Bupropion Hydrochloride has 34 known drug interactions based on U.S. FDA drug labeling data. Of these, 2 are contraindicated combinations that should be avoided entirely. 5 are classified as major interactions requiring close medical supervision. Notable interactions include combinations with Clopidogrel, Ticlopidine, Amantadine. Patients taking Bupropion Hydrochloride should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.
- Total
- 34
- Contraindicated
- 2
- Major
- 5
- Moderate
- 21
- Minor
- 1
Contraindicated (2)
- Bupropion Hydrochloride + Clopidogrel— Coadministration not recommended due to increased bupropion exposure and decreased hydroxybupropion exposure.
- Bupropion Hydrochloride + Ticlopidine— Coadministration not recommended due to increased bupropion exposure and decreased hydroxybupropion exposure.
Major (5)
- Bupropion Hydrochloride + Amantadine— Dopaminergic drug. CNS toxicity can occur when used concomitantly with bupropion.
- Bupropion Hydrochloride + Desipramine— Bupropion increased desipramine Cmax, AUC, and t1/2 by approximately 2-, 5-, and 2-fold, respectively; effect persisted …
- Bupropion Hydrochloride + Levodopa— Dopaminergic drug. CNS toxicity can occur when used concomitantly with bupropion.
- Bupropion Hydrochloride + Maois— Increased risk of hypertensive reactions can occur when used concomitantly with bupropion.
- Bupropion Hydrochloride + Monoamine Oxidase Inhibitors (Maois)— Increased risk of hypertensive reactions when used concomitantly with bupropion.
Moderate (21)
- Bupropion Hydrochloride + Carbamazepine— CYP2B6 inducer that may decrease bupropion exposure. Dose increase may be necessary but should not exceed maximum recomm…
- Bupropion Hydrochloride + Cimetidine— Cimetidine increased AUC and Cmax of threohydrobupropion and erythrohydrobupropion metabolites by 16% and 32%, respectiv…
- Bupropion Hydrochloride + Digoxin— Bupropion may decrease plasma digoxin levels. Monitor digoxin levels.
- Bupropion Hydrochloride + Efavirenz— CYP2B6 inducer that may decrease bupropion and hydroxybupropion exposure. Dose increase may be necessary but should not …
- Bupropion Hydrochloride + Flecainide— CYP2D6-metabolized Type 1C antiarrhythmic. Bupropion inhibits CYP2D6 and can increase flecainide concentrations. Conside…
- Bupropion Hydrochloride + Fluoxetine— CYP2D6-metabolized antidepressant. Bupropion inhibits CYP2D6 and can increase fluoxetine concentrations. Consider dose r…
- Bupropion Hydrochloride + Haloperidol— CYP2D6-metabolized antipsychotic. Bupropion inhibits CYP2D6 and can increase haloperidol concentrations. Consider dose r…
- Bupropion Hydrochloride + Imipramine— CYP2D6-metabolized antidepressant. Bupropion inhibits CYP2D6 and can increase imipramine concentrations. Consider dose r…
- Bupropion Hydrochloride + Lopinavir— CYP2B6 inducer that may decrease bupropion and hydroxybupropion exposure. Dose increase may be necessary but should not …
- Bupropion Hydrochloride + Metoprolol— Therefore, coadministration of bupropion with drugs that are metabolized by CYP2D6 isoenzyme including certain antidepre…
- Bupropion Hydrochloride + Nortriptyline— CYP2D6-metabolized antidepressant. Bupropion inhibits CYP2D6 and can increase nortriptyline concentrations. Consider dos…
- Bupropion Hydrochloride + Paroxetine— CYP2D6-metabolized antidepressant. Bupropion inhibits CYP2D6 and can increase paroxetine concentrations. Consider dose r…
- Bupropion Hydrochloride + Phenobarbital— CYP2B6 inducer that may decrease bupropion exposure. Dose increase may be necessary but should not exceed maximum recomm…
- Bupropion Hydrochloride + Phenytoin— CYP2B6 inducer that may decrease bupropion exposure. Dose increase may be necessary but should not exceed maximum recomm…
- Bupropion Hydrochloride + Propafenone— CYP2D6-metabolized Type 1C antiarrhythmic. Bupropion inhibits CYP2D6 and can increase propafenone concentrations. Consid…
- Bupropion Hydrochloride + Risperidone— CYP2D6-metabolized antipsychotic. Bupropion inhibits CYP2D6 and can increase risperidone concentrations. Consider dose r…
- Bupropion Hydrochloride + Ritonavir— CYP2B6 inducer that may decrease bupropion and hydroxybupropion exposure. Dose increase may be necessary but should not …
- Bupropion Hydrochloride + Sertraline— CYP2D6-metabolized antidepressant. Bupropion inhibits CYP2D6 and can increase sertraline concentrations. Consider dose r…
- Bupropion Hydrochloride + Tamoxifen— Drug requiring metabolic activation by CYP2D6 that may have reduced efficacy when coadministered with bupropion. Increas…
- Bupropion Hydrochloride + Thioridazine— CYP2D6-metabolized antipsychotic. Bupropion inhibits CYP2D6 and can increase thioridazine concentrations. Consider dose …
- Bupropion Hydrochloride + Venlafaxine— CYP2D6-metabolized antidepressant. Bupropion inhibits CYP2D6 and can increase venlafaxine concentrations. Consider dose …
Minor (1)
- Bupropion Hydrochloride + Lamotrigine— Multiple oral doses of bupropion had no statistically significant effects on single dose pharmacokinetics of lamotrigine…