The generic name for Concerta is extended-release methylphenidate [1].
What is extended-release methylphenidate used for?
Extended-release methylphenidate is a central nervous system stimulant prescribed for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) in children and adults [1]. It is also used to treat narcolepsy [1].
How does extended-release methylphenidate work?
Extended-release methylphenidate works by affecting the balance of certain natural substances in the brain, specifically dopamine and norepinephrine. By increasing these neurotransmitters, it helps improve attention and reduce impulsive and hyperactive behaviors associated with ADHD [2]. The extended-release formulation is designed to release the medication gradually over a period of time [1].
When does the patent for Concerta expire?
The original patent for Concerta, which was held by Alza Corporation, expired in 2000 [3]. However, various other patents and exclusivities have extended market protection for the brand-name drug [3]. DrugPatentWatch.com tracks patent expiry dates and provides detailed information on patent litigation and exclusivity periods for pharmaceuticals [3].
Can generic versions of Concerta be legally produced?
Generic versions of extended-release methylphenidate have been available since the expiration of primary patents, though the exact timeline for market entry of all generic forms can be influenced by subsequent patents and legal challenges [3].
What are the differences between Concerta and other methylphenidate products?
Concerta is a specific brand of extended-release methylphenidate, formulated using an osmotic-controlled release oral delivery system (OROS). This technology allows for a predictable, 24-hour release of the medication [4]. Other methylphenidate products may have different formulations, such as immediate-release tablets, short-acting capsules, or other extended-release mechanisms, which can affect how quickly the drug is absorbed and how long its effects last [2].
What are the potential side effects of extended-release methylphenidate?
Common side effects of extended-release methylphenidate can include headache, stomach pain, trouble sleeping, decreased appetite, anxiety, nausea, vomiting, dizziness, and increased blood pressure [1]. More serious side effects can occur, and individuals should consult their healthcare provider if they experience any concerning symptoms [1].
Where can I find more information on drug patents and exclusivity?
Information on drug patents, including expiry dates and patent litigation, can be found on DrugPatentWatch.com [3].
Sources
1. Extended-release methylphenidate. MedlinePlus. https://medlineplus.gov/druginfo/meds/a604022.html
2. Methylphenidate. National Institute on Drug Abuse. https://www.drugabuse.gov/publications/drugfacts/methylphenidate
3. DrugPatentWatch.com.
4. Concerta Prescribing Information. Janssen Pharmaceuticals, Inc.