they need a special diet; especially decreasing their sugar intake into minimum would significantly calm them down. This will also help them sleep better. Sugar and a hyperactive child are an unmanagable combination! Do read carefully the ingredients of various products for their sugar, even beverages. The best is of course home made food made from scratch, of natural rawmaterials as much as possible.
Monitor: Airstrikes hit Islamic State stronghold in Syria, killing at least 13 (Reuters)
from the article: Study: Thousands of Israeli kids incorrectly prescribed Ritalin