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Juvisync and Onmel

Determining the interaction of Juvisync and Onmel and the possibility of their joint administration.

Check result:
Juvisync <> Onmel
Relevance: 12.11.2022 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:

Using itraconazole and simvastatin is not recommended. Taking these drugs together can cause symptoms of unexplained muscle pain or tenderness, muscle weakness, fever or flu symptoms, and dark colored urine. 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:

CONTRAINDICATED: Itraconazole increases the plasma concentrations of some HMG-CoA reductase inhibitors and may increase the risk of rhabdomyolysis. The mechanism has been reported to be inhibition of hepatic CYP450 3A4 enzymes responsible for HMG-CoA reductase inhibitor metabolism. Itraconazole greatly increases levels of lovastatin and its active metabolite, lovastatin acid and significantly increases simvastatin levels.

MANAGEMENT: The concurrent use of itraconazole with lovastatin and simvastatin is considered contraindicated by the manufacturer. When concomitant use of an azole antifungal and an HMG-CoA reductase inhibitor is required, pravastatin which is not metabolized by CYP450 enzymes, or fluvastatin which is metabolized by CYP450 2C9, are recommended.

References
  • Canadian Pharmacists Association "e-CPS. Available from: URL: http://www.pharmacists.ca/function/Subscriptions/ecps.cfm?link=eCPS_quikLink."
  • Neuvonen PJ, Kantola T, Kivisto KT "Simvastatin but not pravastatin is very susceptible to interaction with the CYP3A4 inhibitor itraconazole." Clin Pharmacol Ther 63 (1998): 332-41
  • Holtzman CW, Wiggins BS, Spinler SA "Role of P-glycoprotein in statin drug interactions." Pharmacotherapy 26 (2006): 1601-7
  • Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  • Cerner Multum, Inc. "Australian Product Information." O 0
  • Lomaestro BM, Piatek MA "Update on drug interactions with azole antifungal agents." Ann Pharmacother 32 (1998): 915-28
  • Kivisto KT, Kantola T, Neuvonen PJ "Different effects of itraconazole on the pharmacokinetics of fluvastatin and lovastatin." Br J Clin Pharmacol 46 (1998): 49-53
  • Neuvonen PJ, Jalava KM "Itraconazole drastically increases plasma concentrations of lovastatin and lovastatin acid." Clin Pharmacol Ther 60 (1996): 54-61
  • Horn M "Coadministration of itraconazole with hypolipidemic agents may induce rhabdomyolysis in healthy individuals." Arch Dermatol 132 (1996): 1254
  • Lees RS, Lees AM "Rhabdomyolysis from the coadministration of lovastatin and the antifungal agent itraconazole." N Engl J Med 333 (1995): 664-5
Juvisync

Generic Name: simvastatin / sitagliptin

Brand name: Juvisync

Synonyms: n.a.

Onmel

Generic Name: itraconazole

Brand name: Onmel, Sporanox, Sporanox PulsePak, Tolsura

Synonyms: n.a.

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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