藥物交互作用
Elvitegravir / cobicistat / emtricitabine / tenofovir df + Valacyclovir
嚴重程度: 中度
Elvitegravir / cobicistat / emtricitabine / tenofovir df and Valacyclovir: moderate interaction.
最後更新
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摘要
Acyclovir, formed from valacyclovir, emtricitabine and tenofovir are all cleared by renal filtration and tubular secretion. Co-administration can raise levels of each and tenofovir adds nephrotoxic potential.
用白話說明這項交互作用的意義
Elvitegravir / cobicistat / emtricitabine / tenofovir df and Valacyclovir can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
為什麼會發生
Competition for renal tubular secretion plus additive nephrotoxicity, and cobicistat further reduces tubular creatinine secretion.
處置方式
Monitor serum creatinine, phosphate and urinalysis regularly. Adjust the valacyclovir dose to renal function and stop the combination if renal function worsens.
可向藥師詢問的問題
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Valacyclovir 的其他交互作用
常見問題
Can I take Elvitegravir / cobicistat / emtricitabine / tenofovir df with Valacyclovir?
MediHelp rates the interaction as moderate. Elvitegravir / cobicistat / emtricitabine / tenofovir df and Valacyclovir can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Acyclovir, formed from valacyclovir, emtricitabine and tenofovir are all cleared by renal filtration and tubular secretion. Co-administration can raise levels of each and tenofovir adds nephrotoxic potential.
How serious is the interaction between Elvitegravir / cobicistat / emtricitabine / tenofovir df and Valacyclovir?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum creatinine, phosphate and urinalysis regularly. Adjust the valacyclovir dose to renal function and stop the combination if renal function worsens.
What other medicines interact with Valacyclovir?
MediHelp also lists interactions of Valacyclovir with, for example, Talimogene laherparepvec, Bacitracin, Cilastatin-imipenem. The full list is on the Valacyclovir page.
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