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How Risky Is Ritalin for Kids’ Hearts?

Child school homework

Parents often worry about the possible side effects of drugs prescribed for attention deficit/hyperactivity disorder (ADHD). Often they are reassured that there are no serious problems, but a new study of Korean youngsters conducted by scientists at the University of South Australia found a link between methylphenidate (Concerta, Daytrana, Metadate, Ritalin) and heart rhythm changes.

How Did They Study Ritalin & Kids’ Hearts?

The South Korea National Health Insurance Database had information on more than 100,000 children up to age 17. Their records between 2008 and 2011 were scrutinized to detect possible adverse events. The team noted more than 1,000 cardiac events among children taking methylphenidate. Arrhythmias were the most common of these.

According to Senior Research Professor Libby Roughead of the Sansom Institute for Health Research,

“What we showed was that there is an increased risk of arrhythmia…and this is more pronounced in children who have existing cardiovascular disease or are on some other medicines that can also affect the heart…What parents should know is that they should monitor simple things like blood pressure and heart rate after taking the medicine and before. If they start to feel nervous they should talk to their doctor.”

Overall, the absolute risk is low. Even with a 60 percent relative risk increase, problems with kids’ hearts are quite rare. The arrhythmias were more likely among children beginning to take methylphenidate, in the first three days of treatment.

Who Takes Ritalin?

There are more than 6 million children in the U.S. who have been diagnosed with ADHD. Not all of them take medication, and of those that do, not all take Ritalin or similar drugs. This research suggests, however, that parents of children with existing heart problems as well as ADHD might wish to search for a different way of treating them.

Because the study is observational rather than experimental, Professor Roughead warns that parents should not rush to change their children’s medications.

“What I think the study underlines is the need to consider the severity of ADHD symptoms and the option of non-stimulant treatments for children with high cardiovascular risk.”

The scientists from the University of South Australia collaborated with investigators from McGill University and the Jewish General Hospital in Canada and the Seoul National University in Korea.

BMJ, May 31, 2016

We were alerted to this story by an article in The Lead, South Australia.

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About the Author
Terry Graedon, PhD, is a medical anthropologist and co-host of The People’s Pharmacy radio show, co-author of The People’s Pharmacy syndicated newspaper columns and numerous books, and co-founder of The People’s Pharmacy website. Terry taught in the Duke University School of Nursing and was an adjunct assistant professor in the Department of Anthropology. She is a Fellow of the Society of Applied Anthropology. Terry is one of the country's leading authorities on the science behind folk remedies. .
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I think the special education classes that are geared to autistic children might be helpful for children with ADHD and should be a first resort. However, you must start early before certain behaviors become ingrained habit. Plus an early start takes advantage of a child’s natural curiosity and desire to learn. Perhaps in this way medication might be avoided, at least until the child’s body is more able to handle it. If Ritalin, etc, also interfere with the microbiome, an extremely healthy diet might make an additional difference. A third thought is the use of aromatherapy. Who knows? But any intervention between the child and medication should be explored.

Ritalin left our son with permanent gum damage. He is now in middle age and still has that problem left from when he took it. What’s more, the Ritalin didn’t help his hyperactivity. It helped for a while and then stopped so that he had to take more. Then it would help for a while and then stop. It got ridiculous. When the dentist diagnosed his gum damage, we took him off of it.

For many years I have looked for your comments in our newspaper:ToDay, printed in Melbourne, FL. I have tried many of your suggestions & found some very helpful, others, like the soap under the bedsheet helped to my surprise for some time, then it stopped. I heard about the Tonic water with quinine, which has been very helpful against my nightly “Charly Horses”, cramps in various parts of my legs. I loved its taste, it has become my favorite drink. Particularly since I also have Sjoegrens Syndrome. Now I am worried since You advised me of the idiopathic thrombocytopenic purpura disorder. My doctor just said:Cut down from 1/2 gal. per day to 1/4. I am on my legs all day, which accounts for fatigue. I am 85 which is due to forgetfulness,(confusion?) I have not encountered any of the other listed problems. Do I have to worry about the quinine? Thank you for any comments you care to make. I. C. Thomson

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