Suvorexant

About Suvorexant

Suvorexant blocks the receptors for orexins, brain chemicals that promote wakefulness. The label covers insomnia marked by trouble falling asleep, staying asleep or both. The usual dose is 10 mg, no more than once a night, within 30 minutes of going to bed and with at least 7 hours left before the planned time to wake; if 10 mg is well tolerated but not effective, it can be raised to 20 mg, the maximum. Taking it with or soon after a meal may delay its effect. Blood levels run higher in women and in people with obesity, and the label asks prescribers to weigh the added risk, particularly in women with obesity, before raising the dose; it is not recommended in severe liver impairment, and its safety and effectiveness in children have not been established.

There is no boxed warning. It can impair next-day alertness and driving even when used as prescribed, so people taking 20 mg are cautioned against driving the next day, and alcohol and other sedatives add to the effect. Sleep paralysis and hallucinations when falling asleep or waking can occur, as can symptoms resembling mild cataplexy, whose risk rises with the dose; complex sleep behaviors such as sleep-walking and sleep-driving mean stopping it at once; and in studies suicidal thoughts rose with the dose, so new or worsening depression must be reported. Sleepiness is the most common side effect, drowsiness raises the risk of falls in older adults, it has not been studied in severe sleep apnea or severe COPD, and it must not be taken by anyone with narcolepsy.

As a Schedule IV drug, a prescription can carry up to five refills within six months of the date written, and refill information can be transferred between pharmacies only once unless they share a real-time online database. In August 2026 the DEA proposed moving suvorexant, lemborexant and daridorexant to Schedule V; until a final rule takes effect, the Schedule IV rules apply. Studies found no evidence of physical dependence and no withdrawal symptoms on stopping. The tablets come in blister packs of 30 and stay in the original package until use, to protect them from light and moisture.

Taking Suvorexant

How to take it

No more than once a night, within 30 minutes of going to bed, and only if you can stay in bed for at least 7 hours. It works faster on an empty stomach. Do not drive or do other dangerous activities until you feel fully awake.

If you miss a dose

It is usually taken as needed. MedlinePlus says you may take it later than usual as long as you can still stay in bed for at least 7 hours; never take more than one dose a night.

Storage

In the original package until use, to protect from light and moisture, at room temperature (not in the bathroom) and out of reach of children. Keep track of how many tablets are left, and use a take-back program for unused tablets.

Interactions to know about

Avoid alcohol. Strong CYP3A inhibitors such as ketoconazole, itraconazole, clarithromycin and ritonavir are not recommended with it; moderate ones such as diltiazem, erythromycin, fluconazole, verapamil and grapefruit juice bring the dose to 5 mg, generally no more than 10 mg. Rifampin, carbamazepine and phenytoin can make it less effective, and digoxin levels are monitored.

This summarizes the official prescribing information. Your prescriber’s and pharmacist’s instructions, and the leaflet that comes with your medicine, take priority.

Why the cash price for Suvorexant differs from pharmacy to pharmacy

With no generic competition, every quote is for the Belsomra brand, and differences come from what each pharmacy pays and the markup it adds. A pharmacy that rarely fills it may not keep every strength and may need to order yours.

Schedule IV rules limit a prescription to five refills within six months and allow refill information to be transferred only once unless the pharmacies share a real-time database, so it is worth choosing the pharmacy before the first fill.

Ways to pay less for Suvorexant without insurance

• Ask the maker whether its savings or patient assistance program applies to someone paying cash; many copay offers require commercial insurance.
• Compare quotes from more than one pharmacy, since brand markups differ.
• Check that your dose is written as one tablet of the right strength rather than two smaller tablets.
• If the brand price is a barrier, ask the prescriber whether a generic sleep medicine such as eszopiclone, zolpidem or ramelteon would suit you.
• Upload the prescription to Script Unlock so licensed pharmacies can quote their cash price. You pay the pharmacy directly.

Questions to ask your pharmacist about Suvorexant

1. 1.Can I drive the morning after taking my dose?
2. 2.Does my dose need to change for diltiazem, verapamil, fluconazole, erythromycin or another medicine I take?
3. 3.What should I do if I wake unable to move or see things that are not there?
4. 4.Should I keep the tablets in the blister pack until I take them?

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