Rather popular preparation in Israel for treatment of the Syndrome of deficiency of attention and hyperactivity (ADHD) at children Ritalinum causes for a long time already disagreements in a society and generates set of disputes concerning that, how much it is harmful or useful to not strong children's organism.

Last researches spent by the American national institute, studying application of narcotic preparations, have shown, that Ritalinum use lead to cerebral changes similar to changes which are caused by cocainic dependence.

As have informed on Thursday, on February, 5th, the scientists who were taking part in research, experiment was made on laboratory mice. To healthy individuals Ritalinum injections daily became, is more exact than its active substance methylphenidate. Changes have occurred in those sites of a brain which are responsible for accustoming, and they were similar to changes in a brain of mice to which gave cocaine.

"Metilphenidat till now considered as substance harmless, but actually can is strong influence biochemical and structural changes in a brain, and the injury from it can appear even more than from cocaine", - researchers from the New York university declare in the scientific article.

Experts notice, that observations over the people accepting Ritalinum, have shown, that the medicine is safe for those who really suffers an ADHD-syndrome. According to statistics, only in the USA about 7 million persons uses Metilphenidat simply for entertainment or to improve the academic achievements.