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Itraconazole and Zileuton Tablets

Determining the interaction of Itraconazole and Zileuton Tablets and the possibility of their joint administration.

Check result:

Itraconazole <> Zileuton Tablets

Relevance: 15.12.2022 Reviewer: Shkutko P.M., M.D., in

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:

Itraconazole may increase the blood levels and effects of zileuton. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Professional:

MONITOR: Coadministration with itraconazole may significantly increase the plasma concentrations of drugs that are substrates of the CYP450 3A4 isoenzyme. The mechanism is decreased clearance due to inhibition of CYP450 3A4 activity by itraconazole.

MANAGEMENT: Caution is advised if itraconazole must be used concomitantly with medications that undergo metabolism by CYP450 3A4, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever itraconazole is added to or withdrawn from therapy.

References

Kaukonen KM, Olkkola KT, Neuvonen PJ "Itraconazole increases plasma concentrations of quinidine." Clin Pharmacol Ther 62 (1997): 510-7
Auclair B, Berning SE, Huitt GA, Peloquin CP "Potential interaction between itraconazole and clarithromycin." Pharmacotherapy 19 (1999): 1439-44
Lukkari E, Juhakoski A, Aranko K, Neuvonen PJ "Itraconazole moderately increases serum concentrations of oxybutynin but does not affect those of the active metabolite." Eur J Clin Pharmacol 52 (1997): 403-6
Varis T, Kaukonen KM, Kivisto KT, Neuvonen PJ "Plasma concentrations and effects of oral methylprednisolone are considerably increased by itraconazole." Clin Pharmacol Ther 64 (1998): 363-8
Chiba M, Hensleigh M, Nishime JA, Balani SK, Lin JH "Role of cytochrome P450 3A4 in human metabolism of MK-639, a potent human immunodeficiency virus protease inhibitor." Drug Metab Dispos 24 (1996): 307-14
"Product Information. Sporanox (itraconazole)." Janssen Pharmaceutica, Titusville, NJ.
Gillies J, Hung KA, Fitzsimons E, Soutar R "Severe vincristine toxicity in combination with itraconazole." Clin Lab Haematol 20 (1998): 123-4
Tailor SAN "Peripheral edema due to nifedipine-itraconazole interaction: a case report." Arch Dermatol 132 (1996): 1374

Itraconazole

Generic Name: itraconazole

Brand name: Onmel, Sporanox, Sporanox PulsePak, Tolsura

Synonyms: n.a.

What is Itraconazole?

Zileuton Tablets

Generic Name: zileuton

Brand name: Zyflo, Zyflo CR

Synonyms: Zileuton

What is Zileuton Tablets?

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In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.

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