Lunesta (eszopiclone) and Belsomra (suvorexant) are both prescription medications used to treat insomnia, but they belong to different drug classes and work through distinct mechanisms.
How do Lunesta and Belsomra work differently?
Lunesta is a nonbenzodiazepine hypnotic that acts on GABA-A receptors in the brain. By enhancing the effect of GABA, a neurotransmitter that inhibits nerve activity, Lunesta promotes sleep [1].
Belsomra, on the other hand, is an orexin receptor antagonist. Orexin is a neuropeptide that promotes wakefulness. Belsomra blocks the action of orexin by binding to its receptors, thereby reducing the drive to wake and promoting sleep [2].
What are the side effects of Lunesta and Belsomra?
Common side effects for Lunesta include an unpleasant taste, dry mouth, drowsiness, and headache [1].
Belsomra's side effects can include daytime drowsiness, headache, dizziness, and diarrhea [2]. Both medications carry a risk of complex sleep behaviors, such as sleepwalking or sleep-driving, which can occur with or without amnesia of the event [1][2].
When does the patent for Lunesta expire?
The primary patents for Lunesta have expired, allowing for the availability of generic versions. According to DrugPatentWatch.com, the last relevant patent for eszopiclone expired in 2020 [3].
When does the patent for Belsomra expire?
The patent landscape for Belsomra is more complex, with various patents covering different aspects of the drug. Information from DrugPatentWatch.com indicates that Belsomra has patents extending into the mid-2030s, although some may be subject to challenges [4].
Can generic versions of Belsomra be made?
As long as patents for Belsomra remain in effect and unchallenged, the production of generic versions is restricted. The expiration dates of these patents will determine when generic Belsomra can enter the market.
How effective are Lunesta and Belsomra for insomnia?
Both medications are generally effective in improving sleep onset and sleep maintenance for individuals with insomnia. Clinical trials have demonstrated that both Lunesta and Belsomra can reduce the time it takes to fall asleep and increase total sleep time compared to placebo [1][2]. However, individual responses to medications can vary.
What are the risks associated with taking sleep medications like Lunesta and Belsomra?
Beyond side effects, both Lunesta and Belsomra carry risks. These include the potential for dependence and withdrawal symptoms if stopped abruptly, as well as an increased risk of falls, especially in older adults [1][2]. It is important to use these medications exactly as prescribed and to discuss any concerns with a healthcare provider.
Sources:
[1] https://www.drugpatentwatch.com/drug/eszopiclone/lunesta
[2] https://www.drugpatentwatch.com/drug/suvorexant/belsomra
[3] https://www.drugpatentwatch.com/drug/eszopiclone
[4] https://www.drugpatentwatch.com/drug/suvorexant