Cimetidine mkp 300 belongs to the group of gastrointestinal drugs with the main ingredient being cimetidine. It is indicated for the treatment and prevention of advanced duodenal ulcer. However, during treatment with the drug may occur unwanted side effects such as diarrhea, headache, dizziness... Therefore, before using Cimetidine mkp 300, patients need to find out. Be careful and follow the doctor's treatment..