The Austedo (deutetrabenazine) package insert contains crucial information for healthcare professionals and patients.

Austedo Package Insert: Key Information and Safety Guidelines

The Austedo (deutetrabenazine) package insert contains crucial information for healthcare professionals and patients regarding the safe and effective use of this medication. Understanding the details within the official package insert is vital for anyone prescribed or considering Austedo. This article provides a comprehensive summary of the key information typically found in the Austedo package insert, covering its indications, important safety warnings, dosage, and potential side effects.

What is Austedo?

Austedo is a prescription medication used to treat two specific neurological conditions:

• Chorea associated with Huntington's disease


• Tardive dyskinesia

The active ingredient in Austedo is deutetrabenazine, which works by affecting certain chemicals in the brain that influence movement.

Important Safety Information: Boxed Warning

The Austedo package insert includes a Boxed Warning, highlighting serious potential risks:

Depression and Suicidality

Austedo can increase the risk of depression and suicidal thoughts or behavior in patients with Huntington's disease. Patients and caregivers should be vigilant for new or worsening depression, suicidal ideation, or unusual changes in mood or behavior, and report them immediately to a healthcare provider.

Indications and Usage

Austedo is approved for:

• Chorea Associated with Huntington's Disease: This refers to the involuntary, irregular, unpredictable movements that are a hallmark symptom of Huntington's disease.


• Tardive Dyskinesia: This condition involves involuntary, repetitive body movements, often of the face, mouth, tongue, or limbs, and can be a side effect of certain psychiatric medications.

Dosage and Administration

Austedo is typically taken orally, usually twice daily. The dosage is individualized based on the patient's condition, response to treatment, and tolerability. Treatment usually starts with a low dose and is gradually increased by the healthcare provider over several weeks until the desired effect is achieved or side effects become intolerable. It is crucial to follow the healthcare provider's instructions precisely and not to adjust the dose without consultation.

Contraindications

Austedo should not be used in patients who:

• Are taking reserpine, tetrabenazine, or valbenazine.


• Are taking monoamine oxidase inhibitors (MAOIs).


• Have hepatic impairment (liver problems).

Warnings and Precautions

Beyond the Boxed Warning, the Austedo package insert details several other important warnings and precautions:

Depression and Suicidality (Continued)

Patients should be carefully monitored for changes in mood, behavior, and suicidal ideation, especially during dose adjustments.

QT Prolongation

Austedo can prolong the QT interval, an electrical activity in the heart that could lead to a serious irregular heartbeat. It should be used with caution in patients at risk for QT prolongation.

Neuroleptic Malignant Syndrome (NMS)

A rare but potentially fatal condition characterized by high fever, muscle rigidity, altered mental status, and autonomic instability. Discontinuation of Austedo and supportive care are necessary if NMS is suspected.

Akathisia, Restlessness, and Agitation

These symptoms can occur or worsen with Austedo treatment. Dosage adjustments or discontinuation may be necessary.

Parkinsonism

Austedo can cause or worsen symptoms of parkinsonism, such as tremor, rigidity, and slowed movements.

Sedation and Somnolence

Drowsiness is a common side effect, which can impair a patient's ability to drive or operate machinery safely.

Other Important Warnings

These may include dysphagia (difficulty swallowing), hyperprolactinemia, and impacts on blood pressure.

Adverse Reactions (Side Effects)

Common side effects reported in clinical trials for Austedo include:

• Somnolence (drowsiness)


• Diarrhea


• Dry mouth


• Fatigue


• Insomnia


• Nausea


• Urinary tract infections


• Anxiety


• Weight gain

This is not an exhaustive list. Patients should discuss all potential side effects with their healthcare provider.

Drug Interactions

Austedo can interact with other medications, potentially altering its effectiveness or increasing the risk of side effects. Key interactions include:

• CYP2D6 Inhibitors: Strong inhibitors of this enzyme can increase Austedo levels, requiring dose adjustment.


• QT-prolonging drugs: Concurrent use can increase the risk of QT prolongation.


• Other centrally acting drugs: Caution is advised when used with other medications that affect the central nervous system.

Use in Specific Populations

Pregnancy

There is limited data on Austedo use in pregnant women. It should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

Lactation

It is unknown whether Austedo or its metabolites are excreted in human milk. The decision to breastfeed should consider the importance of the drug to the mother.

Pediatric Use

The safety and effectiveness of Austedo in pediatric patients have not been established.

Geriatric Use

No overall differences in safety or effectiveness were observed between elderly subjects and younger subjects, but greater sensitivity of some older individuals cannot be ruled out.

Hepatic Impairment

Austedo is contraindicated in patients with hepatic impairment due to increased exposure to the drug.

How to Store Austedo

Store Austedo at room temperature, 20°C to 25°C (68°F to 77°F), with excursions permitted to 15°C to 30°C (59°F to 86°F). Keep the bottle tightly closed and out of the reach of children.

Disclaimer: This article provides a summary of information commonly found in the Austedo package insert and is intended for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always refer to the official prescribing information provided by the manufacturer or consult with your healthcare provider for complete and up-to-date information about Austedo and your specific medical condition.