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Pharmacokinetic interactions between zileuton and prednisone
W M Awni1, J H Cavanaugh, T B Tzeng
1Pharmacokinetics and Biopharmaceutics Department, Abbott Laboratories, Abbott Park, Illinois, USA.
Clinical Pharmacokinetics
|January 1, 1995
Summary
Zileuton does not significantly affect prednisolone pharmacokinetics, and prednisone has minimal impact on zileuton. Coadministration of these drugs is considered safe with low risk of clinical interaction.
Area of Science:
- Pharmacology
- Drug Interactions
- Clinical Pharmacokinetics
Background:
- Zileuton is used for asthma management.
- Prednisone is a corticosteroid with broad anti-inflammatory effects.
- Understanding potential drug interactions is crucial for patient safety.
Purpose of the Study:
- To evaluate the pharmacokinetic interaction between zileuton and prednisone.
- To assess the effect of multiple-dose zileuton on single-dose prednisone pharmacokinetics.
- To determine the effect of single-dose prednisone on steady-state zileuton pharmacokinetics.
Main Methods:
- Randomized, double-blind, placebo-controlled, crossover study design.
- Participants received either zileuton or placebo, followed by prednisone.
- Pharmacokinetic parameters including Cmax, tmax, AUC, and t1/2 were measured.
Main Results:
- Multiple doses of zileuton did not significantly alter prednisolone Cmax, tmax, or AUC.
- A minor, clinically insignificant increase in prednisolone half-life was observed with zileuton.
- Prednisone slightly decreased zileuton AUC and tmax but not to a clinically significant extent.
Conclusions:
- Zileuton and prednisone can likely be coadministered.
- Minimal risk of clinically significant pharmacokinetic interactions between zileuton and prednisone.
- Further clinical monitoring may be warranted based on individual patient factors.