Interaction Checker

Trastuzumab interactions

Trastuzumab (Herceptin, Ogivri, Kanjinti) has 75 documented interactions across the FDA labels and fact sheets we index: 4 major, 48 moderate, 23 minor, and 0 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This drug page is a starting point, not a verdict for your situation.

Interactions from the label

Major interactions (4)

  • CyclophosphamideimmunosuppressantMajor

    AC Anthracycline (doxorubicin) and cyclophosphamide. → Paclitaxel+Trastuzumab 3.2% (64/2000) Includes 1 patient with fatal cardiomyopathy and 1 patient with sudden death without documented etiology. (Trastuzumab label, Warnings and precautions)

  • DoxorubicinMajor

    AC Anthracycline (doxorubicin) and cyclophosphamide. → Paclitaxel+Trastuzumab 3.2% (64/2000) Includes 1 patient with fatal cardiomyopathy and 1 patient with sudden death without documented etiology. (Trastuzumab label, Warnings and precautions)

  • Itraconazoleazole antifungalMajor

    Axitinib Bosutinib Cabazitaxel Cabozantinib Ceritinib Cobimetinib Crizotinib Dabrafenib Dasatinib Docetaxel Ibrutinib Lapatinib Nilotinib Olaparib Pazopanib Sunitinib Trabectedin Trastuzumab-­emtansine Vinca alkaloids Not recommended during and 2 weeks after TOLSURA treatment. (Itraconazole label, Drug interactions)

  • PaclitaxelMajor

    AC Anthracycline (doxorubicin) and cyclophosphamide. → Paclitaxel+Trastuzumab 3.2% (64/2000) Includes 1 patient with fatal cardiomyopathy and 1 patient with sudden death without documented etiology. (Trastuzumab label, Warnings and precautions)

Moderate interactions (48)

  • AclidiniumanticholinergicModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Albuterolbeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • AminophyllinemethylxanthineModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Arformoterolbeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Articaine and epinephrinelocal anestheticModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Azelastine and fluticasoneantihistamineModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • BeclomethasonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • BetamethasonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • BudesonidecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Budesonide and formoterolcorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Bupivacaine and epinephrinelocal anestheticModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • CarboplatinModerate

    In BCIRG006, a total of 2.9% (31/1056) of patients in the TCH (docetaxel, carboplatin, trastuzumab) arm (1.5% during the chemotherapy phase and 1.4% during the monotherapy phase) and 5.7% (61/1068) of patients in the AC-TH arm (1.5% during the chemotherapy phase and 4.2% during the monotherapy phase) discontinued trastuzumab due to cardiac toxicity. (Trastuzumab label, Warnings and precautions)

  • CiclesonidecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • ClobetasolcorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • DeflazacortcorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • DesonidecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • DexamethasonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • DiphenhydramineantihistamineModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • DocetaxelModerate

    In BCIRG006, a total of 2.9% (31/1056) of patients in the TCH (docetaxel, carboplatin, trastuzumab) arm (1.5% during the chemotherapy phase and 1.4% during the monotherapy phase) and 5.7% (61/1068) of patients in the AC-TH arm (1.5% during the chemotherapy phase and 4.2% during the monotherapy phase) discontinued trastuzumab due to cardiac toxicity. (Trastuzumab label, Warnings and precautions)

  • EpinephrinesympathomimeticModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • FludrocortisonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • FlunisolidecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • FluocinonidecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • FluticasonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Fluticasone and salmeterolcorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Formoterolbeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • HalobetasolcorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • HydrocortisonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • IpratropiumanticholinergicModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Ipratropium and albuterolanticholinergicModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Isoproterenolbeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Levalbuterolbeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Lidocaine and epinephrinelocal anestheticModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • MethylprednisolonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Mirabegronbeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • MometasonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Olopatadine and mometasoneantihistamineModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • PrednisolonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • PrednisonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Prilocaine and epinephrinelocal anestheticModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Salmeterolbeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Terbutalinebeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • TheophyllinemethylxanthineModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • TiotropiumanticholinergicModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • TriamcinolonecorticosteroidModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • UmeclidiniumanticholinergicModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Umeclidinium and vilanterolanticholinergicModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

  • Vibegronbeta-adrenergic agonistModerate

    Interrupt TRAZIMERA infusion in all patients experiencing dyspnea, clinically significant hypotension, and intervention of medical therapy administered (which may include epinephrine, corticosteroids, diphenhydramine, bronchodilators, and oxygen). (Trastuzumab label, Warnings and precautions)

Minor mentions (23)

  • AzelastineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • Brompheniramine, pseudoephedrine, and dextromethorphanantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • CarbinoxamineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • CetirizineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • ChlorpheniramineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • ClemastineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • CyproheptadineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • DesloratadineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • DexchlorpheniramineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • DimenhydrinateantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • DoxylamineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • Doxylamine and pyridoxineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • FexofenadineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • Hydrocodone and chlorpheniramineopioidMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • HydroxyzineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • LevocetirizineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • LoratadineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • MeclizineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • OlopatadineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • PalbociclibCYP3A4 inhibitorMinor

    Grade ≥3 neutropenia was reported in 61% of patients receiving IBRANCE in combination with trastuzumab, with or without pertuzumab, and endocrine therapy. (Palbociclib label, Warnings and precautions)

  • PromethazineantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • Promethazine and codeineopioidMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

  • Promethazine and dextromethorphanantihistamineMinor

    Prior to resumption of trastuzumab infusion, the majority of patients who experienced a severe infusion reaction were pre-medicated with antihistamines and/or corticosteroids. (Trastuzumab label, Warnings and precautions)

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Not medical advice. Severity reflects the label's wording, not your circumstances. A "major" flag can be routine under supervision and a "minor" one can matter at high doses. Ask a pharmacist.