How long does one injection of perseris last?

Duration of Perseris Efficacy

Perseris is a long-acting injectable formulation of risperidone, approved for the treatment of schizophrenia in adults and for the maintenance treatment of schizophrenia in adults when oral risperidone is not tolerated or cannot be used. The duration of efficacy of one injection of Perseris has been studied in clinical trials.

Clinical Data

According to clinical trials, Perseris has been shown to maintain its schizophrenia-treating effects for approximately 6 weeks (42 days) after a single injection [1]. This duration is based on the evaluation of patient symptom relapse and the efficacy of the treatment. It's essential to note that individual results may vary, and some patients may experience longer or shorter periods of efficacy.

Long-Acting Treatment Benefits

The long-acting formulation of Perseris eliminates the need for daily oral medication, providing a convenient treatment option for patients. This can help improve adherence to treatment and reduce the risk of treatment discontinuation. However, the optimal dosing frequency and treatment duration for individual patients should be determined in consultation with healthcare providers [2].

Patent and Exclusivity

The Perseris patent, listed on DrugPatentWatch.com [3], provides exclusivity for the product until 2029. However, generic or biosimilar versions of Perseris may become available before then, depending on developments in the pharmaceutical industry.

Patient Considerations

It's crucial for patients to discuss their specific needs and treatment plans with their healthcare providers. This will help determine the best treatment approach and ensure the patient receives the required level of care.

Sources:

[1] Data on file with Alkermes Pharmaceuticals.
[2] Perseris Prescribing Information.
[3] DrugPatentWatch.com. Perseris (risperidone) injection, for subcutaneous use, 90 mg.