Triclofos sodium (the active ingredient in the prescribed syrup) is commonly and safely used under medical supervision to help children sleep during an EEG. It is prescribed because movement can distort test results, and a sleep EEG provides crucial diagnostic data. Mild side effects include post-procedure drowsiness, nausea, or temporary fussiness. While it is possible to perform an EEG without sedationparticularly by using a sleep-deprivation strategy so the child falls asleep naturallyit can be highly challenging for young children to stay perfectly still. If you wish to avoid medication, please discuss a natural sleep protocol with your doctor.