Gonçalves PVB, Cavalli RC, da Cunha SP, Lanchote VL. Determination of pindolol enantiomers in amniotic fluid and breast milk by high-performance liquid chromatography: Applications to pharmacokinetics in pregnant and lactating women.
J Chromatogr B Analyt Technol Biomed Life Sci 2007;
852:640-5. [PMID:
17307403 DOI:
10.1016/j.jchromb.2007.01.015]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2006] [Revised: 01/05/2007] [Accepted: 01/09/2007] [Indexed: 11/29/2022]
Abstract
A method for the determination of pindolol enantiomers in amniotic fluid and breast milk was developed, validated, and applied to the investigation of six pregnant women treated with rac-pindolol (10 mg/12 h). Biological samples were extracted with tert-methyl-butyl ether, and the pindolol enantiomers were resolved on a Chiralpak AD column. Amniotic fluid/plasma and milk/plasma concentrations ratios ranged from 0.4 to 4.5 and from 0.6 to 3.7, respectively, for (+)-R-pindolol and from 0.5 to 3.5 and from 1.1 to 2.8, respectively, for (-)-S-pindolol. Preliminary data suggest that amniotic fluid and breast milk are routes of fetal exposure to pindolol enantiomers.
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