AdultPediatricDosage Forms & Strengths IM solution 0.5mL/prefilled syringe Influenza Prophylaxis Indicated for active immunization against influenza virus subtypes A and B contained in the vaccine for adults aged ≥18 yr 0.5 mL IM x1/season Dosing Considerations Contents for 2023-2024 Northern Hemisphere season: A/Wisconsin/67/2022 (H1N1)pdm09-like virus (new for 2023-2024) A/Darwin/6/2021 (H3N2)-like virus (no change from last season) B/Austria/1359417/2021 (B/Victoria lineage)-like virus (no change from last season) B/Phuket/3073/2013-like virus (B/Yamagata lineage) (no change from last season) Egg allergy The Advisory Committee on Immunization Practices (ACIP) recommends Flublok Quadrivalent for vaccination of persons with egg allergy of any severity Flublok Quadrivalent does not use the influenza virus or chicken eggs in its manufacturing process <18 years: Safety and efficacy not establishedInteraction CheckerEnter a drug name and influenza virus vaccine quadrivalent, recombinantNo Results No Interactions Found Interactions FoundContraindicatedSerious - Use AlternativeSignificant - Monitor CloselyMinorAll Interactions Sort By: SeverityName Contraindicated (1)ustekinumabustekinumab decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Contraindicated. Prior initiating therapy, patients should receive all age-appropriate immunizations as recommended by current guidelines. Immunosuppressants also increase risk of infection with concomitant live vaccines.Serious - Use Alternative (7)brodalumabbrodalumab, influenza virus vaccine quadrivalent, recombinant. immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Prior to initiating brodalumab, complete all age appropriate immunizations. No data are available on the ability of live or inactive vaccines to elicit an immune response in patients being treated with brodalumab.brodalumab, influenza virus vaccine quadrivalent, recombinant. Other (see comment). Avoid or Use Alternate Drug. Comment: Prior to initiating brodalumab, complete all age appropriate immunizations. No data are available on the ability of live or inactive vaccines to elicit an immune response in patients being treated with brodalumab.elivaldogene autotemcelelivaldogene autotemcel, influenza virus vaccine quadrivalent, recombinant. Either decreases effects of the other by Other (see comment). Avoid or Use Alternate Drug. Comment: The safety and effectiveness of vaccination during or following elivaldogene autotemcel treatment have not been studied. Vaccination is not recommended during the 6 weeks preceding myeloablative conditioning, and until hematological recovery following elivaldogene autotemcel treatment. Where feasible, administer childhood vaccinations before myeloablative conditioning. .ixekizumabixekizumab decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Prior to initiating ixekizumab, complete all age appropriate immunizations; non-live vaccinations received during treatment with ixekizumab may not elicit an immune response sufficient to prevent disease.ofatumumab SCofatumumab SC decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Administer all immunizations according to immunization guidelines at least 2 weeks before initiating ofatumumab SC for inactivated vaccines, and whenever possible.secukinumabsecukinumab decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Prior to initiating secukinumab, complete all age appropriate immunizations; non-live vaccinations received during treatment with secukinumab may not elicit an immune response sufficient to prevent disease.siponimodsiponimod decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Pause vaccinations beginning 1 week before initiating siponimod and for 4 weeks after stopping treatment. Coadministration with live attenuated vaccines may increase infection risk.teplizumabteplizumab decreases effects of influenza virus vaccine quadrivalent, recombinant by Other (see comment). Avoid or Use Alternate Drug. Comment: Administer all age-appropriate vaccinations before starting teplizumab. Inactivated or mRNA vaccines are not recommended within 2 weeks before teplizumab treatment, during treatment, or 6 weeks after completion of treatment.Monitor Closely (50)adalimumabadalimumab decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.alefaceptalefacept decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.anakinraanakinra decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.antithymocyte globulin equineantithymocyte globulin equine decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.antithymocyte globulin rabbitantithymocyte globulin rabbit decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.azathioprineazathioprine decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.basiliximabbasiliximab decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.belimumabbelimumab decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.budesonidebudesonide decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.canakinumabcanakinumab decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.certolizumab pegolcertolizumab pegol decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.cortisonecortisone decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.cyclosporinecyclosporine decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Modify Therapy/Monitor Closely. If possible, complete all age-appropriate vaccinations at least 2 weeks before initiating immunosuppressant therapy. Patients vaccinated <14 days before starting immunosuppressive therapy or during immunosuppressive therapy should be revaccinated at least 3 months after therapy is discontinued if immune competence has been restored. Longer waiting periods may be required for drugs that maintain their immunosuppressive effects for more than 3 months after discontinuation (eg, ocrelizumab). .deflazacortdeflazacort decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.dexamethasonedexamethasone decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.etanerceptetanercept decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.everolimuseverolimus decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.fludrocortisonefludrocortisone decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.glatiramerglatiramer decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.golimumabgolimumab decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.hydrocortisonehydrocortisone decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.ibrutinibibrutinib decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Modify Therapy/Monitor Closely. Coadministration with immunosuppressant therapy reduced efficacy of the vaccine may occur. If possible, complete all age-appropriate vaccinations at least 2 weeks prior to initiation of immunosuppressant therapy. Patients vaccinated <14 days before initiation or during immunosuppressive therapy should be revaccinated at least 3 months after therapy is discontinued. .ifosfamideifosfamide decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Modify Therapy/Monitor Closely. Coadministration with immunosuppressant therapy reduced efficacy of the vaccine may occur. If possible, complete all age-appropriate vaccinations at least 2 weeks prior to initiation of immunosuppressant therapy. Patients vaccinated <14 days before initiation or during immunosuppressive therapy should be revaccinated at least 3 months after therapy is discontinued. .infliximabinfliximab decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.leflunomideleflunomide decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.lomustinelomustine decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Modify Therapy/Monitor Closely. Coadministration with immunosuppressant therapy reduced efficacy of the vaccine may occur. If possible, complete all age-appropriate vaccinations at least 2 weeks prior to initiation of immunosuppressant therapy. Patients vaccinated <14 days before initiation or during immunosuppressive therapy should be revaccinated at least 3 months after therapy is discontinued. .mechlorethaminemechlorethamine decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Modify Therapy/Monitor Closely. Coadministration with immunosuppressant therapy reduced efficacy of the vaccine may occur. If possible, complete all age-appropriate vaccinations at least 2 weeks prior to initiation of immunosuppressant therapy. Patients vaccinated <14 days before initiation or during immunosuppressive therapy should be revaccinated at least 3 months after therapy is discontinued. .melphalanmelphalan decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Modify Therapy/Monitor Closely. Coadministration with immunosuppressant therapy reduced efficacy of the vaccine may occur. If possible, complete all age-appropriate vaccinations at least 2 weeks prior to initiation of immunosuppressant therapy. Patients vaccinated <14 days before initiation or during immunosuppressive therapy should be revaccinated at least 3 months after therapy is discontinued. .mercaptopurinemercaptopurine decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.methotrexatemethotrexate decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.methylprednisolonemethylprednisolone decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.muromonab CD3muromonab CD3 decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.mycophenolatemycophenolate decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.onasemnogene abeparvoveconasemnogene abeparvovec decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Modify Therapy/Monitor Closely. Adjust vaccinations to accommodate concomitant corticosteroid administration prior to and following onasemnogene abeparvovec infusion. When initiating systemic corticosteriod therapy, wait 2 weeks after an inactivated vaccine.oseltamiviroseltamivir decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Avoid administration of live attenuated influenza vaccine intranasal within 2 weeks before or 48 hours after administration of oseltamivir, unless medically indicated.oxaliplatinoxaliplatin decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Modify Therapy/Monitor Closely. Coadministration with immunosuppressant therapy reduced efficacy of the vaccine may occur. If possible, complete all age-appropriate vaccinations at least 2 weeks prior to initiation of immunosuppressant therapy. Patients vaccinated <14 days before initiation or during immunosuppressive therapy should be revaccinated at least 3 months after therapy is discontinued. .ponesimodponesimod decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Use Caution/Monitor. If possible, complete all age-appropriate vaccinations at least 4 weeks before initiating ponesimod.prednisoloneprednisolone decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.prednisoneprednisone decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.procarbazineprocarbazine decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Modify Therapy/Monitor Closely. Coadministration with immunosuppressant therapy reduced efficacy of the vaccine may occur. If possible, complete all age-appropriate vaccinations at least 2 weeks prior to initiation of immunosuppressant therapy. Patients vaccinated <14 days before initiation or during immunosuppressive therapy should be revaccinated at least 3 months after therapy is discontinued. .rilonaceptrilonacept decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.satralizumabsatralizumab decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Modify Therapy/Monitor Closely. Administer all immunizations according to immunization guidelines. At least 2 weeks before initiating for non-live vaccines. .sirolimussirolimus decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.tacrolimustacrolimus decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.temsirolimustemsirolimus decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.tocilizumabtocilizumab decreases effects of influenza virus vaccine quadrivalent, recombinant by pharmacodynamic antagonism. Use Caution/Monitor. Immune response to vaccine may be decreased in immunocompromised individuals.tralokinumabtralokinumab will decrease the level or