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What Is Quviviq?

Quviviq is a prescription medication containing daridorexant, a dual orexin receptor antagonist. It is approved to treat insomnia in adults who have difficulty falling asleep, staying asleep, or both. Quviviq is available as 25 mg and 50 mg oral tablets and is classified as a Schedule IV controlled substance in the United States. It promotes sleep by reducing wakefulness signals in the brain rather than acting through the same mechanism as benzodiazepines. Treatment requires attention to other sedating medications, liver function, and the risk of next-day impairment.

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What Is Quviviq?

Quviviq is a prescription medication containing daridorexant, a dual orexin receptor antagonist. It is approved to treat insomnia in adults who have difficulty falling asleep, staying asleep, or both. Quviviq is available as 25 mg and 50 mg oral tablets and is classified as a Schedule IV controlled substance in the United States. It promotes sleep by reducing wakefulness signals in the brain rather than acting through the same mechanism as benzodiazepines. Treatment requires attention to other sedating medications, liver function, and the risk of next-day impairment.

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How Does Quviviq Work?

Quviviq blocks orexin-1 and orexin-2 receptors in the brain. Orexin neuropeptides help maintain wakefulness and alertness, particularly during periods when the body is expected to remain awake. By blocking orexin signaling, daridorexant reduces the drive to stay awake and can help patients fall asleep and remain asleep. Unlike benzodiazepines, Quviviq does not act primarily by increasing GABA receptor activity. It does not correct every cause of insomnia, and ongoing sleep problems may require evaluation for underlying medical, psychiatric, or sleep-related conditions.

What Type of Insomnia Does Quviviq Treat?

Quviviq is approved for adults with insomnia involving difficulty initiating sleep, maintaining sleep, or both. Insomnia can involve prolonged time needed to fall asleep, frequent nighttime awakenings, or difficulty returning to sleep. A healthcare professional considers sleep patterns, other medications, alcohol use, mental health, and possible breathing-related sleep disorders before prescribing treatment. Quviviq is contraindicated in patients with narcolepsy because blocking orexin signaling can worsen symptoms related to impaired wakefulness regulation. It is not approved for children or intended to treat excessive daytime sleepiness.

How Should Quviviq Be Taken?

The recommended Quviviq dose is 25 mg to 50 mg orally no more than once per night, within 30 minutes before bedtime. Patients should take it only when at least seven hours remain before their planned awakening. Food can delay the onset of its effects. Patients with moderate liver impairment should not exceed 25 mg nightly, and Quviviq is not recommended in severe liver impairment. Strong CYP3A4 inhibitors should be avoided, while moderate inhibitors require a maximum dose of 25 mg. Patients should not combine Quviviq with alcohol or other sleep medications without medical guidance.

What Are the Side Effects and Warnings of Quviviq?

Common adverse effects include headache, sleepiness, dizziness, and fatigue. Quviviq can impair alertness and coordination the following morning, creating driving and fall risks. Serious concerns include worsening depression or suicidal thinking, sleep paralysis, hallucinations occurring around sleep transitions, and temporary weakness resembling cataplexy. Complex sleep behaviors, such as sleepwalking or driving without full awareness, can also occur and require discontinuation. Patients with compromised respiratory function need careful assessment. Combining Quviviq with alcohol, opioids, or other sedatives increases the risk of central nervous system depression.

Common Questions About Quviviq

Is Quviviq the same as daridorexant?

Yes. Quviviq is the brand name for daridorexant, a dual orexin receptor antagonist approved to treat insomnia in adults.

Is Quviviq a benzodiazepine?

No. Quviviq is an orexin receptor antagonist and works differently from benzodiazepine sleep medications.

How long should someone sleep after taking Quviviq?

Patients should allow at least seven hours before their planned awakening to reduce the risk of next-day impairment.

Can Quviviq cause sleepwalking?

Yes. Complex sleep behaviors can occur. If sleepwalking or another activity without full awareness occurs, Quviviq should be stopped and medical advice obtained.

References

DailyMed - QUVIVIQ (daridorexant) tablet, film coated. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=3a2d1503-b816-40c9-9fac-7e03c5a3bcef. Date Accessed November 3, 2026.

Daridorexant. MedlinePlus. https://medlineplus.gov/druginfo/meds/a622034.html. Date Accessed November 3, 2026.

Daridorexant. PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/daridorexant. Date Accessed November 3, 2026.

Quviviq. European Medicines Agency. https://www.ema.europa.eu/en/medicines/human/EPAR/quviviq. Date Accessed November 3, 2026.

Safety and Efficacy of Daridorexant in Patients With Insomnia Disorder: Results From Two Multicentre, Randomised, Double-Blind, Placebo-Controlled, Phase 3 Trials. The Lancet Neurology. https://pubmed.ncbi.nlm.nih.gov/35065036/. Date Accessed November 3, 2026.