Pharmacokinetics of morphine in cerebrospinal fluid and plasma after epidural administration in man. 1988

R H Drost, and T I Ionescu, and R H Taverne, and G van Lingen, and J M van Rossum, and R A Maes
Centre for Human Toxicology, University of Utrecht, The Netherlands.

The morphine concentration in serum as well as in cerebrospinal fluid (CSF) after epidural administration of 0.1 mg/kg morphine to 10 patients undergoing aortic abdominal surgery, was determined. Model independent pharmacokinetic parameters in serum and CSF i.e. mean residence time (MRT), clearance (Cl) and apparent volume of distribution were calculated from the concentration time curves using a non-linear square regression fitting programme. Peak concentration of morphine in serum (86 ng/ml) and in CSF (2610 ng/ml) was reached after 10 min respectively 40 min of epidural injection.

UI MeSH Term Description Entries
D007268 Injections, Epidural The injection of drugs, most often analgesics, into the spinal canal without puncturing the dura mater. Epidural Injections,Extradural Injections,Peridural Injections,Injections, Extradural,Injections, Peridural,Epidural Injection,Extradural Injection,Injection, Epidural,Injection, Extradural,Injection, Peridural,Peridural Injection
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009020 Morphine The principal alkaloid in opium and the prototype opiate analgesic and narcotic. Morphine has widespread effects in the central nervous system and on smooth muscle. Morphine Sulfate,Duramorph,MS Contin,Morphia,Morphine Chloride,Morphine Sulfate (2:1), Anhydrous,Morphine Sulfate (2:1), Pentahydrate,Oramorph SR,SDZ 202-250,SDZ202-250,Chloride, Morphine,Contin, MS,SDZ 202 250,SDZ 202250,SDZ202 250,SDZ202250,Sulfate, Morphine
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D015360 Analgesia, Epidural The relief of pain without loss of consciousness through the introduction of an analgesic agent into the epidural space of the vertebral canal. It is differentiated from ANESTHESIA, EPIDURAL which refers to the state of insensitivity to sensation. Epidural Analgesia

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