About generic Concerta Methylphenidate ER (Concerta, Relexxii) is an expensive drug used to treat attention-deficit hyperactivity disorder (ADHD). It is also used to treat narcolepsy. This drug is slightly more popular than comparable drugs. It is available in brand and generic versions. It belongs to a group of drugs called stimulants. Concerta is a brand-name medication that’s also available as the generic drug methylphenidate ER (extended release). Concerta has a boxed. Methylphenidate hydrochloride extended-release (ER) is a drug approved by FDA to treat attention deficit-hyperactivity disorder (ADHD) in adults and children ages six and older. The FDA is proposing to withdraw approval of two generic versions of Concerta (methylphenidate hydrochloride) extended-release (ER) capsules, used to treat attention-deficit hyperactivity. Concerta extended-release tablets are used to treat attention deficit hyperactivity disorder (ADHD) in children 6 years of age and older, adolescents, and in adults up to the age of 65. Overview: Methylphenidate is used to treat attention deficit hyperactivity disorder (ADHD) or narcolepsy. It may work by increasing natural chemicals in the brain called norepinephrine and. A number of manufacturers make generic versions of Concerta, including some that are not guaranteed to have the same osmotic-controlled release oral delivery system (OROS) as the original Concerta. Discover what generic Concerta is, its bioequivalence to the brand, and crucial insights for patients considering this medication. Wondering when a generic version of Concerta will be available? Get details on FDA approval status, generic manufacturers, and patent expirations. Generic Concerta is called methylphenidate extended-release (ER). There are several pharmaceutical companies that make generic versions of Concerta that are equivalent to the brand-name product.