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Concerta tablets Concerta review
Pharmacy and Drugs

     .: Prescription

Also known as Methylphenidate, Concerta belongs to the group of medicines called central nervous system (CNS) stimulants. It is used to treat attention-deficit hyperactivity disorder (ADHD), and narcolepsy by increasing attention and decreasing restlessness.

Be sure to tell your doctor of any allergies you have whether it is to medication or food, preservatives, or dyes. Tell your doctor immediately if you are, or become pregnant, or are breastfeeding, as it is unknown how Concerta may affect your baby. Also, tell your doctor of any other medications you are taking, including vitamins and supplements, and any medical conditions you may have.

It is very important that you take this medicine exactly as your doctor tells you to. If you miss a dose of this medicine, take it as soon as you remember, unless it is almost time for your next dose. Do NOT double doses.

Tell your doctor as soon as possible if any of the following side effects occur: fast heartbeat; increased blood pressure; chest pain; fever; joint pain; skin rash or hives; uncontrolled movements of the body; black, tarry stools; blood in urine or stools; blurred vision or other changes in vision; convulsions (seizures); muscle cramps; pinpoint red spots on skin; uncontrolled vocal outbursts and/or tics (uncontrolled and repeated body movements); or unusual bleeding or bruising.

CONCERTA is a central nervous system (CNS) stimulant. CONCERTA® is available in four tablet strengths. Each extended-release tablet for once-a-day oral administration contains 18, 27, 36, or 54 mg of methylphenidate HCl USP and is designed to have a 12-hour duration of effect. Chemically, methylphenidate HCl is d,l (racemic) methyl α-phenyl-2-piperidineacetate hydrochloride. Its empirical formula is C14H19NO2•HCl. CONCERTA uses osmotic pressure to deliver methylphenidate HCl at a controlled rate. The system, which resembles a conventional tablet in appearance, comprises an osmotically active trilayer core surrounded by a semipermeable membrane with an immediate-release drug overcoat. The trilayer core is composed of two drug layers containing the drug and excipients, and a push layer containing osmotically active components. There is a precision-laser drilled orifice on the drug-layer end of the tablet. In an aqueous environment, such as the gastrointestinal tract, the drug overcoat dissolves within one hour, providing an initial dose of methylphenidate. Water permeates through the membrane into the tablet core. As the osmotically active polymer excipients expand, methylphenidate is released through the orifice. The membrane controls the rate at which water enters the tablet core, which in turn controls drug delivery. Furthermore, the drug release rate from the system increases with time over a period of 6 to 7 hours due to the drug concentration gradient incorporated into the two drug layers of CONCERTA®. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the stool as a tablet shell along with insoluble core components. It is possible that CONCERTA extendedrelease tablets may be visible on abdominal x-rays under certain circumstances, especially when digital enhancing techniques are utilized.

Concerta has the following structural formula:

Concerta chemical structure
Generic name: Methylphenidate

Brand name(s): Metadate CD :: Metadate ER :: Methylin :: Methylin ER :: Ritalin :: Ritalin LA

Similar drugs: Olanzapine :: Risperidone :: Aripiprazole

  Add Comment
Tell others what you thought about Concerta.

Nick: Score:

.: Add date: 2008-10-03 06:09:04 .: Score: 1

I hated taking it because it made me wierd and when i stopped taking it i gained a lot of weight

Submitted by ADHD kid

.: Add date: 2008-10-12 13:38:00 .: Score: 10

this tuff rocks if you crush it. have narcolepsy and i have to do this. my doctor got an insurance override for 400 54 mg pills and it is a lifesaver.

Submitted by anonymous

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