Have been told of a medicine that is better than Calpol or Medised to knock 'em out. Think it starts with an 'F'. Does anyone know? Would like to have some just in case DS decides that it's too exciting to sleep/sit still at all on the flight. Please don't think that I drug my child on a regular basis, as I don't, that's why I don't know the name of the medicine. Just really worried that we could have a long and tortuous journey.