Skip to content
Med Rx.

Ondansetron interactions

Full monograph for OndansetronCheck it against another medicine

Medicines

671 documented

Medicines documented to interact with Ondansetron, worst severity first.
MedicineSeverityMechanismEffectSources
AlmotriptanMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Amiodarone HydrochlorideMajorSynergyClass IA (e.g., disopyramide, quinidine, procainamide) and class III (e.g., amiodarone, dofetilide, sotalol) antiarrhythmic agents can cause dose-related…45 sources — open the full entry
AmisulprideMajorSynergyAmisulpride can cause dose- and concentration-dependent prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the…3 sources — open the full entry
Amitriptyline HydrochlorideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as antidepressants and lithium may potentiate the…7 sources — open the full entry
Amitriptyline Hydrochloride + ChlordiazepoxideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as antidepressants and lithium may potentiate the…7 sources — open the full entry
Arsenic TrioxideMajorSynergyArsenic trioxide can cause QT interval prolongation and complete atrioventricular block. Theoretically, coadministration with other agents that can prolong the…4 sources — open the full entry
Artemether + LumefantrineMajorSynergyArtemether-lumefantrine may cause prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval may…2 documented mechanisms16 sources — open the full entry
Bupropion HydrochlorideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
CabozantinibMajorSynergyCabozantinib can cause prolongation of the QT interval.7 sources — open the full entry
CeritinibMajorSynergyCeritinib can cause concentration-dependent prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval…9 sources — open the full entry
Chloroquine PhosphateMajorSynergyChloroquine and hydroxychloroquine can cause dose-related prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong…22 sources — open the full entry
Citalopram HydrobromideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors (SSRIs)…16 sources — open the full entry
Clomipramine HydrochlorideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as antidepressants and lithium may potentiate the…7 sources — open the full entry
ClozapineMajorSynergyClozapine has the potential to prolong QT interval of the electrocardiogram. Theoretically, coadministration with other agents that can cause QT prolongation…13 sources — open the full entry
CrizotinibMajorSynergyCrizotinib can cause concentration-dependent prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT…6 sources — open the full entry
Desvenlafaxine SuccinateMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Dextromethorphan + BupropionMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…2 documented mechanisms7 sources — open the full entry
Dextromethorphan + Phenylephrine + TriprolidineMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Dextromethorphan + Pseudoephedrine + TriprolidineMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Dextromethorphan HydrobromideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Dextromethorphan Hydrobromide + GuaifenesinMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Dextromethorphan PolistirexMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Diphenhydramine + Dextromethorphan + LevomentholMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Doxepin (Oral)MajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as antidepressants and lithium may potentiate the…7 sources — open the full entry
Doxepin (Topical)MajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Duloxetine HydrochlorideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
EfavirenzMajorMetabolismEfavirenz can cause significant QT interval prolongation in patients with the CYP450 2B6 *6/*6 genotype due to reduced metabolic clearance of the drug stemming…6 sources — open the full entry
Escitalopram OxalateMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors (SSRIs)…16 sources — open the full entry
Fentanyl CitrateMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Fluoxetine HydrochlorideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors (SSRIs)…16 sources — open the full entry
Fluphenazine + NortriptylineMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as antidepressants and lithium may potentiate the…2 documented mechanisms31 sources — open the full entry
Fluvoxamine MaleateMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors (SSRIs)…16 sources — open the full entry
GatifloxacinMajorSynergyCertain quinolones, including gatifloxacin and moxifloxacin, may cause dose-related prolongation of the QT interval in some patients. Theoretically…28 sources — open the full entry
Gatifloxacin + DexamethasoneMajorSynergy · UnknownCertain quinolones, including gatifloxacin and moxifloxacin, may cause dose-related prolongation of the QT interval in some patients. Theoretically…2 documented mechanisms28 sources — open the full entry
Guaifenesin + Dextromethorphan + MentholMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
HaloperidolMajorSynergyHaloperidol can cause dose-related prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval may…14 sources — open the full entry
Hydroxychloroquine SulphateMajorSynergyChloroquine and hydroxychloroquine can cause dose-related prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong…22 sources — open the full entry
IloperidoneMajorSynergyIloperidone may cause dose-related prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval may…9 sources — open the full entry
Imipramine HydrochlorideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as antidepressants and lithium may potentiate the…7 sources — open the full entry
IvabradineMajorSynergyDue to its bradycardic effects, the risk of QT prolongation and torsade de pointes arrhythmia may be increased when ivabradine is used with drugs that prolong…10 sources — open the full entry
IvosidenibMajorSynergyIvosidenib can cause prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval may result in additive…6 sources — open the full entry
Lasmiditan HemisuccinateMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Lefamulin AcetateMajorSynergyLefamulin may cause dose-related prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval may result…6 sources — open the full entry
Levomilnacipran HydrochlorideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
LinezolidMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as selective serotonin reuptake inhibitors…7 sources — open the full entry
Lithium CarbonateMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as antidepressants and lithium may potentiate the…7 sources — open the full entry
Loteprednol Etabonate + GatifloxacinMajorSynergy · UnknownCertain quinolones, including gatifloxacin and moxifloxacin, may cause dose-related prolongation of the QT interval in some patients. Theoretically…2 documented mechanisms28 sources — open the full entry
Maprotiline HydrochlorideMajorSynergyConcomitant use of 5-HT3 receptor antagonists with agents that possess or enhance serotonergic activity such as antidepressants and lithium may potentiate the…7 sources — open the full entry
MifepristoneMajorSynergyMifepristone may prolong the QTc interval in a dose-related manner. Theoretically, coadministration with other agents that can prolong the QT interval may…10 sources — open the full entry
Mifepristone + MisoprostolMajorSynergy · UnknownMifepristone may prolong the QTc interval in a dose-related manner. Theoretically, coadministration with other agents that can prolong the QT interval may…2 documented mechanisms10 sources — open the full entry

Conditions

Conditions in which Ondansetron needs care, as documented in this source.

Therapeutic duplication

Drug classes that overlap with Ondansetron, so taking both doubles up the same effect. This source publishes no per-row citations for duplication.