Drugs Home > Drug Interactions With Ondansetron
Taking ondansetron with rifampicin can decrease the level of ondansetron in your blood. For most people, this interaction will not cause any problems and the doses of these medications do not need to be adjusted.
Drugs Containing Tramadol
Taking ondansetron with tramadol-containing drugs may increase your need for tramadol. Your healthcare provider may need to increase your dose of tramadol.