• Required field
  • Generic Name: (tasimelteon)
    Other Brands: N/A
  • Last Revised: 07/2015
    • What is this medication and its most common uses?

      Hetlioz is a medicine used to treat a sleep disorder called Non-24-Hour Sleep-Wake Disorder.

    • What should I know when beginning and continuing on this medication?

      How does this medication work?

      Hetlioz works similarly to a natural substance in the brain called melatonin, that is needed for sleep.

      What are the beneficial effects of this medication and when should I begin to have results?

      What: Hetlioz has been shown to be effective in improving nighttime total sleep duration and reducing daytime naps.

      When: It may take weeks or months before Hetlioz starts working. It is important that you take Hetlioz exactly as your healthcare provider has prescribed in order for you to get a beneficial effect from the medicine.

      How do I know it is working?

      If you are sleeping longer throughout the night and taking less daytime naps, Hetlioz is likely working effectively. Your healthcare provider may ask you questions from time to time to assess your sleep pattern.

    • What are the possible side effects of this medication?

      The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.

      More common side effects may include: headache, nightmares or unusual dreams, respiratory or urinary tract infection.

      Less common side effects may include:

      Drowsiness that may affect your ability to perform certain activities.

    • Who should not take this medication?

      Do not take Hetlioz if you are allergic to it or any of its ingredients.

    • What should I tell my healthcare provider before I take the first dose of this medication?

      Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Hetlioz. Also, talk to your healthcare provider about your complete medical history, especially if you have liver disease or you smoke.

    • What is the usual dosage?

      The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.

      Adults: The recommended dose is 20 milligrams before bedtime.

    • How should I take this medication?

      Take Hetlioz exactly as prescribed by your healthcare provider. Do not change your dose or stop taking Hetlioz without first talking to your healthcare provider.

      Take Hetlioz without food. Swallow the capsule whole.

      Take Hetlioz before bedtime, at the same time every night. If you cannot take Hetlioz at around the same time on a given night, skip the dose that night.

      Limit your activities to those necessary to prepare for bed after taking Hetlioz.

    • What should I avoid while taking this medication?

      Do not drink alcohol while you are taking Hetlioz.

      Do not engage in activities that require complete alertness until you know how Hetlioz affects you.

    • What are the possible food and drug interactions associated with this medication?

      If Hetlioz is taken with certain other drugs, the effects of either could be increased, decreased, or altered. Hetlioz may interact with numerous medications. Therefore, it is very important that you tell your healthcare provider about any other medications you are taking.

    • May I receive this medication if I am pregnant or breastfeeding?

      The effects of Hetlioz during pregnancy and breastfeeding are unknown. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

    • What should I do if I miss a dose of this medication?

      Hetlioz should be taken under special circumstances determined by your healthcare provider. If you miss your scheduled dose, contact your healthcare provider or pharmacist for advice.

    • How should I store this medication?

      Store at room temperature. Protect from light and moisture.

    • Who should I contact in case of emergency or overdose?
      back to top

      In the event of a medical emergency call your doctor or 9-1-1 immediately. In the event of overdose, call your doctor or poison control for further instructions.
      National Poison Control#: Call 1-800-222-1222

      This PDR+ drug information has been developed by the Physicians’ Desk Reference Network (PDRN), a source of medication information trusted by doctors for over 65 years.

      This monograph summarizes the most important information about your medication and does not cover all the information you may need. If you have any questions or concerns or want to learn more about your medication, ask your healthcare provider; he/she will be able to provide answers to your questions. This medication should only be used by the patient for whom it was prescribed and should not be shared with other people.
    • Additional patient resources.
      back to top Use your PDR® Pharmacy Discount Card when you or a family member fills a prescription and ask for your PDR® Discount every
  • Terms of Service

    This discount plan is NOT insurance or a Medicare prescription drug plan. The plan is not intended as a substitute for insurance and does not meet creditable coverage requirements under state or federal law. The plan provides discounts at participating pharmacies on certain pharmaceutical supplies, prescription drugs, or medical equipment and supplies. The range of discounts will vary depending on the products received. Members are obligated to pay the pharmacy the entire amount of the discounted rate for such products at the point of sale. The plan does not pay pharmacies for products provided to members. No enrollment or periodic fees apply. The pharmacy may pay the plan a fee from amounts the pharmacy collects from the member. The discount plan organization is ProCare Pharmacy Benefit Manager, Inc.,1267 Professional Parkway, ProCare Office Park, Gainesville, GA 30507, 1-888-299-5383. Customer service is provided by PDR, LLC., 5 Paragon Drive, Montvale, NJ, 07645, 1-800-232-7379, www.pdr.net/DiscountCard, customerservice@pdr.net.