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Meds & supplements  ›  Suvorexant

Medicine · Orexin Receptor Antagonist

Suvorexant

BELSOMRA ® (suvorexant) is indicated for the treatment of insomnia characterized by difficulties with sleep onset and/or sleep maintenance.

Medication guideLabel updated 2025-03-10

Selected manufacturer label information, organised into consistent sections by Sofidex. Read the full label at DailyMed ↗

Drug facts

Used for
BELSOMRA ® (suvorexant) is indicated for the treatment of insomnia characterized by difficulties with sleep onset and/or sleep maintenance.
How to take it
Take BELSOMRA exactly as your doctor tells you to take it.

What it is used for

BELSOMRA ® (suvorexant) is indicated for the treatment of insomnia characterized by difficulties with sleep onset and/or sleep maintenance. BELSOMRA is an orexin receptor antagonist indicated for the treatment of insomnia, characterized by difficulties with sleep onset and/or sleep maintenance.

The most important thing to know

BELSOMRA may cause serious side effects including: Decreased awareness and alertness. The morning after you take BELSOMRA, your ability to drive safely and think clearly may be decreased. You may also have sleepiness during the day.

How to take it

Take BELSOMRA exactly as your doctor tells you to take it. Only take BELSOMRA 1 time each night, if needed, within 30 minutes of going to bed. Only take BELSOMRA when you can get a full night's sleep (at least 7 hours). Do not take BELSOMRA if you drank alcohol that evening or before bed. BELSOMRA may be taken with or without a meal.

However, BELSOMRA may take longer to work if you take it with or right after meals. Call your doctor if your insomnia (sleep problem) worsens or is not better within 7 to 10 days. This may mean that there is another condition causing your sleep problem. If you take too much BELSOMRA, call your doctor right away or get emergency treatment.

Side effects, and when to stop

" for more information about side effects. What is BELSOMRA? BELSOMRA is a prescription medicine for adults who have trouble falling or staying asleep (insomnia). It is not known if BELSOMRA is safe and effective in children under the age of 18. BELSOMRA is a federally controlled substance (C-IV) because it can be abused or cause dependence.

Keep BELSOMRA in a safe place to prevent misuse and abuse. Selling or giving away BELSOMRA may harm others and is against the law. Tell your doctor if you have ever abused or have been dependent on alcohol, prescription medicines or street drugs. Who should not take BELSOMRA? Do not take BELSOMRA if you fall asleep often at unexpected times (narcolepsy).

Who should not take it

Do not take more BELSOMRA than prescribed. Do not take BELSOMRA unless you are able to stay in bed a full night (at least 7 hours) before you must be active again. Take BELSOMRA within 30 minutes of going to bed. See "

What to say before you start

Before taking BELSOMRA, tell your doctor about all of your medical conditions, including if you: have a history of depression, mental illness, or suicidal thoughts have a history of drug or alcohol abuse or addiction have a history of a sudden onset of muscle weakness (cataplexy) have a history of falling asleep often at unexpected times (narcolepsy) or daytime sleepiness have lung problems or breathing problems have liver problems are pregnant or plan to become pregnant.

It is not known if BELSOMRA can harm your unborn baby. Talk to your healthcare provider about the risk to your unborn baby if you take BELSOMRA during pregnancy. are breastfeeding or plan to breastfeed. BELSOMRA passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby during treatment with BELSOMRA.

Tell your doctor about all the medicines you take, including prescription or over-the-counter medicines, vitamins, or herbal supplements. Medicines can interact with each other, sometimes causing serious side effects. Do not take BELSOMRA with other medicines that can make you sleepy unless your doctor tells you to. Know the medicines you take.

Keep a list of your medicines with you to show your doctor and pharmacist each time you get a new medicine.

What to avoid

Do not drink alcohol while taking BELSOMRA. It can increase your chances of getting serious side effects. Do not drive, operate heavy machinery, do anything dangerous or do other activities that require clear thinking after taking BELSOMRA. You may still feel drowsy the next day after taking BELSOMRA. Do not drive or do other dangerous activities until you feel fully awake.

What are the possible side effects of BELSOMRA? BELSOMRA may cause serious side effects including: worsening depression and suicidal thoughts have happened during treatment with BELSOMRA. Call your healthcare provider right away if you have any worsening depression or thoughts of suicide or dying. complex sleep behaviors such as sleep-walking, sleep-driving, preparing and eating food, making phone calls, having sex or doing other activities while not fully awake that you may not remember the next morning.

Call your healthcare provider right away if you experience a complex sleep behavior. temporary inability to move or talk (sleep paralysis) for up to several minutes while you are going to sleep or waking up. temporary weakness in your legs that can happen during the day or at night. The most common side effects of BELSOMRA include drowsiness the next day after you take BELSOMRA.

The following additional side effects have been reported with BELSOMRA: abnormal dreams. These are not all the possible side effects of BELSOMRA. For more information, ask your doctor or pharmacist. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Storing it

Store BELSOMRA at room temperature between 68°F to 77°F (20°C to 25°C). Store in the original package until use, to protect from light and moisture. Keep BELSOMRA and all medicines out of reach of children.

Cite this page

NLM

sofidex [Internet]. Daloreum; c2026. Suvorexant; [reviewed 2026 Aug 2; cited 2026 Nov 10]. Available from: https://sofidex.com/patients/medicines/suvorexant

APA 7th

sofidex. (2026, August 2). Suvorexant. Daloreum. Retrieved November 10, 2026, from https://sofidex.com/patients/medicines/suvorexant

AMA 11th

Suvorexant. sofidex. Reviewed August 2, 2026. Accessed November 10, 2026. https://sofidex.com/patients/medicines/suvorexant

The cited date is today’s, because a citation records when you read the page. The reviewed date is when a clinician last checked it.