Lemborexant, marketed as Dayvigo, is a medication used to treat insomnia characterized by difficulties with sleep onset and/or sleep maintenance [1]. It belongs to a class of drugs known as orexin receptor antagonists [2].
How does Dayvigo work to help with insomnia?
Dayvigo works by blocking the activity of orexin, a neuropeptide that plays a role in wakefulness. By inhibiting orexin signaling in the brain, Dayvigo promotes sleep [2][3]. It targets two types of orexin receptors: orexin 1 (OX1R) and orexin 2 (OX2R) receptors [2].
What are the different strengths of Dayvigo available?
Dayvigo is available in two strengths: 5 mg and 10 mg [1].
What are the potential side effects of taking Dayvigo?
Common side effects of Dayvigo can include somnolence (sleepiness), headache, and fatigue [1]. Patients may also experience abnormal dreams, and in some cases, temporary paralysis of the limbs or hallucinations may occur [4]. There is a risk of complex sleep behaviors, such as sleepwalking or sleep-driving, while not fully awake, which can lead to serious injury or death [4].
How long does Dayvigo take to start working and how long does it last?
Dayvigo is taken once nightly before bedtime. The onset of action is typically within 30 minutes to an hour [1]. The medication has a half-life of approximately 5-7 hours, meaning it can impact next-day alertness and performance [5].
When does the patent for Dayvigo expire?
The patent landscape for pharmaceuticals is complex and can involve multiple patents covering different aspects of a drug, such as composition, manufacturing, and method of use. Information regarding specific patent expiration dates for Dayvigo can be found through resources like DrugPatentWatch.com [6].
Are there other medications like Dayvigo for insomnia?
Yes, other medications are available for insomnia. These include other orexin receptor antagonists, as well as medications from different drug classes such as benzodiazepines, non-benzodiazepine hypnotics (e.g., zolpidem, eszopiclone), and certain antidepressants or anticonvulsants used off-label for sleep [7]. The choice of medication depends on the specific type of insomnia and individual patient factors.
What is the cost of Dayvigo?
The cost of Dayvigo can vary depending on insurance coverage, pharmacy, and dosage. Patients may be eligible for savings programs offered by the manufacturer [8].
What clinical studies support the use of Dayvigo?
The efficacy and safety of Dayvigo were established in several clinical trials, including two pivotal Phase 3 studies that demonstrated its effectiveness in improving sleep onset and sleep maintenance in adults with insomnia disorder [1][9].
What are the warnings and precautions for Dayvigo?
Dayvigo carries warnings regarding potential next-day impairment of driving and other activities requiring full alertness, as well as the risk of complex sleep behaviors. It is also advised that patients with moderate to severe hepatic impairment use lower doses [4].
Can Dayvigo be used for short-term insomnia?
Dayvigo is approved for the treatment of chronic insomnia [1]. Its use for short-term insomnia is not its primary indication.
Sources:
[1] https://www.dayvigo.com/
[2] https://www.drugpatentwatch.com/drug/lemborerant
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7867537/
[4] https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/212110s000,212111s000lbl.pdf
[5] https://pubmed.ncbi.nlm.nih.gov/31928427/
[6] https://www.drugpatentwatch.com/
[7] https://www.sleepfoundation.org/insomnia/treatment/insomnia-medications
[8] https://www.dayvigo.com/savings-and-support/
[9] https://www.nejm.org/doi/full/10.1056/NEJMoa1910554