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The alleviation of neuropathic pain cannot be satisfactorily achieved by treatment with opioids. There is much evidence to indicate that the active site of morphine for inducing effective analgesia is in the raphe magnus nucleus, where serotonin (5-HT, 5-hydroxytryptamine) acts as a primary transmitter. Therefore, we developed the hypothesis that 5-HT(More)
3,4-methylenedioxymethamphetamine (MDMA) is a psychoactive stimulant abused by young people as the recreational drug ecstasy. Other compounds, either deliberately added or present as byproducts, are often found in MDMA tablets and can unexpectedly interact with each other. The aim of this study was to evaluate the pharmacodynamic effects of interactions(More)
We have previously reported that serotonin concentration was reduced in the brain of mice with neuropathic pain and that it may be related to reduction of morphine analgesic effects. To further prove this pharmacological action, we applied fluoxetine, a selective serotonin reuptake inhibitor, to determine whether it suppressed neuropathic pain and examined(More)
Propofol (PRO) is a hypnotic used to induce and maintain general anesthesia. A risk of drug–drug interactions exists in cases of clinical co-administration of PRO and midazolam (MDZ) or carbamazepine (CBZ). Therefore a sensitive and rapid assay is needed to monitor these drugs. In this study, a sensitive and selective liquid chromatography-tandem mass(More)
The present study aims to investigate the possibility of interaction of donepezil (DP) and galantamine (GAL) as acetylcholinestrase inhibitors, on memantine (MT) hydrochloride in rat plasma by HPLC-fluorescence detection. The separation of MT was achieved within 12 min without interference of DP and GAL on the chromatogram. MT levels in rat plasma with a(More)
We describe the use of hair roots as a matrix for detection of methamphetamine (MP) and 3,4-methylenedioxymethamphetamine (MDMA) abuse. The concentration of drugs was determined in rat hair roots, hair shafts, and plasma after a single administration of MP or MDMA, by use of an HPLC-peroxyoxalate chemiluminescence (PO-CL) method involving column switching.(More)
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