The pharmacokinetics and metabolic chiral inversion of the S(+)-and R(-)-enantiomers of tiaprofenic acid (S -TIA, R-TIA) were assessed in vivo in rats, and in addition the biochemistry of inversion was investigated in vitro in rat liver homogenates. Drug enantiomer concentrations in plasma were inve
Disposition of enantiomers of sulpiride in humans and rats
β Scribed by Ayako Kamizono; Nobuo Inotsume; Shoji Fukushima; Masahiro Nakano; Yoshio Okamoto
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 322 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0142-2782
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β¦ Synopsis
Abstract
Pharmacokinetics of sulpiride enantiomers after intravenous administration of (Β±)β, (+)β, and (β)βsulpiride was examined in humans and rats. Pharmacokinetic profiles were similar in (+)β and (β)βenantiomers after intravenous administration of (Β±)βsulpiride. Metabolic inversion at a chiral centre was not observed after intravenous administration of each enantiomer in rats.
π SIMILAR VOLUMES
The absorption and disposition of methotrexate (MTX) in the plasma, synovial fluid (SF), skin, and muscle tissue were studied following administration of a topical MTX gel in rabbits and rats. In rabbits, MTX concentrations in the plasma increased steadily toward the peak (5.9 +/- 2.8 ng mL-1) which