Concerta, also known as Methylphenidate, 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 Methylphenidate 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.
Methylphenidate is a central nervous system (CNS) stimulant. Methylphenidate 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. Methylphenidate HCl USP is a white, odorless crystalline powder. Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular weight is 269.77. Methylphenidate also contains the following inert ingredients: butylated hydroxytoluene, carnauba wax, cellulose acetate, hydroxypropyl methylcellulose, lactose, phosphoric acid, poloxamer, polyethylene glycol, polyethylene oxides, povidone, propylene glycol, sodium chloride, stearic acid, succinic acid, synthetic iron oxides, titanium dioxide, and triacetin.
Methylphenidate has the following structural formula:
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