Some fascinating quotes from the researchers as found in the news story:
.“Animal studies show that when animals were treated with methylphenidate during their childhood, persisting effects in the brain remained present well into adulthood. This alarmed me, as this hasn’t been studied in humans, but psychiatrists are increasingly prescribing methylphenidate to children to acutely decrease their symptoms of ADHD. I, together with the rest of the research group, therefore wanted to investigate this in humans in order to gain more knowledge about these possible persisting effects.”
“…no studies so far have investigated the possible long-term effects of methylphenidate on the developing brain.”
They found that methylphenidate (Ritalin) use in childhood led to decreased levels of the neurotransmitter GABA in adulthood in one part of the brain studied.
We would suggest you avail yourselves of the great, science-based information on ADD/ADHD here on lifestylefacts.org for a trustable understanding and treatment approach to ADD/ADHD.
News report on study can be found here: http://www.psypost.org/2017/07/study-ritalin-use-childhood-cause-long-lasting-alterations-neurotransmission-49241
Actual study can be found here: http://www.sciencedirect.com/science/article/pii/S2213158217301365