Daridorexant and Darunavir and cobicistat interaction

Daridorexant and Darunavir and cobicistat: 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 Daridorexant (QUVIVIQ) label · effective 2026-02-26

Major

Strong CYP3A4 inhibitors: Avoid concomitant use.

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Major

Concomitant use of QUVIVIQ with a strong inhibitor of CYP3A4 is not recommended [see Dosage and Administration (2.2) ] .

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Moderate

Moderate CYP3A4 inhibitors: Maximum recommended dose is 25 mg.

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Moderate

Table 2 Effects of Other Drugs on QUVIVIQ Strong or Moderate CYP3A4 Inhibitors Clinical Implications: Concomitant use with a strong or moderate CYP3A4 inhibitor increases exposure to daridorexant [see Clinical Pharmacology (12.3) ] , which may increase the risk of QUVIVIQ adverse reactions.

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Moderate

Prevention or Management: The recommended dose of QUVIVIQ is 25 mg when used with a moderate CYP3A4 inhibitor [see Dosage and Administration (2.2) ] .

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From the Darunavir and cobicistat (PREZCOBIX) label · effective 2026-02-01

Major

…modifying agents: lomitapide, lovastatin, simvastatin Opioid Antagonist: naloxegol PDE-5 inhibitor: sildenafil when used for treatment of pulmonary arterial hypertension Sedatives/hypnotics: orally administered midazolam, triazolam PREZCOBIX or PREZCOBIX PED is contraindicated in patients receiving certain co-administered drugs for which altered plasma concentrations…

Contraindicationsby drug classView label on DailyMed
Major

Sedatives/hypnotics: orally administered midazolam, triazolam ↑ midazolam ↑ triazolam Co-administration is contraindicated due to potential for serious and/or life-threatening reactions such as prolonged or increased sedation or respiratory depression.

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Moderate

…PREZCOBIX or PREZCOBIX PED may cause large increases in the concentrations of these benzodiazepines. metabolized by CYP3A: e.g. buspirone, diazepam, estazolam, zolpidem ↑ sedatives/hypnotics With concomitant use, titration is recommended with sedatives/hypnotics metabolized by CYP3A and a lower dose of the sedatives/hypnotics should be considered with monitoring…

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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.