Istradefylline and Nifedical XL

In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.

Consumer information for this interaction is not currently available.MONITOR: Coadministration with moderate inhibitors of CYP450 3A4 may increase the plasma concentrations of istradefylline, which is primarily metabolized by CYP450 3A4 and 1A1. In study subjects, administration of a single 40 mg dose of istradefylline with the potent CYP450 3A4 inhibitor ketoconazole (200 mg twice daily for 4 days) increased the total systemic exposure (AUC(inf)) of istradefylline by 2.5-fold. No data are available regarding the effects that other, less potent CYP450 3A4 inhibitors will have on the pharmacokinetics of istradefylline. MANAGEMENT: Caution is advised if istradefylline is used with moderate CYP450 3A4 inhibitors. It is unknown if istradefylline will require a dosage adjustment if coadministered with a moderate CYP450 3A4 inhibitor. Clinical and laboratory monitoring of istradefylline should be considered whenever a moderate CYP450 3A4 inhibitor is added to or withdrawn from therapy. Patients should be monitored for adverse effects including dyskinesia, impulse control issues, dizziness, constipation, nausea, hallucinations, and insomnia. References "Product Information. Nourianz (istradefylline)." Kyowa Kirin, Inc, Bedminster, NJ.

MONITOR: Coadministration with moderate inhibitors of CYP450 3A4 may increase the plasma concentrations of istradefylline, which is primarily metabolized by CYP450 3A4 and 1A1. In study subjects, administration of a single 40 mg dose of istradefylline with the potent CYP450 3A4 inhibitor ketoconazole (200 mg twice daily for 4 days) increased the total systemic exposure (AUC(inf)) of istradefylline by 2.5-fold. No data are available regarding the effects that other, less potent CYP450 3A4 inhibitors will have on the pharmacokinetics of istradefylline.

MANAGEMENT: Caution is advised if istradefylline is used with moderate CYP450 3A4 inhibitors. It is unknown if istradefylline will require a dosage adjustment if coadministered with a moderate CYP450 3A4 inhibitor. Clinical and laboratory monitoring of istradefylline should be considered whenever a moderate CYP450 3A4 inhibitor is added to or withdrawn from therapy. Patients should be monitored for adverse effects including dyskinesia, impulse control issues, dizziness, constipation, nausea, hallucinations, and insomnia.

Istradefylline

Generic Name: istradefylline

Brand name: Nourianz

Synonyms: n.a.

What is Istradefylline?

Nifedical XL

Generic Name: nifedipine

Brand name: Adalat CC, Afeditab CR, Nifediac CC, Nifedical XL, Procardia, Procardia XL, Adalat

Synonyms: Nifedical XL (Oral)

What is Nifedical XL?