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British Journal of Clinical Pharmacology logoLink to British Journal of Clinical Pharmacology
. 1984 Nov;18(5):785–790. doi: 10.1111/j.1365-2125.1984.tb02543.x

The protein binding of timegadine determined by equilibrium dialysis.

S George, A McBurney, J Ward
PMCID: PMC1463545  PMID: 6508987

Abstract

The protein binding of timegadine to albumin, serum, plasma and plasma enriched with the acute phase reactants alpha 1-acid glycoprotein, alpha 1-anti-trypsin and C-reactive protein was determined by equilibrium dialysis. The effects of other analgesic and anti-inflammatories (indomethacin, ketoprofen, paracetamol and sodium salicylate) and other basic drugs (disopyramide, lignocaine, propranolol and quinidine) on the binding of timegadine were also determined. Timegadine binding was concentration-dependent up to 0.5 micrograms/ml, but independent above this level up to 10.0 micrograms/ml, the mean and standard error being 93.8 +/- 0.5%. Albumin accounted for only 32.4% of timegadine bound to plasma. Plasma enrichment with the acute phase reactants led to significant increases in timegadine binding. Simultaneous dialysis with other drugs caused significant decreases in timegadine binding.

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Selected References

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