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Treatment Expectations

What to expect with HETLIOZ® (tasimelteon)

Everyone is different, and our circadian rhythms are different, too. Because the length of the daily cycle varies from person to person, some people may take longer to notice improvements from HETLIOZ® than others.

Depending on how far out of sync you are with the 24-hour sleep-wake cycle when you begin therapy, you may need to be on HETLIOZ® for weeks or months before you begin to experience its benefits.

Study participants did not experience symptoms of withdrawal or dependence when they stopped taking HETLIOZ®.

It's always a good idea to talk with your doctor about the possible side effects of any medication, including HETLIOZ®. The most common side effects associated with HETLIOZ® include headache, elevated liver enzymes (also known as ALT), nightmares or abnormal dreams, and upper respiratory or urinary tract infection. These side effects may occur more frequently in patients 65 years of age or older.

Here's Important Safety Information for
HETLIOZ® (tasimelteon).

Indications

HETLIOZ® (HeT-lee-ōz) [tasimelteon] capsules are indicated for the treatment of:

  • Non-24-Hour Sleep-Wake Disorder (Non-24) in adults
  • Nighttime sleep disturbances in Smith-Magenis Syndrome (SMS) patients 16 years of age and older.

HETLIOZ LQ® (HeT-lee-oz el-Cue) oral suspension is indicated for:

  • Nighttime sleep disturbances in SMS in pediatric patients 3 to 15 years of age.

Important Safety Information

HETLIOZ® may cause drowsiness. After taking HETLIOZ®, limit your activity to preparing for bed. HETLIOZ® can potentially impair your ability to perform activities that require complete mental alertness.

The most common side effects associated with HETLIOZ® include headache, elevated liver enzymes (ALT), nightmares or abnormal dreams, and upper respiratory or urinary tract infection. These side effects may occur more frequently in patients 65 years of age or older. Adverse reactions were similar in patients treated for (Non-24) and patients with SMS treated for nighttime sleep disturbances. Adverse reactions were also similar in pediatric patients (3 years to 15 years) who received HETLIOZ LQ® oral suspension, and patients ≥16 years of age who received HETLIOZ® capsules.

Tell your healthcare provider about all of the medicines you're taking. HETLIOZ® should not be taken in combination with fluvoxamine or rifampin.

Tell your healthcare provider about all of your health conditions, including whether you are pregnant, are planning to become pregnant, or are breastfeeding. HETLIOZ® has not been studied in pregnant women.

The safety and effectiveness of HETLIOZ® for the treatment of Non-24-Hour in children have not been established. The safety and effectiveness of HETLIOZ LQ® oral suspension for the treatment of nighttime sleep disturbances in SMS have been established in pediatric patients 3 years and older.

HETLIOZ® is not recommended for use in patients with severe liver problems.

Consumer Important Safety Information

You are encouraged to report side effects of prescription drugs to the FDA. To report side effects, contact Vanda Pharmaceuticals Inc. at 1-844-438-5469 or www.hetlioz.com or FDA at 1-800-FDA-0178 or www.fda.gov/medwatch.

For more information, ask your healthcare provider or call 1-844-HETLIOZ (1-844-438-5469).

This information does not take the place of talking with your healthcare provider for medical advice about your condition or treatment.

Download an accessible PDF or listen to the full US Prescribing Information. You can also hear the full US Prescribing Information by calling 1-844-HETLIOZ (1-844-438-5469).