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Interazioni tra farmaci

Atorvastatin + Letermovir

Gravità: Maggiore

Atorvastatin and Letermovir: major interaction.

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Sintesi

Letermovir increases atorvastatin exposure, raising the risk of myopathy and rhabdomyolysis. Atorvastatin may also affect letermovir through OATP1B1/3 competition, though this is less important.

Cosa significa questa interazione in parole semplici

Atorvastatin and Letermovir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Atorvastatin belongs to Cardiovascular; Letermovir belongs to Anti Virals.

Livello di evidenza: High

Perché avviene

Letermovir inhibits CYP3A4 and OATP1B1/3, reducing atorvastatin metabolism and hepatic uptake.

Cosa fare

Limit atorvastatin to no more than 20 mg daily and monitor for myopathy. Avoid atorvastatin if letermovir is given with cyclosporine.

Cosa chiedere al farmacista

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Domande frequenti

Can I take Atorvastatin with Letermovir?

MediHelp rates the interaction as major. Atorvastatin and Letermovir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Letermovir increases atorvastatin exposure, raising the risk of myopathy and rhabdomyolysis. Atorvastatin may also affect letermovir through OATP1B1/3 competition, though this is less important.

How serious is the interaction between Atorvastatin and Letermovir?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Limit atorvastatin to no more than 20 mg daily and monitor for myopathy. Avoid atorvastatin if letermovir is given with cyclosporine.

What other medicines interact with Atorvastatin?

MediHelp also lists interactions of Atorvastatin with, for example, Tipranavir, Atazanavir, Clarithromycin. The full list is on the Atorvastatin page.

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