Dược Động Học :
▧ Metabolism :
Elimination is largely by conjugation, without participation of cytochrome P-450 enzymes. Methylation, glucuronidation, and sulfation are the main routes of conjugation.
▧ Route of Elimination :
Radiolabeled studies show that about 90% of infused fenoldopam is eliminated in urine, 10% in feces.
Elimination is largely by conjugation, without participation of cytochrome P-450 enzymes. Only 4% of the administered dose is excreted unchanged.
▧ Half Life :
The elimination half-life is about 5 minutes in mild to moderate hypertensives, with little difference between the R (active) and S isomers.