6533b829fe1ef96bd1289913

RESEARCH PRODUCT

Distribution of chlorpromazine in a simplified blood influenced by various drugs

K. TschentscherI. HahnG. KrieglsteinJosef Krieglstein

subject

ErythrocytesChlorpromazineIndomethacinSuraminBenzoatesBinding CompetitiveIncubation periodCoumarinsmedicineAnimalsDistribution (pharmacology)CentrifugationThiopentalBovine serum albuminChlorpromazinePharmacologySulfonamidesBinding SitesChromatographyQuininebiologyProbenecidChemistryFatty AcidsAqueous two-phase systemAlbuminSerum Albumin BovineGeneral MedicineChlorothiazideTetracyclineAntidepressive AgentsSalicylatesAcetazolamidePhenylbutazoneSolubilityPhenytoinbiology.proteinCattleUltracentrifugeDeoxycholic AcidProtein Bindingmedicine.drug

description

The binding of chlorpromazine to erythrocytes and to albumin as influenced by other drugs was studied in a simplified blood (31.5±0.3% bovine erythrocytes, 4 g-% bovine serum albumin in 0.02 M phosphate buffer solution containing 0.15 M NaCl). the total concentration of chlorpromazine in the simplified blood was 10−4 M, the concentration of the displacing drugs was 10−3 M. After an incubation period of 3 h at 22° C the chlorpromazine concentration was determined in the albumin solution after centrifugation of the blood at 3000×g and in the aqueous phase after ultracentrifugation at 150000×g. Under control conditions 68.1±0.9% of chlorpromazine was bound to the erythrocytes, 28.5±0.9% was bound to albumin and 3.5±0.2% was free in the aqueous phase.

https://doi.org/10.1007/bf00501861