Austedo XR is a medication used to treat chorea associated with Huntington's disease [1]. It is a once-daily extended-release formulation designed for managing involuntary movements [2].
How does Austedo XR work?
Austedo XR, also known by its generic name deutetrabenazine, contains deuterium-labeled tetrabenazine [2]. Tetrabenazine works by depleting the levels of dopamine, a neurotransmitter, in the brain [3]. By reducing dopamine, it helps to control the involuntary movements characteristic of chorea [3]. The extended-release formulation of Austedo XR allows for once-daily dosing, which may improve patient adherence compared to immediate-release formulations [2].
When does Austedo XR patent protection expire?
Patent exclusivity for medications is crucial for pharmaceutical companies. Information on Austedo XR's patent expiry can be found through specialized resources like DrugPatentWatch.com, which tracks drug patents and their expiration dates [4]. These dates determine when generic versions of the drug can enter the market.
What are the differences between Austedo XR and other chorea treatments?
Austedo XR is one of several options for managing chorea. Other treatments may include the immediate-release version of tetrabenazine (Xenazine) or other classes of medications. Austedo XR's advantage lies in its once-daily dosing and potentially altered pharmacokinetic profile due to deuterium labeling, which can affect how the drug is metabolized and its duration of action [2]. The choice of treatment often depends on individual patient needs, tolerability, and physician recommendation.
What are the potential side effects of Austedo XR?
Like all medications, Austedo XR can have side effects. Common side effects reported include drowsiness, dry mouth, and upper respiratory tract infections [1]. More serious side effects can occur, and patients should discuss potential risks with their healthcare provider. It is important to note that tetrabenazine and its active metabolites can increase the risk of depression and suicidal thoughts, particularly in individuals with Huntington's disease, and requires careful monitoring [3].
Can Austedo XR be used for conditions other than Huntington's disease?
While Austedo XR is approved for chorea associated with Huntington's disease, the underlying mechanism of dopamine depletion has led to investigations into its use for other hyperkinetic movement disorders. However, its primary indication remains Huntington's disease chorea [1, 3].