Plasma exchange is currently being used to treat a variety of disorders including immune complex and hematologic disorders. It has been shown that the removal of plasma removes drugs bound to plasma proteins. This case documents the removal of phenytoin during plasma exchange therapy. Total and free
Zidovudine removal during plasma exchange
โ Scribed by Dr. F. Fauvelle; A. Leon; O. Petitjean; L. Guillevin
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 280 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0733-2459
No coin nor oath required. For personal study only.
โฆ Synopsis
Pharmacokinetics of zidovudine (azidothymidine, AZT) were investigated after oral administration (300 mg every 8 hours) in a human immunodeficiency virus seropositive patient who was also treated with plasma exchange (60 ml/kg). Plasma AZT concentrations were measured using high performance liquid chromatography assay. Plasma exchange clearances reached 1-3.8% of the total clearance. The fraction of AZT removed from separated plasma accounted for only 1% of the administered dose. The contribution of plasma exchange to the elimination of AZT appears to be negligible. Solely on the basis of AZT pharmacokinetic data, no particular dose adjustment appears to be necessary in patients treated with multiple plasma exchanges.
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