Ds is 13 and takes melatonin to aid with his sleep. He has cerebral palsy with dystonia and the melatonin really helps him sleep. His paediatrician is recommending a one month wash out (which I agree with), however I will need to give him another tablet to make him think he is still having it, sneaky of me I know but if he thinks he hasn't had it he definitely won't sleep. I take folic acid once a week to combat the side effects of methotrexate and have just noticed the folics look a lot like melatonins. Would it harm him if I gave him folic during the wash out to make him think he is still having mela?