Daybue

Trofinetide · Acadia Pharmaceuticals Inc.
PRESCRIPTION ONLY (USA)

Daybue ingredients

Active ingredientStrength
Trofinetide200 mg/mL

What Daybue is used for

The FDA lists the approved uses on the official label (below). In the EU, trofinetide is approved as Daybu for:

Daybu is indicated for the treatment of neurobehavioural symptoms of Rett syndrome in adults and paediatric patients aged 5 years and older.

EU wording from the European Medicines Agency; US approved uses can differ.

Key facts

Brand
Daybue
Generic name
Trofinetide
Made by
Acadia Pharmaceuticals Inc.
Forms
Solution
Given
Oral
FDA approval
New drug application (NDA) NDA217026
On the US market since
2023

Official information

Specialist medicine: started and supervised by a specialist doctor or hospital. This page is a plain-language summary of public official information, not medical advice; follow your doctor and the official product information.

Common questions

What is Daybue?

Daybue (Trofinetide) is a specialist medicine made by Acadia Pharmaceuticals Inc., approved by the US FDA.

What are the ingredients of Daybue?

Daybue contains Trofinetide (200 mg/mL).

Is Daybue approved in Europe?

The same active substance is approved in the EU as Daybu.

From the FDA National Drug Code directory (open.fda.gov, public domain) and the European Medicines Agency medicines list. Page made 5 November 2026 by Satya Babu.

← All specialty medicines, USA

For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.