nightmare after taking clarithromycin

the 2nd day of taking clarithromycin i had a dream about driving behind a truck which had a huge roller in the back of it thats used for rolling over things/crushing things that you see on some tractors. but what this thing was crushing was live sheep. and then it went black and then it returned for part 2 but this time it was children.......... it was gruesome. i have never had this sort of dream before until i took these tablets, clarithromycin. others have reported bad nightmares taking these tablets as well. i also had a few normal very vivid dreams.