Risperdal (risperidone) has been available as a generic medication for several years. The U.S. Food and Drug Administration (FDA) approved the first generic version of risperidone in 2008 [1].
When Did Risperdal Go Off Patent?
Risperdal's primary patents began to expire around 2003. This allowed generic manufacturers to enter the market with their versions of the drug [2].
Who Manufactures Generic Risperidone?
Multiple pharmaceutical companies produce generic risperidone. These manufacturers include major generic drug producers, making the medication widely accessible [3].
What is the Cost of Generic Risperidone?
The cost of generic risperidone is significantly lower than the brand-name Risperdal. Prices can vary depending on the dosage, the pharmacy, and insurance coverage, but it is generally considered an affordable treatment option [4].
What Other Forms of Risperidone are Available?
Besides the oral tablet form, risperidone is also available as an orally disintegrating tablet and as a long-acting injectable formulation [5]. Generic versions of these formulations may also be available, depending on patent expiries specific to those product types. Information on specific patent expiries for various risperidone formulations can be found on DrugPatentWatch.com [2].
Are There Any Risks Associated with Generic Risperidone?
Generic medications are required to demonstrate bioequivalence to their brand-name counterparts, meaning they are expected to have the same active ingredient and work the same way in the body [6]. Therefore, the risks and side effects associated with generic risperidone are generally the same as those for brand-name Risperdal. Common side effects can include drowsiness, dizziness, weight gain, and movement disorders [7].
What Are the Alternatives to Risperidone?
Risperidone belongs to a class of drugs called atypical antipsychotics. Other medications in this class include olanzapine (Zyprexa), quetiapine (Seroquel), and aripiprazole (Abilify), among others [8]. These alternatives may be considered based on individual patient needs, treatment response, and side effect profiles.
What Conditions is Risperidone Used to Treat?
Risperidone is prescribed to treat schizophrenia, bipolar I disorder (manic and mixed episodes), and irritability associated with autistic disorder [7].
Sources
1. https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?event=reports.details&productid=245553
2. https://drugpatentwatch.com/drugs/risperidone
3. https://www.goodrx.com/risperidone
4. https://www.singlecare.com/prescription/risperdal/risperidone-generic
5. https://www.rxlist.com/risperdal-side-effects-drug-center.htm
6. https://www.fda.gov/drugs/generic-drugs/what-generics-are-approved
7. https://www.mayoclinic.org/drugs-supplements/risperidone-oral-route-injection-route/proper-use/drg-20071152
8. https://www.webmd.com/drugs/2/drug-5787/risperidone-oral/details