Quviviq vs. Dayvigo

See how Quviviq and Dayvigo compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Quviviq and Dayvigo are both dual orexin receptor antagonists that treat insomnia by blocking wake-promoting brain signals rather than sedating the brain broadly.

  • Quviviq comes in two fixed doses, 25 mg and 50 mg, with no titration needed, while Dayvigo is dosed at 5 mg or 10 mg nightly.

  • Dayvigo typically costs less out of pocket than Quviviq, but Quviviq needs no dose adjustment for kidney problems.

Quviviq vs. Dayvigo Drug Summary

Quviviq

Quviviq (daridorexant) is a dual orexin receptor antagonist that treats insomnia in adults by blocking the natural signals that keep you awake. It comes in two fixed doses, 25 mg and 50 mg, taken once nightly, with no titration schedule needed.

Dayvigo

Dayvigo (lemborexant) is also a dual orexin receptor antagonist that treats insomnia in adults who have trouble falling or staying asleep. It's taken once nightly as a 5 mg or 10 mg tablet, and also requires no titration.

Quviviq vs. Dayvigo Side Effects

Quviviq

Most common
nasopharyngitis (up to 9.0%)
headache (up to 6.5%)
somnolence (5% to 7%)
fatigue (5% to 7%)

Dayvigo

Most common
nasopharyngitis (up to 3%)
headache (up to 6%)
somnolence (up to 10%)
diarrhea (up to 3%)

Quviviq vs. Dayvigo Dosage

Quviviq

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 25 mg once nightly At the start
Maximum dose 50 mg once nightly If needed
Dose changes 1 increase As tolerated

Dayvigo

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 5 mg once nightly At the start
Maximum dose 10 mg once nightly If needed
Dose changes 1 increase As tolerated

Quviviq vs. Dayvigo Indications

Quviviq

Quviviq is FDA-approved to treat insomnia in adults who have trouble falling asleep, staying asleep, or both. It is not approved for narcolepsy and hasn't been studied in children.

  • Difficulty falling asleep

  • Difficulty staying asleep

  • Adults only, not approved for children

  • Not approved for narcolepsy

  • Schedule IV controlled substance

Dayvigo

Dayvigo is FDA-approved to treat insomnia in adults with difficulty falling asleep, staying asleep, or both. It hasn't been studied in children and is not approved for narcolepsy.

  • Difficulty falling asleep

  • Difficulty staying asleep

  • Adults only, not approved for children

  • Not approved for narcolepsy

  • Schedule IV controlled substance

Quviviq vs. Dayvigo Pros and Cons

Quviviq

Quviviq offers two fixed nightly doses with no titration period, and clinical trials showed no signs of physical dependence or withdrawal after stopping. Its monthly list price tends to run higher than some other orexin blockers on the market.

Pros

  • No dose adjustment needed for kidney problems

  • No signs of physical dependence or withdrawal in clinical trials

  • Simple two-dose lineup (25 mg or 50 mg) with no titration schedule

Cons

  • Requires dose reduction for moderate liver impairment, not recommended in severe cases

  • Typically costs more out of pocket: roughly $520 to $685 per month without insurance, before savings programs

  • Newer to market, so less long-term real-world data than lemborexant

Dayvigo

Dayvigo has a longer track record since its 2019 approval, including 12-month trial data showing sustained sleep benefit without rebound insomnia. It carries more drug interaction restrictions and typically costs less out of pocket than newer options.

Pros

  • Long-term data showing sustained benefit without rebound insomnia after stopping

  • Generally lower out-of-pocket cost: roughly $135 to $400 per month without insurance, before savings programs

  • On the market longer, since 2019, with a broader track record of use

Cons

  • Must be avoided with strong or moderate CYP3A inhibitors or inducers, limiting use with many common medications

  • No generic version currently available

  • Reports of abnormal dreams and nightmares in some patients

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