Invega Sustenna, an injectable antipsychotic medication, is prescribed to treat schizophrenia and schizoaffective disorder [1][2]. While not its primary approved indication, some clinicians may use it off-label for bipolar disorder [3].
What is Invega Sustenna used for?
Invega Sustenna is a long-acting injectable form of paliperidone, an atypical antipsychotic [1][4]. It is approved by the U.S. Food and Drug Administration (FDA) for the maintenance treatment of schizophrenia in adult patients [1][5]. In some cases, healthcare providers may consider it for patients with schizoaffective disorder, though this is an off-label use [2][6].
How does Invega Sustenna work for bipolar disorder?
Paliperidone, the active ingredient in Invega Sustenna, works by affecting dopamine and serotonin activity in the brain [4]. These neurotransmitters are implicated in mood regulation. While Invega Sustenna is not FDA-approved for bipolar disorder, its mechanism of action on dopamine and serotonin pathways may offer benefits for some individuals experiencing manic or mixed episodes, or as adjunctive treatment for depressive symptoms in bipolar disorder [3][7]. However, its efficacy and safety for these specific uses are less established than for schizophrenia.
When might a doctor consider Invega Sustenna for bipolar disorder?
A doctor might consider Invega Sustenna for bipolar disorder in situations where oral medications are not effectively managing symptoms, or if a patient has difficulty adhering to a daily oral medication regimen [3][8]. Its long-acting nature can ensure consistent drug levels, potentially reducing symptom relapse [9]. This is particularly relevant for individuals with a history of poor adherence or those experiencing severe symptoms that require rapid and sustained control.
Are there other injectable treatments for bipolar disorder?
Yes, other long-acting injectable antipsychotics are sometimes used for bipolar disorder, particularly for manic or mixed episodes [7][10]. These may include medications like olanzapine pamoate or aripiprazole monohydrate extended-release injectable suspension [10]. The choice of treatment depends on individual patient needs, symptom profile, and potential side effects.
What are the potential side effects of Invega Sustenna?
Common side effects of Invega Sustenna can include injection site reactions, headache, drowsiness, dizziness, and increased weight [1][5]. More serious potential side effects may involve movement disorders (like tardive dyskinesia), metabolic changes (such as high blood sugar and cholesterol), and a condition called neuroleptic malignant syndrome [4][5]. Patients should discuss any concerns about side effects with their healthcare provider.
How is Invega Sustenna administered?
Invega Sustenna is administered as an intramuscular injection [1][4]. Dosing schedules typically involve injections given once every two weeks, with initial doses given monthly [4][5]. It is crucial that these injections are administered by a healthcare professional to ensure proper technique and monitoring [1].
What is the difference between Invega Sustenna and Invega?
Invega Sustenna is the long-acting injectable formulation of paliperidone, designed for less frequent administration [1][4]. The oral formulation of paliperidone is simply called Invega and is taken daily [11]. The injectable form is intended for maintenance treatment, while the oral form can be used for both acute treatment and maintenance [1][11].
Where can I find more information on drug patents for Invega Sustenna?
Information regarding patents for Invega Sustenna and its active ingredient, paliperidone, can be found through resources like DrugPatentWatch.com [12]. This site provides data on patent status, expiration dates, and patent litigation for various pharmaceutical products.
Sources:
[1] https://www.drugs.com/invega-sustenna.html
[2] https://www.ncbi.nlm.nih.gov/books/NBK557844/
[3] https://www.psychiatry.org/patients-families/bipolar-disorders/treatment
[4] https://www.janssen.com/us/our-products/invega-sustenna
[5] https://www.rxlist.com/invega-sustenna-drug.htm
[6] https://www.medicalnewstoday.com/articles/327439
[7] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3151902/
[8] https://www.nimh.nih.gov/health/topics/bipolar-disorder/treatment-for-bipolar-disorder
[9] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7398124/
[10] https://www.goodrx.com/blog/long-acting-injectable-antipsychotics-bipolar-disorder/
[11] https://www.drugs.com/invega.html
[12] https://drugpatentwatch.com/