Concerta--known generically as methylphenidate--is a medication used in the treatment of attention deficit hyperactivity disorder, or ADHD. Concerta is a central nervous system stimulant that carries the potential for abuse and dependence, according to Ortho-McNeil-Janssen Pharmaceuticals, Inc., the drug's manufacturer. Although Concerta may be beneficial, there are dangers associated with its use.
Sudden Death, Stroke or Heart Attack
Concerta, along with other stimulants used to treat ADHD, raise blood pressure and heart rate. These effects cause a risk of sudden death, stroke and heart attack. Manufacturers are required to warn consumers of these dangers, according to the article "FDA Committee Votes for Warning Labels on Stimulant Drugs" in the February 18, 2006 issue of "British Medical Journal." Concerta should not be used in children with preexisting heart problems or in adults with abnormal heart rhythm or coronary artery disease, as these disorders cause increased risk.
Psychiatric Symptoms
Concerta may worsen symptoms of thought and behavior disturbances in sufferers of psychiatric disorders. Concerta has also caused psychiatric symptoms, such as delusions, hallucinations and mania in users without a history of mental illness, according to Ortho-McNeil-Janssen. Hostility and aggression have also been reported.
Growth Supression
When Concerta is used in children, normal growth may be suppressed. Studies have shown that children consistently using Concerta seven days per week throughout the year show reduced height and weight compared to children not on Concerta, according to the manufacturer. Growth should be closely monitored during treatment, and children not growing as expected may need to stop treatment.
Abuse and Dependence
Concerta is a stimulant with the potential for abuse due to effects of increased alertness and energy, mood elevation and increased feelings of well-being. Although usually safe and effective when used as prescribed, if Concerta is abused, it can lead to the same problems seen with other stimulants such as cocaine and amphetamines, according to the National Institute on Drug Abuse. Abuse can lead to physical dependence and addiction, and abnormal behavior such as symptoms of psychosis. Withdrawal requires close monitoring due to the possibility for severe depression.
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