DS is on antibiotics (erythromycin) and I just need to know if I can give him medised at the same time or not. I know you can give him calpol but not sure about medised. I need to something tonight and so far we have had four nights with about 2 hours sleep a night - we are all on our knees!! Calpol makes him quite hyper where as medised helps him sleep - any advice please, am getting a bit desperate!