Cefixime is a cephalosporin antibiotic. It works by killing bacteria or preventing their growth.Additional information:Cefixime is generally well-tolerated, but it can cause side effects such as diarrhea, nausea, vomiting, and stomach upset.Cefixime can interact with other medications, such as blood thinners and antacids. Tell your doctor about all the medications you are taking before starting cefixime.Cefixime should not be taken if you are allergic to cephalosporin antibiotics.Additional information:Cefixime is a prescription medication. Talk to your doctor to see if cefixime is right for you.If you miss a dose of cefixime, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed dose.Store cefixime at room temperature, away from heat and moisture.