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Lumryz is a prescription medication approved by the U.S. Food and Drug Administration (FDA) to treat cataplexy or excessive daytime sleepiness in adults with narcolepsy. Lumryz is also referred to by its drug name, sodium oxybate. Lumryz is the sodium salt of gamma-hydroxybutyrate.

Lumryz is a central nervous system (brain and spinal cord) depressant. Its exact mechanism of action is unknown. However, it’s theorized that the medication improves cataplexy and excessive daytime sleepiness in people with narcolepsy by interacting with a receptor called GABAB on nerve cells.

How do I take it?
Prescribing information states that Lumryz is administered by mixing a packet of white granules in water. This oral suspension is taken by mouth at bedtime, two hours after eating and just before lying down.

Side effects
The FDA-approved label for Lumryz lists common side effects including nausea, vomiting, dizziness, headache, and enuresis (involuntary urination).

Lumryz carries an FDA warning label for central nervous system depression and abuse and misuse. The warning states that Lumryz is available only through a restricted program called the Lumryz REMS.

For more details about this treatment, visit:

Lumryz — Avadel

Sodium Oxybate — MedlinePlus

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