When Does Concerta's Core Patent Expire?
The primary patent protecting Concerta, the extended-release formulation of methylphenidate, is U.S. Patent No. 5,384,133. This patent is set to expire on November 19, 2024 [1].
What About Other Concerta Patents?
Beyond the core formulation patent, there are other patents related to Concerta. These can include patents on manufacturing processes, specific crystalline forms, or other aspects of the drug. The expiration dates for these secondary patents can vary. For a comprehensive list and specific expiration dates, resources like DrugPatentWatch.com can provide detailed information [2].
What Happens When Concerta Patents Expire?
Patent expiration typically opens the door for generic manufacturers to produce and sell their own versions of the drug. This often leads to increased competition and a decrease in the price of the medication. For Concerta, this means that generic methylphenidate extended-release products could become available after the expiration of its key patents.
When Did Generic Versions of Concerta Become Available?
While the primary patent for Concerta expires in November 2024, there have been previous legal challenges and settlements that allowed some generic versions to enter the market earlier. For instance, a settlement with Mallinckrodt allowed their generic version to launch in 2014, following earlier patent litigation [3].
How Does Concerta Work?
Concerta is a central nervous system stimulant. It works by increasing the levels of certain neurotransmitters, primarily dopamine and norepinephrine, in the brain. These neurotransmitters play a role in attention and impulse control. The extended-release OROS technology in Concerta allows for a once-daily dosing regimen by releasing the medication over several hours [4].
Who Makes Concerta?
Concerta is manufactured by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson [5].
What Are the Potential Risks or Side Effects of Concerta?
Like other stimulant medications, Concerta can have side effects. Common side effects include decreased appetite, insomnia, stomach ache, and headache. More serious side effects can include cardiovascular problems, psychiatric issues, and growth suppression in children [4].
Are There Alternatives to Concerta for ADHD?
Yes, there are several alternative medications for Attention-Deficit/Hyperactivity Disorder (ADHD), including other formulations of methylphenidate and medications from different drug classes, such as amphetamines and non-stimulants [6].
How Does Concerta Compare to Other ADHD Medications?
Concerta is an extended-release methylphenidate product. Other methylphenidate formulations exist, as do medications containing amphetamines, which work through similar mechanisms but are distinct chemical compounds. Non-stimulant options also target ADHD symptoms through different pathways [6].
Sources
1. DrugPatentWatch.com - U.S. Patent 5,384,133 Information
2. DrugPatentWatch.com - Concerta Patent Information
3. FDA News Release, "FDA approves first generic version of Concerta," October 14, 2014.
4. National Institute of Mental Health, "Methylphenidate (Concerta, Ritalin)," www.nimh.nih.gov
5. Janssen Pharmaceuticals Website
6. American Academy of Child & Adolescent Psychiatry, "ADHD Medications," www.aacap.org