Estazolam and Voriconazole interaction

Estazolam and Voriconazole: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Estazolam label · effective 2024-02-05

Major

Consequently, estazolam should be avoided in patients receiving ketoconazole and itraconazole, which are very potent inhibitors of CYP3A (see CONTRAINDICATIONS ).

Warningsby drug classView label on DailyMed

From the Voriconazole label · effective 2026-06-02

Moderate

Eszopiclone (CYP3A4 Inhibition) Not Studied In Vivo or In Vitro , but Drug Plasma Exposure Likely to be Increased which may Increase the Sedative Effect of Eszopiclone Dose reduction of eszopiclone is recommended.

Drug interactionsby drug classView label on DailyMed
Moderate

Midazolam (CYP3A4 Inhibition) Significantly Increased Increased plasma exposures may increase the risk of adverse reactions and toxicities related to benzodiazepines.

Drug interactionsby drug classView label on DailyMed
Moderate

Other benzodiazepines including triazolam and alprazolam (CYP3A4 Inhibition) In Vitro Studies Demonstrated Potential for Voriconazole to Inhibit Metabolism (Increased Plasma Exposure) HMG-CoA Reductase Inhibitors (Statins) (CYP3A4 Inhibition) In Vitro Studies Demonstrated Potential for Voriconazole to Inhibit Metabolism (Increased Plasma Exposure) Frequent monitoring…

Drug interactionsby drug classView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.