If your doctor has prescribed DAYBUE®, you and your child are ready to explore a new path forward with the first and only approved treatment for Rett syndrome
If you have questions when starting treatment, support is available through Acadia Connect® to help you along the way.
DAYBUE is an oral medication that is:
Taken twice daily, in the morning and evening

Strawberry flavored

Able to be taken with or without food
DAYBUE is not a cure for Rett syndrome. Individual results may vary.
The amount of DAYBUE given will be dependent on your child's weight. Your child's doctor will instruct you on the proper dose.
Continue reading for important information about giving DAYBUE.
Starting treatment with DAYBUE?

This guide can help you and your child prepare for and get the most out of treatment with DAYBUE.
Delivery and storage of DAYBUE
Your DAYBUE prescriptions can only be filled by a specialty pharmacy
We partner with AnovoRx, a specialty pharmacy, to process and fill prescriptions. Once AnovoRx finalizes your child’s prescription details, they will schedule delivery to the location most convenient for you. Acadia Connect will also reach out to you regularly to coordinate shipping refills.


What is a specialty pharmacy?
A specialty pharmacy is different from a retail pharmacy. It is a type of pharmacy that focuses on medications that have special handling, storage, and delivery requirements like DAYBUE.


Each month, shipments are delivered in a refrigerated box containing:
Six or eight bottles of DAYBUE, depending on your child’s weight-based dose
Two oral syringes and two Press-In Bottle Adapters (PIBA)
DAYBUE Packaging Materials Recycle Program
We are pleased to offer a recycling service to help you dispose of the DAYBUE packaging materials that come with your medicine. This program is a prepaid service sponsored by Acadia Pharmaceuticals Inc. There is no additional cost to you.
The recycling service is only available in the United States, excluding Alaska, Hawaii, and US territories.
AnovoRx Specialty Pharmacy
AnovoRx will process and fill DAYBUE prescriptions and have clinical pharmacists available 24/7, to:

Answer questions and offer treatment support for DAYBUE

Provide information about potential side effects

Offer clinical recommendations (when appropriate)
Questions about delivery?
Contact Acadia Connect for support at 1-844-737-2223, Monday to Friday, 8AM to 8PM ET.

Ellie, age 15, living with Rett syndrome
See what DAYBUE helped spark in Ellie
Learn more about Ellie’s experience with DAYBUE.
Ellie, age 15, living with Rett syndrome
How should I store DAYBUE?
Once you receive your shipment:

Store DAYBUE in a refrigerator at a temperature between 36°F and 46°F (2°C to 8°C)

Always store DAYBUE in an upright position
Do not freeze

Discard any unused DAYBUE after 14 days of opening the bottle

Keep the child-resistant cap tightly closed
Keep DAYBUE and all medicines out of the reach of children
Make sure to write down the date you open the bottle on the side label of your medication or another convenient location. DAYBUE must be used within 14 days of opening.
Track your child’s treatment journey each day

Use the DAYBUE Daily Treatment Journal to help you identify small changes that may impact daily life and help you and your care team stay informed.
Helpful tips for administration of DAYBUE
How should I give DAYBUE to my child?
When giving DAYBUE by mouth:

Use something cold to numb the tastebuds like ice cream, an ice cube, or cold water before giving DAYBUE
Dip your medication syringe in sweet syrup* and gently squirt DAYBUE into the side of your child’s cheek. Do not squirt into the back of the throat, as this could cause choking
Use play to help increase your child’s involvement in taking DAYBUE, like pretending to give medicine to a favorite toy
Give a strong-tasting food or drink afterwards to help remove the taste
When you are done, consider giving your child a reward, like playing a favorite game
*DAYBUE should not be mixed directly with any sweetener.
Helpful tips to consider for managing diarrhea
If you are accustomed to treating for constipation, managing diarrhea may be new to you. Diarrhea did occur in some individuals taking DAYBUE who previously experienced constipation.
Before your child starts treatment, talk to your doctor about a management plan to address the possible side effect of diarrhea while on treatment with DAYBUE.
Starting DAYBUE if diarrhea is a concern:
Based on your doctor’s clinical judgement and experience, they may decide to start with a lower dose and increase to the FDA-recommended weight-based dose over time
Improvements may not occur until your child reaches the recommended dose and continues treatment
The impact of this approach on diarrhea was not studied in LAVENDER™. Individual patient response may vary
The LAVENDER study findings were based on starting patients at the FDA-recommended weight-based dose of DAYBUE and continuing treatment for 12 weeks.
Take steps to plan ahead
This might include stocking up on supplies like wipes, chucks, and extra diapers, or creating a backup bag with a change of clothes for when you’re away from home.
Helpful tip before treatment begins
Letting your child’s school or other members of the care team know about possible treatment effects is a great step to take before starting DAYBUE.


Tell your doctor about all of the medicines your child takes, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Taking DAYBUE with certain medicines may affect how the other medicines work and can cause serious side effects.
Clare, age 8, living with Rett syndrome
Frequently asked questions about starting DAYBUE treatment
How will I receive DAYBUE?
DAYBUE will be shipped directly to your home through AnovoRx, a specialty pharmacy. Each delivery will contain one month’s supply of your child’s prescription.
I need assistance with a delivery. Who should I contact?
Contact your Acadia Connect Nurse Care Coordinator for delivery support at 1-844-737-2223, Monday–Friday, 8:00
Overview brochure of Acadia Connect includes delivery, support offerings, and resources. Download now
How should DAYBUE be stored?
Store DAYBUE in a refrigerator at a temperature between 36°F to 46°F (2°C to 8°C). Always store DAYBUE in an upright position and do not freeze.
How often should I give DAYBUE to my child?
Give DAYBUE exactly as your doctor tells you. DAYBUE is taken twice daily, in the morning and evening. DAYBUE can be taken with or without food.
What if my child experiences diarrhea while on treatment?
If your child experiences diarrhea while taking DAYBUE, tell their doctor right away. Your child’s doctor may reduce or interrupt the dose until side effects improve.
For more information, please see helpful tips to consider for managing diarrhea
Support by your side
Acadia Connect is a patient and family support program that connects you and your family with educational support and resources throughout the DAYBUE treatment journey.
Call Acadia Connect at 1-844-737-2223, Monday to Friday, 8



