. In this issue of the JCI, Lu and colleagues provide an in vivo proof-of-co...