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Stereoselective disposition of ibuprofen enantiomers in human cerebrospinal fluid. 1995

B Bannwarth, and F Lapicque, and F Pehourcq, and P Gillet, and T Schaeverbeke, and C Laborde, and J Dehais, and A Gaucher, and P Netter
Department of Clinical Pharmacology, Hôpital Pellegrin, Universitè de Bordeaux II, France.

Since both (R)- and (S)-enantiomers of ibuprofen may act on the central nervous system, we investigated their plasma and cerebrospinal fluid (CSF) concentrations in 46 patients with nerve-root compression pain requiring a lumbar puncture. Each patient received an oral dose of 800 mg rac-ibuprofen. A single blood and CSF sample was drawn concomitantly from each patient at intervals between 30 min and 8 h after dosing. Both isomers peaked later in the CSF (3 h) than in the plasma (1.5 h). Their CSF concentrations became higher than their concurrent free plasma concentrations after 90 min. The estimated elimination half-lives of (R)- and (S)-ibuprofen were 1.7 h and 2.5 h in plasma and 3.9 h and 7.9 h in CSF, respectively. The AUCCSF/AUCplasma ratios (0, 8 h) were 0.009 and 0.015 for the (R)- and (S)-forms, respectively.

UI MeSH Term Description Entries
D007052 Ibuprofen A non-steroidal anti-inflammatory agent with analgesic, antipyretic, and anti-inflammatory properties Advil,Benzeneacetic Acid, alpha-methyl-4-(2-methylpropyl)- trimethylsilyl ester,Brufen,Ibumetin,Ibuprofen, (+-)-Isomer,Ibuprofen, (R)-Isomer,Ibuprofen, (S)-Isomer,Ibuprofen, Aluminum Salt,Ibuprofen, Calcium Salt,Ibuprofen, Copper (2+) Salt,Ibuprofen, Magnesium Salt,Ibuprofen, Potassium Salt,Ibuprofen, Sodium Salt,Ibuprofen, Zinc Salt,Ibuprofen-Zinc,Motrin,Nuprin,Rufen,Salprofen,Trauma-Dolgit Gel,alpha-Methyl-4-(2-methylpropyl)benzeneacetic Acid,Ibuprofen Zinc,Trauma Dolgit Gel
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010146 Pain An unpleasant sensation induced by noxious stimuli which are detected by NERVE ENDINGS of NOCICEPTIVE NEURONS. Suffering, Physical,Ache,Pain, Burning,Pain, Crushing,Pain, Migratory,Pain, Radiating,Pain, Splitting,Aches,Burning Pain,Burning Pains,Crushing Pain,Crushing Pains,Migratory Pain,Migratory Pains,Pains, Burning,Pains, Crushing,Pains, Migratory,Pains, Radiating,Pains, Splitting,Physical Suffering,Physical Sufferings,Radiating Pain,Radiating Pains,Splitting Pain,Splitting Pains,Sufferings, Physical
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000284 Administration, Oral The giving of drugs, chemicals, or other substances by mouth. Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
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
D013129 Spinal Puncture Tapping fluid from the subarachnoid space in the lumbar region, usually between the third and fourth lumbar vertebrae. Lumbar Puncture,Spinal Tap,Lumbar Punctures,Puncture, Lumbar,Puncture, Spinal,Punctures, Lumbar,Punctures, Spinal,Spinal Punctures,Spinal Taps,Tap, Spinal,Taps, Spinal

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