Question 1

What is Xywav?

Accepted Answer

Xywav is a prescription medication that acts as a central nervous system depressant. It contains a mixture of oxybate salts, including calcium, magnesium, potassium, and sodium oxybates.

This therapy is designed to help manage symptoms associated with certain sleep conditions. It is formulated with significantly less sodium than other oxybate-based therapies to reduce overall salt intake.

Question 2

What is Xywav used for?

Accepted Answer

Xywav is used to treat:

Cataplexy in narcolepsy

Excessive daytime sleepiness in narcolepsy

Idiopathic hypersomnia

Question 3

How does Xywav work?

Accepted Answer

Mechanism of Action

Xywav is a central nervous system depressant. While the exact way it works to treat narcolepsy and idiopathic hypersomnia is not fully understood, it is believed to produce its effects by interacting with certain receptors in the brain.

Interaction with GABA Receptors

The active ingredient in Xywav is oxybate. Scientists believe that oxybate works by binding to GABA-B receptors on neurons in the brain. GABA is a naturally occurring chemical messenger (neurotransmitter) that helps regulate nerve activity and promotes relaxation and sleep.

Effects on Sleep

By acting on these receptors, Xywav is thought to help improve the overall quality and structure of sleep. Its primary effects include:

Improving nighttime sleep: It helps consolidate sleep and may increase the amount of deep sleep a person gets during the night.

Reducing daytime symptoms: By improving the quality of sleep at night, the medication helps reduce excessive daytime sleepiness and the frequency of cataplexy (sudden muscle weakness) in people with narcolepsy.

Because Xywav is a potent depressant, it significantly slows down brain activity. This is why it is taken at night and why it is important to be in bed immediately after taking a dose.

Question 4

What are the active ingredients in Xywav?

Accepted Answer

The active ingredient in Xywav is oxybate .

Question 5

What are the side effects of Xywav?

Accepted Answer

Common side effects of Xywav may include:

Nausea

Dizziness

Headache

and others.

Always consult with a healthcare professional about potential side effects.

Question 6

What drug class is Xywav?

Accepted Answer

Xywav belongs to the central nervous system depressant drug class.

Question 7

What is the dosage of Xywav and how do I take it?

Accepted Answer

How to Prepare and Take Xywav

Xywav is a liquid solution that must be diluted with water before it is swallowed. Use the containers provided by the pharmacy to prepare your doses. Once mixed with water, the medication should be used within a specific timeframe as directed by your healthcare provider.

Timing and Food

This medication should be taken on an empty stomach. It is recommended to wait at least two hours after eating before taking your first dose. Taking Xywav with food may change how the medicine works in your body.

Dosing Schedule

The schedule for taking Xywav depends on the condition being treated:

Twice-nightly dosing: The first dose is taken at bedtime while sitting in bed. The second dose is taken several hours later. You may need to set an alarm to wake up for the second dose.

Once-nightly dosing: In some cases, the medication is taken as a single dose at bedtime.

Because Xywav can cause you to fall asleep very quickly, you should be in bed and ready for sleep before taking your dose. You should remain in bed after taking the medication.

Missed Dose

If you miss a dose of Xywav, skip the missed dose and resume your regular schedule the following night. Do not take more than one dose at a time or try to make up for a missed dose.

Question 8

Is Xywav safe during pregnancy and breastfeeding?

Accepted Answer

Pregnancy

There are no adequate and well-controlled studies of Xywav in pregnant women. It is currently unknown whether the medication can cause fetal harm or affect reproductive capacity. In animal studies where high doses of oxybate were administered, researchers observed increased stillbirths and decreased pup survival and body weight. Xywav should be used during pregnancy only if the potential benefit clearly outweighs the potential risk to the fetus.

Breastfeeding

The active ingredient in Xywav is excreted in human milk. Because the medication is a central nervous system depressant, there is a concern that it could cause serious side effects in a nursing infant, such as:

Excessive sleepiness

Slow or shallow breathing

Decreased muscle tone

Healthcare providers typically recommend monitoring the infant closely for these signs if a mother continues to take Xywav while breastfeeding. Some patients may choose to discontinue nursing or the medication after consulting with their doctor.

Clinical Considerations

If you are pregnant, planning to become pregnant, or breastfeeding, it is essential to talk to your healthcare provider. They can help evaluate the risks of the medication versus the risks of leaving symptoms of narcolepsy or idiopathic hypersomnia untreated during this time.

Question 9

What forms and strengths does Xywav come in?

Accepted Answer

Xywav is supplied as a clear to slightly opalescent oral solution. This liquid medication is intended to be diluted with water before it is swallowed.

Question 10

What is the FDA approval status of Xywav?

Accepted Answer

FDA Approval and Indications

Xywav (calcium, magnesium, potassium, and sodium oxybates) is approved by the U.S. Food and Drug Administration (FDA) for the treatment of cataplexy or excessive daytime sleepiness (EDS) in patients 7 years of age and older with narcolepsy. It is also approved for the treatment of idiopathic hypersomnia (IH) in adults.

Boxed Warning

Xywav carries a Boxed Warning, the FDA's most serious type of warning, regarding the following risks:

Central Nervous System (CNS) Depression: Xywav can cause severe breathing problems and a decrease in consciousness, even at recommended doses.

Abuse and Misuse: The active ingredient in Xywav is a form of gamma-hydroxybutyrate (GHB), which is associated with serious adverse reactions including seizures, respiratory depression, and death.

REMS Program and Distribution

Because of these risks, Xywav is only available through a restricted distribution program called the XYWAV and XYREM REMS. Under this program:

Prescribers must be certified in the program.

The medication is only dispensed by a central pharmacy that is certified in the program.

Patients must be enrolled in the program and educated on the risks of the medication.

Controlled Substance Status

Xywav is classified as a Schedule III controlled substance. However, because it contains GHB, the penalties for illegal use, possession, or distribution are those associated with Schedule I substances.

Safety Communications

The FDA has issued safety communications warning that Xywav must not be taken with alcohol or other CNS depressant medications, as this combination significantly increases the risk of profound sedation, respiratory depression, and death.

Question 11

What should I know about Xywav and cost?

Accepted Answer

Specialty Pharmacy Distribution

Xywav is not available at standard retail pharmacies. It is distributed exclusively through a central specialty pharmacy as part of a restricted program called the XYWAV and XYREM REMS. This program is required by the FDA to ensure the medication is used safely. The specialty pharmacy coordinates the delivery of the medication and works with patients to manage the billing and insurance process.

Insurance and Prior Authorization

Most insurance plans, including private insurance and government programs like Medicare, may cover Xywav. However, insurance providers often require a prior authorization process. This means a healthcare provider must submit documentation to the insurance company to confirm that the medication is medically necessary before coverage is approved. The final out-of-pocket cost depends on the specific terms of the patient's insurance plan, such as deductibles and copayment tiers.

Financial Assistance Options

Several options may be available to help reduce the cost of Xywav:

Copay Savings Programs: Eligible patients with commercial (private) insurance may be able to use a copay savings card to lower their monthly out-of-pocket expenses.

Patient Assistance Programs: For individuals who are uninsured or meet specific financial criteria, the manufacturer may offer programs that provide the medication at a reduced cost or for free.

Patients are encouraged to speak with the specialty pharmacy or a benefits coordinator to obtain specific pricing information and explore available support options.

Xywav

Medication Quick Facts

📋Overview

What It's Used For

How It Works

Side Effects

Warnings & Precautions

Dosage & How to Take

Pregnancy & Breastfeeding

Forms & Strengths

FDA / Regulatory Status

Price Information

FAQ

Found an Error?