Yuhanonseran medicine is used to treat symptoms of nausea and vomiting of many causes, the drug has the main ingredient is Ondansetron active form Ondansetron hydrochloride, content 4mg. The drug is prepared in the form of disintegrating tablets in the mouth, contained in a box of 3 blisters, each blister of 4 tablets. So what is Yuhanonseran and how does it work clinically?