WORKING ON SHIP RECENTLY 7DAYS I BACK JOINED SHIP, SINCE I CAME ON BOARD I FELT STOMACH UPSET, INITIALLY I THOUGHT WILL RECOVER NORMALLY, BUTTHE PROBLEM PERSISTSS , WHICH SEEMS TO SLIGHT LOOSE MOTION ,THREE -TIMES A ....DAY I HAVE METRONIDAZOLE TABLETS & LOPOX TABLETS..PLEASE SUGGEST ME THE BETTER ONE OF THESE TWO.....