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Page 1 od 45 rezultati
Changing over-the-counter ephedrine and pseudoephedrine products to prescription only: impacts on methamphetamine clandestine laboratory seizures.
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BACKGROUND
Clandestine laboratory operators commonly extract ephedrine and pseudoephedrine-precursor chemicals used to synthesize methamphetamine-from over-the-counter cold/allergy/sinus products. To prevent this activity, two states, Oregon in 07/2006 and Mississippi in 07/2010, implemented
The use of cyclohexanone as a "derivatizing" reagent for the GC-MS detection of amphetamines and ephedrines in seizures and the urine.
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A GC-MS method has been developed for the detection of amphetamine, methamphetamine, and the ephedrines, in seizures and the urine, based on on-GC condensation (derivatization) with cyclohexanone. The method is simple: the dried seizure material or the urine extract was mixed with cyclohexanone and
Effect of ephedrine and hydrocortisone on theophylline-induced seizures in rats.
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EPHEDRINE SULPHATE AND BARIUM CHLORIDE IN THE PREVENTION OF STOKES-ADAMS SEIZURES.
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Toxicological effects of a mixture used in weight loss products: p-synephrine associated with ephedrine, salicin, and caffeine.
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p-Synephrine is an adrenergic amine found in Citrus aurantium L. fruits and has been used for weight loss in dietary supplements. There are commercial products containing this substance associated to caffeine, salicin, and ephedrine. The aim of this study was to evaluate the acute toxicity of this
Rapid nondestructive on-site screening of methylamphetamine seizures by attenuated total reflection fourier transform infrared spectroscopy.
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The identification and quantification of illicit substances in the field is often desirable. Fourier transform infrared spectroscopy (FT-IR) has both qualitative and quantitative capabilities and field portable instruments are commercially available. Transmission infrared spectra of mixtures
[Ephedrine and ephedra in weight loss products and other preparations].
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Ephedrine is a sympathicomimetic agent that stimulates the central nervous and cardiovascular systems and causes bronchodilatation. It is one of the alkaloids in the herb Ephedra which is the basis of several over-the-counter herbal products, among which a number of popular weight-loss products. The
Adverse events associated with ephedrine-containing products--Texas, December 1993-September 1995.
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During December 1993-September 1995, the Bureau of Food and Drug Safety, Texas Department of Health (TDH), received approximately 500 reports of adverse events in persons who consumed dietary supplement products containing ephedrine and associated alkaloids (pseudoephedrine, norephedrine, and
DryLab® optimised two-dimensional high performance liquid chromatography for differentiation of ephedrine and pseudoephedrine based methamphetamine samples.
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In-silico optimised two-dimensional high performance liquid chromatographic (2D-HPLC) separations of a model methamphetamine seizure sample are described, where an excellent match between simulated and real separations was observed. Targeted separation of model compounds was completed with
Australian Federal Police seizures of illicit crystalline methamphetamine ('ice') 1998-2002: impurity analysis.
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Nineteen crystalline methamphetamine ('ice') seizures captured by the Australian Federal Police (AFP) at the Australian border between 1998 and 2002 were analysed. Using a modified gas chromatograph-mass spectrometry (GC-MS) impurity profiling approach of these samples we have identified >30
[Convulsions and cardiac arrest after epidural anesthesia. Prevention and treatment].
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Seizures followed by cardiac arrest after obstetrical epidural anaesthesia are induced by either low cerebral perfusion due to cardiovascular collapse after too excessive sympathetic blockade or after accidental total spinal anaesthesia, or by toxic accident due to accidental intravascular
The effects on Apgar scores and neonatal outcomes of switching from a combination of phenylephrine and ephedrine to phenylephrine alone as a prophylactic vasopressor during spinal anesthesia for cesarean section.
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BACKGROUND
Ephedrine, unlike phenylephrine, has a dose-related propensity to depress fetal pH during spinal anesthesia during cesarean section. A low arterial umbilical cord pH has a strong association with neonatal mortality and morbidity. The purpose of this retrospective study was to investigate
Ephedrine-induced complete atrioventricular block with ventricular asystole during rapid concomitant phenytoin infusion: a case report.
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Ephedrine is widely used to elevate blood pressure, however, one should be cautious to use it concomitantly with phenytoin infusion in neurosurgical procedures. A 59-year-old female was admitted for craniotomy with removal of metastatic brain tumor. During operation phenytoin infusion was given to
Complicated hypertension related to the abuse of ephedrine and caffeine alkaloids.
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Ephedra containing products (ECPs), which most often contain additional sources of caffeine alkaloids, may be an under-recognized cause of hypertension. ECPs, especially when used in combination or at higher than recommended doses, can cause life-threatening cardiovascular and neurological
Case studies on illegal production of ephedrine/pseudoephedrine within Fujian China
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Ephedrine/pseudoephedrine (EPH) is the most common precursor for the manufacture of methamphetamine and is controlled within China via criminal law and government regulations. Therefore, it is of great significance to systematically study the cases of illicit production of EPH in order to aid timely
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