erythromycin ethylsuccinate both increase QTc interval. Avoid or Use Alternate Drug.erythromycin lactobionatehydroxychloroquine sulfate and erythromycin lactobionate both increase QTc interval. Avoid or Use Alternate Drug.erythromycin stearatehydroxychloroquine sulfate and erythromycin stearate both increase QTc interval. Avoid or Use Alternate Drug.escitalopramhydroxychloroquine sulfate and escitalopram both increase QTc interval. Avoid or Use Alternate Drug.escitalopram increases toxicity of hydroxychloroquine sulfate by QTc interval. Avoid or Use Alternate Drug.etanerceptetanercept and hydroxychloroquine sulfate both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.everolimuseverolimus and hydroxychloroquine sulfate both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.ezogabinehydroxychloroquine sulfate and ezogabine both increase QTc interval. Avoid or Use Alternate Drug.fexinidazolefexinidazole and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug. Avoid coadministration of fexinidazole with drugs known to block potassium channels and/or prolong QT interval.fingolimodfingolimod and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.flecainidehydroxychloroquine sulfate and flecainide both increase QTc interval. Avoid or Use Alternate Drug.fluconazolehydroxychloroquine sulfate and fluconazole both increase QTc interval. Avoid or Use Alternate Drug.fluoxetinehydroxychloroquine sulfate and fluoxetine both increase QTc interval. Avoid or Use Alternate Drug.fluphenazinehydroxychloroquine sulfate and fluphenazine both increase QTc interval. Avoid or Use Alternate Drug.formoterolhydroxychloroquine sulfate and formoterol both increase QTc interval. Avoid or Use Alternate Drug.foscarnethydroxychloroquine sulfate and foscarnet both increase QTc interval. Avoid or Use Alternate Drug.gemifloxacinhydroxychloroquine sulfate and gemifloxacin both increase QTc interval. Avoid or Use Alternate Drug.gemtuzumabhydroxychloroquine sulfate and gemtuzumab both increase QTc interval. Avoid or Use Alternate Drug.gilteritinibgilteritinib and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.glasdegibhydroxychloroquine sulfate and glasdegib both increase QTc interval. Avoid or Use Alternate Drug.glatiramerglatiramer and hydroxychloroquine sulfate both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.golimumabgolimumab and hydroxychloroquine sulfate both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.granisetrongranisetron and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.haloperidolhydroxychloroquine sulfate and haloperidol both increase QTc interval. Avoid or Use Alternate Drug.hepatitis A vaccine inactivatedhydroxychloroquine sulfate decreases effects of hepatitis A vaccine inactivated by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.hepatitis a/b vaccinehydroxychloroquine sulfate decreases effects of hepatitis a/b vaccine by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.hepatitis a/typhoid vaccinehydroxychloroquine sulfate decreases effects of hepatitis a/typhoid vaccine by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.hepatitis b vaccinehydroxychloroquine sulfate decreases effects of hepatitis b vaccine by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.human papillomavirus vaccine, nonavalenthydroxychloroquine sulfate decreases effects of human papillomavirus vaccine, nonavalent by pharmacodynamic antagonism. Avoid or Use Alternate Drug. Immunosuppressive therapies, including irradiation, antimetabolites, alkylating agents, cytotoxic drugs, and corticosteroids (used in greater than physiologic doses), may reduce the immune responses to vaccines.human papillomavirus vaccine, quadrivalenthydroxychloroquine sulfate decreases effects of human papillomavirus vaccine, quadrivalent by pharmacodynamic antagonism. Avoid or Use Alternate Drug. Immunosuppressive therapies, including irradiation, antimetabolites, alkylating agents, cytotoxic drugs, and corticosteroids (used in greater than physiologic doses), may reduce the immune responses to vaccines.hydroxyzinehydroxyzine and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.ibutilidehydroxychloroquine sulfate and ibutilide both increase QTc interval. Avoid or Use Alternate Drug.idecabtagene vicleucelhydroxychloroquine sulfate, idecabtagene vicleucel. Either increases effects of the other by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.iloperidonehydroxychloroquine sulfate and iloperidone both increase QTc interval. Avoid or Use Alternate Drug.indacaterol, inhaledhydroxychloroquine sulfate and indacaterol, inhaled both increase QTc interval. Avoid or Use Alternate Drug.indapamidehydroxychloroquine sulfate and indapamide both increase QTc interval. Avoid or Use Alternate Drug.infliximabhydroxychloroquine sulfate and infliximab both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.influenza virus vaccine quadrivalent, cell-culturedhydroxychloroquine sulfate decreases effects of influenza virus vaccine quadrivalent, cell-cultured by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.influenza virus vaccine quadrivalent, intranasalhydroxychloroquine sulfate decreases effects of influenza virus vaccine quadrivalent, intranasal by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.influenza virus vaccine trivalenthydroxychloroquine sulfate decreases effects of influenza virus vaccine trivalent by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.inotuzumabhydroxychloroquine sulfate and inotuzumab both increase QTc interval. Avoid or Use Alternate Drug.isofluraneisoflurane and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.isradipinehydroxychloroquine sulfate and isradipine both increase QTc interval. Avoid or Use Alternate Drug.itraconazoleitraconazole and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.Japanese encephalitis virus vaccinehydroxychloroquine sulfate decreases effects of Japanese encephalitis virus vaccine by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.lapatinibhydroxychloroquine sulfate and lapatinib both increase QTc interval. Avoid or Use Alternate Drug.leflunomidehydroxychloroquine sulfate and leflunomide both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.levofloxacinhydroxychloroquine sulfate and levofloxacin both increase QTc interval. Avoid or Use Alternate Drug.lisocabtagene maraleucelhydroxychloroquine sulfate, lisocabtagene maraleucel. Either increases effects of the other by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.lithiumlithium and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.lofexidinehydroxychloroquine sulfate and lofexidine both increase QTc interval. Avoid or Use Alternate Drug.lopinavirhydroxychloroquine sulfate and lopinavir both increase QTc interval. Avoid or Use Alternate Drug.maprotilinehydroxychloroquine sulfate and maprotiline both increase QTc interval. Avoid or Use Alternate Drug.measles (rubeola) vaccinehydroxychloroquine sulfate decreases effects of measles (rubeola) vaccine by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.measles mumps and rubella vaccine, livehydroxychloroquine sulfate decreases effects of measles mumps and rubella vaccine, live by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.measles, mumps, rubella and varicella vaccine, livehydroxychloroquine sulfate decreases effects of measles, mumps, rubella and varicella vaccine, live by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.mefloquinehydroxychloroquine sulfate and mefloquine both increase QTc interval. Avoid or Use Alternate Drug.meningococcal A C Y and W-135 polysaccharide vaccine combinedhydroxychloroquine sulfate decreases effects of meningococcal A C Y and W-135 polysaccharide vaccine combined by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.methadonehydroxychloroquine sulfate and methadone both increase QTc interval. Avoid or Use Alternate Drug.mifepristonehydroxychloroquine sulfate and mifepristone both increase QTc interval. Avoid or Use Alternate Drug.mirtazapinemirtazapine and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.mobocertinibmobocertinib and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug. If coadministration unavoidable, reduce mobocertinib dose and monitor QTc interval more frequently.moxifloxacinhydroxychloroquine sulfate and moxifloxacin both increase QTc interval. Avoid or Use Alternate Drug.muromonab CD3hydroxychloroquine sulfate and muromonab CD3 both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.mycophenolatehydroxychloroquine sulfate and mycophenolate both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.nilotinibhydroxychloroquine sulfate and nilotinib both increase QTc interval. Avoid or Use Alternate Drug.nortriptylinehydroxychloroquine sulfate and nortriptyline both increase QTc interval. Avoid or Use Alternate Drug.octreotidehydroxychloroquine sulfate and octreotide both increase QTc interval. Avoid or Use Alternate Drug.ofloxacinhydroxychloroquine sulfate and ofloxacin both increase QTc interval. Avoid or Use Alternate Drug.olanzapinehydroxychloroquine sulfate and olanzapine both increase QTc interval. Avoid or Use Alternate Drug.ondansetronhydroxychloroquine sulfate and ondansetron both increase QTc interval. Avoid or Use Alternate Drug.osimertinibhydroxychloroquine sulfate and osimertinib both increase QTc interval. Avoid or Use Alternate Drug.oxaliplatinoxaliplatin and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.paliperidonehydroxychloroquine sulfate and paliperidone both increase QTc interval. Avoid or Use Alternate Drug.panobinostathydroxychloroquine sulfate and panobinostat both increase QTc interval. Avoid or Use Alternate Drug.pasireotidehydroxychloroquine sulfate and pasireotide both increase QTc interval. Avoid or Use Alternate Drug.pazopanibhydroxychloroquine sulfate and pazopanib both increase QTc interval. Avoid or Use Alternate Drug.pentamidinehydroxychloroquine sulfate and pentamidine both increase QTc interval. Avoid or Use Alternate Drug.perphenazinehydroxychloroquine sulfate and perphenazine both increase QTc interval. Avoid or Use Alternate Drug.pimavanserinhydroxychloroquine sulfate and pimavanserin both increase QTc interval. Avoid or Use Alternate Drug.pimozidehydroxychloroquine sulfate and pimozide both increase QTc interval. Avoid or Use Alternate Drug.pitolisanthydroxychloroquine sulfate and pitolisant both increase QTc interval. Avoid or Use Alternate Drug.pneumococcal vaccine 13-valenthydroxychloroquine sulfate decreases effects of pneumococcal vaccine 13-valent by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.pneumococcal vaccine heptavalenthydroxychloroquine sulfate decreases effects of pneumococcal vaccine heptavalent by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.pneumococcal vaccine polyvalenthydroxychloroquine sulfate decreases effects of pneumococcal vaccine polyvalent by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.posaconazolehydroxychloroquine sulfate and posaconazole both increase QTc interval. Avoid or Use Alternate Drug.primaquineprimaquine and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.procainamidehydroxychloroquine sulfate increases toxicity of procainamide by QTc interval. Avoid or Use Alternate Drug.propafenonehydroxychloroquine sulfate and propafenone both increase QTc interval. Avoid or Use Alternate Drug.protriptylinehydroxychloroquine sulfate and protriptyline both increase QTc interval. Avoid or Use Alternate Drug.quetiapinehydroxychloroquine sulfate and quetiapine both increase QTc interval. Avoid or Use Alternate Drug.quinidinehydroxychloroquine sulfate and quinidine both increase QTc interval. Avoid or Use Alternate Drug.quininehydroxychloroquine sulfate and quinine both increase QTc interval. Avoid or Use Alternate Drug.rabies vaccinehydroxychloroquine sulfate decreases effects of rabies vaccine by pharmacodynamic antagonism. Contraindicated. Immunosuppressants may interfere with development of active immunity.rabies vaccine chick embryo cell derivedhydroxychloroquine sulfate decreases effects of rabies vaccine chick embryo cell derived by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.ranolazinehydroxychloroquine sulfate and ranolazine both increase QTc interval. Avoid or Use Alternate Drug.remdesivirhydroxychloroquine sulfate decreases effects of remdesivir by unspecified interaction mechanism. Avoid or Use Alternate Drug. Coadministration not recommended owing to antagonistic effect on remdesivir?s intracellular metabolic activation and antiviral activity.ribociclibhydroxychloroquine sulfate and ribociclib both increase QTc interval. Avoid or Use Alternate Drug.ribociclib increases toxicity of hydroxychloroquine sulfate by QTc interval. Avoid or Use Alternate Drug.rilonacepthydroxychloroquine sulfate and rilonacept both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.rilpivirinehydroxychloroquine sulfate and rilpivirine both increase QTc interval. Avoid or Use Alternate Drug.risperidonehydroxychloroquine sulfate and risperidone both increase QTc interval. Avoid or Use Alternate Drug.ritonavirhydroxychloroquine sulfate and ritonavir both increase QTc interval. Avoid or Use Alternate Drug.romidepsinhydroxychloroquine sulfate and romidepsin both increase QTc interval. Avoid or Use Alternate Drug.rotavirus oral vaccine, livehydroxychloroquine sulfate decreases effects of rotavirus oral vaccine, live by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.rubella vaccinehydroxychloroquine sulfate decreases effects of rubella vaccine by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.saquinavirhydroxychloroquine sulfate and saquinavir both increase QTc interval. Avoid or Use Alternate Drug.sertralinehydroxychloroquine sulfate and sertraline both increase QTc interval. Avoid or Use Alternate Drug.sevofluranesevoflurane and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.siponimodsiponimod and hydroxychloroquine sulfate both increase QTc interval. Avoid or Use Alternate Drug.sirolimushydroxychloroquine sulfate and sirolimus both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.smallpox (vaccinia) vaccine, livehydroxychloroquine sulfate decreases effects of smallpox (vaccinia) vaccine, live by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.solifenacinhydroxychloroquine sulfate and solifenacin both increase QTc interval. Avoid or Use Alternate Drug.sorafenibhydroxychloroquine sulfate and sorafenib both increase QTc interval. Avoid or Use Alternate Drug.sotalolhydroxychloroquine sulfate and sotalol both increase QTc interval. Avoid or Use Alternate Drug.sunitinibhydroxychloroquine sulfate and sunitinib both increase QTc interval. Avoid or Use Alternate Drug.tacrolimushydroxychloroquine sulfate and tacrolimus both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.hydroxychloroquine sulfate and tacrolimus both increase QTc interval. Avoid or Use Alternate Drug.telavancinhydroxychloroquine sulfate and telavancin both increase QTc interval. Avoid or Use Alternate Drug.temsirolimushydroxychloroquine sulfate and temsirolimus both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.tetanus toxoid adsorbed or fluidhydroxychloroquine sulfate decreases effects of tetanus toxoid adsorbed or fluid by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.tetrabenazinehydroxychloroquine sulfate and tetrabenazine both increase QTc interval. Avoid or Use Alternate Drug.thioridazinehydroxychloroquine sulfate and thioridazine both increase QTc interval. Avoid or Use Alternate Drug.thiothixenehydroxychloroquine sulfate and thiothixene both increase QTc interval. Avoid or Use Alternate Drug.tick-borne encephalitis vaccinehydroxychloroquine sulfate decreases effects of tick-borne encephalitis vaccine by pharmacodynamic antagonism. Contraindicated. Immunosuppressants also increase risk of infection with concomitant live vaccines.tisagenlecleucelhydroxychloroquine sulfate, tisagenlecleucel. Either increases effects of the other by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.tocilizumabtocilizumab and hydroxychloroquine sulfate both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.tofacitinibhydroxychloroquine sulfate, tofacitinib. Either increases toxicity of the other by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.tongkat alihydroxychloroquine sulfate and tongkat ali both increase immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug.toremifenehydroxychloroquine sulfate and toremifene both increase QTc interval. Avoid or Use Alternate Drug.travelers diarrhea and cholera vaccine inactivatedhydroxychloroquine sulfate