Daridorexant (Quviviq)
A shorter-half-life dual orexin antagonist designed to reduce next-day sedation while helping both sleep onset and maintenance.
What it treats
Daridorexant is approved by the U.S. Food and Drug Administration for insomnia characterized by difficulties with sleep onset, sleep maintenance, or both, in adults.
Like other orexin antagonists, it should not be used in narcolepsy.
How it works
Daridorexant blocks orexin, the neuropeptide that keeps a person awake. Turning down that wakefulness signal helps sleep begin and helps sleep continue. Unlike benzodiazepines and z-drugs, it doesn't act on GABA-A receptors, which is why memory, cognitive, and dependence effects are less prominent.
The shorter half-life is the design point compared with suvorexant and lemborexant. If it clears faster from the body, morning grogginess is less likely, in theory and often in practice.
Receptor mechanism (detail)
Daridorexant is a dual orexin receptor antagonist (OX1R and OX2R). Its half-life is about 8 hours. That is shorter than suvorexant (12 hours) and lemborexant (17 to 19 hours), which is the main pharmacokinetic difference. Practical result: less residual next-day effect while still covering a normal night of sleep.
Potency and typical dosing pattern
Ranges are typical framework only, not a prescription for any individual.
25 mg or 50 mg at bedtime, taken within 30 minutes of intended sleep, with at least 7 hours remaining before wake time. Start with 25 mg; some patients benefit from 50 mg.
Safety monitoring
- Next-day sedation. Less than with lemborexant or suvorexant at comparable doses, but still possible, especially at 50 mg.
- Sleep paralysis and hypnagogic hallucinations, occasional.
- Complex sleep behaviors (sleepwalking, sleep-driving, sleep-eating), reported with orexin antagonists as a class.
- Depression and suicidality. Any new or worsening mood warrants prescriber contact.
- Schedule IV controlled substance. Misuse potential exists but is low.
- Not for use in narcolepsy.
What to expect
The first few doses
Sleep onset and sleep continuity often improve within the first several nights. The shorter half-life is intended to give a cleaner morning; some people notice they feel less groggy on daridorexant than on other orexin antagonists.
Common side effects
- Next-day drowsiness.
- Headache.
- Nightmares or abnormal dreams.
- Fatigue.
- Nausea.
If a side effect is bothersome or persistent, that's a conversation for the prescriber.
Serious side effects and warnings
Daridorexant does not carry an FDA boxed warning. Several labeled warnings are worth knowing.
- Next-day drowsiness and impaired driving. Less than with longer-half-life orexin antagonists, but not zero. Don't drive or do skilled tasks in the morning if you feel groggy.
- Complex sleep behaviors. Sleepwalking, sleep-driving, sleep-eating. Any of these means stop the medication and contact the prescriber.
- Sleep paralysis and hypnagogic hallucinations. Brief, usually not dangerous, but unsettling.
- Cataplexy-like symptoms. Brief leg weakness has been reported, uncommon.
- Worsening depression or suicidal thoughts warrant prescriber contact.
Sexual side effects
Daridorexant doesn't typically cause sexual side effects like reduced libido or delayed orgasm. As with other sleep drugs, the sleep-behavior concern is more relevant. Anything unusual done while not fully awake should be reported.
Weight, appetite, and sleep
Daridorexant is generally weight-neutral. It doesn't tend to change appetite. It's taken at bedtime for sleep, so daytime effects are limited beyond any morning residue.
Starting and dosing basics
This section is general background, not a dosing instruction for any individual. The right dose is a decision for a prescriber.
Daridorexant comes as tablets in 25 mg and 50 mg. Taken within 30 minutes of intended sleep, with at least 7 hours before waking.
Missed doses and interactions
Missed doses are simple: if the night is missed, just don't take it. Don't take it without a full night of sleep available.
Strong CYP3A4 inhibitors (ketoconazole, itraconazole, clarithromycin) can raise daridorexant levels and are usually avoided or require dose reduction. Strong CYP3A4 inducers (rifampin, some anticonvulsants) can reduce effectiveness.
Alcohol adds to sedation. Other CNS depressants (opioids, benzodiazepines) compound sedation and complex sleep behavior risk. Give every prescriber and pharmacist the full medication list.
Stopping and tapering
Daridorexant doesn't require a formal taper. Rebound insomnia is much less of a concern than with benzodiazepines or z-drugs. A check-in with the prescriber makes sense when stopping.
Pregnancy and breastfeeding
Data are limited. Individual circumstances matter, and the decision belongs with a clinician. Anyone pregnant, planning a pregnancy, or breastfeeding should talk it through with their prescriber.
Cost and generic availability
Daridorexant is a newer branded medication and is not yet available as a generic. Cost is significant compared with older generic sleep drugs. Insurance coverage varies. Manufacturer copay assistance may apply for eligible patients.
Common questions
How is daridorexant different from lemborexant or suvorexant? All three are dual orexin antagonists. The main difference is half-life: daridorexant is shortest (about 8 hours), suvorexant is intermediate (about 12 hours), lemborexant is longest (17 to 19 hours). Shorter half-life tends to mean less morning grogginess.
How is it different from Ambien? Ambien (zolpidem) works by ramping up GABA, the brain's calming system. Daridorexant blocks orexin, the wakefulness signal. Dependence and cognitive effects are lower with daridorexant.
Is it addictive? Its misuse liability is lower than benzodiazepines or z-drugs, which is why it's Schedule IV. Some potential exists.
Will I feel groggy the next day? Less commonly than with the other orexin antagonists, but still possible at 50 mg. Taking it only when at least 7 hours of sleep are available reduces the risk.
Can I take it if I have narcolepsy? No.
Questions to ask your prescriber
- Is daridorexant a good fit for the kind of insomnia I have?
- Should I start at 25 mg or 50 mg?
- How much sleep time do I need after taking it?
- Which of my other medications interact with it?
- If we decide to stop it later, how would we do that?
Sources
This guide draws on current prescribing information and public health references and current as of June 8, 2026. It is reviewed for clinical accuracy and updated as guidance changes.
- U.S. Food and Drug Administration. Daridorexant (Quviviq) prescribing information.
- MedlinePlus, U.S. National Library of Medicine. Daridorexant.
- American Academy of Sleep Medicine. Clinical Practice Guideline for the Pharmacologic Treatment of Chronic Insomnia in Adults.
- American Geriatrics Society. Beers Criteria for Potentially Inappropriate Medication Use in Older Adults (2023).
How Quviviq compares
Side-by-side guides to Quviviq and the medications it's most often weighed against.
Define this drug class in the network glossary Orexin receptor antagonist on Shrinktionary
THE KNOWLEDGE PATH
Walk this topic outward.
- MEDICATION Daridorexant (Quviviq) (current)
- CLASS Sleep medications
- CONDITION Sleep (on Shrinkopedia)
- MAP The Sleep & Anxiety Map (on AR)
- CARE Sleep care at shrinkMD
The Knowledge Path is a curated walk. Every step is one decision away from the next.
When to seek urgent help
Sleep medications can interact dangerously with alcohol, opioids, and other sedating medications, and a small number of people have unusual sleep behaviors.
- Severe drowsiness, slowed breathing, or unresponsiveness, especially after combining with alcohol, opioids, or other sedatives.
- Sleep behaviors you don't remember the next morning, such as driving, walking, eating, or making phone calls while not fully awake.
- Severe allergic reactions, such as swelling of the face, lips, or tongue, or trouble breathing.
Managing a medication needs a prescriber
Any psychiatric medication has to be started and adjusted by a clinician who can follow you over time. If you don't have a prescriber, our guides section explains the options, including in-person care and telepsychiatry, and how to choose between them.