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Concerta - side effects and warnings Methylphenidate - Also known as Metadate™ ER; Methylin™; Methylin ER™; Ritalin®; Ritalin-SR®* What is Concerta? Concerta is methylphenidate, a mild central nervous system stimulant used in the treatment of attention deficit hyperactivity disorder in children. When given for attention deficit disorder, this drug should be an integral part of a total treatment program that includes psychological, educational, and social measures. Symptoms of attention deficit disorder include continual problems with moderate to severe distractibility, short attention span, hyperactivity, emotional changeability, and impulsiveness. Is it Addictive? Excessive doses of this drug over a long period of time can produce addiction. It is also possible to develop tolerance to the drug, so that larger doses are needed to produce the original effect. Because of these dangers, be sure to check with your doctor before making any change in dosage; and withdraw the drug only under your doctor's supervision. What are the precautions when taking this medicine? The tablet shell of Concerta™ may appear in your bowl movement. This is normal and expected. The medicine has already been absorbed into your system. If you have small bowel disease, short gut syndrome, a history of peritonitis, cystic fibrosis, chronic intestinal pseudo-obstruction, or Meckel's diverticulum then talk with healthcare provider. You should not take Concerta™. Check medicines with healthcare provider. Monoamine oxidase inhibitors (eg, isocarboxazid, phenelzine, and tranylcypromine) must be stopped 14 days before this medicine is started. The two together could cause dangerously high blood pressure. This medicine may be habit-forming with long-term use. Limit caffeine (for example, tea, coffee, cola) and chocolate intake. Use with this medicine may cause nervousness, shakiness, rapid heartbeats, and anxiety. Use caution if you have high blood pressure. Talk with healthcare provider. Use caution if you have a history of seizures. Talk with healthcare provider. Do not use over-the-counter products that increase blood pressure. These include cough or cold remedies, diet pills, stimulants, ibuprofen or like products, and certain herbs or supplements. Talk with healthcare provider. Use caution in driving, doing other tasks or activities that require mental alertness. Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, throat; or any other symptoms involved. Tell healthcare provider if you are pregnant or plan on getting pregnant. Do not use if you are breast-feeding. Who should NOT take Concerta? This drug should not be prescribed for anyone experiencing anxiety, tension, and agitation, since the drug may aggravate these symptoms. Anyone sensitive or allergic to this drug should not take it. This medication should not be taken by anyone with the eye condition known as glaucoma, anyone who suffers from tics (repeated, involuntary twitches), or someone with a family history of Tourette's syndrome (severe and multiple tics). This drug is not intended for use in children whose symptoms may be caused by stress or a psychiatric disorder. This medication should not be used for the prevention or treatment of normal fatigue, nor should it be used for the treatment of severe depression This drug should not be taken during treatment with drugs classified as monoamine oxidase inhibitors, such as the antidepressants Nardil and Parnate, nor for the 2 weeks following discontinuation of these drugs. What are the possible Side Effects? Common side effects of this medicine: Inability to sleep, nervousness, restlessness, lack of appetite. Dizziness is common. Rise slowly over several minutes from sitting or lying position. Be careful climbing stairs. High blood pressure. Rapid heartbeats, abnormal heartbeats, chest pain or pressure. Other possible effects: Abdominal pain, abnormal heartbeat, abnormal muscular movements, blood pressure changes, chest pain, dizziness, drowsiness, fever, hair loss, headache, hives, jerking, joint pain, loss of appetite, nausea, palpitations (fluttery or throbbing heartbeat), pulse changes, rapid heartbeat, reddish or purplish skin spots, skin reddening, skin inflammation with peeling, skin rash, Tourette's syndrome (severe twitching), weight loss during long-term treatment