Drugs starting with I
182 drugs starting with I appear on at least one 2026 stand-alone Medicare Part D formulary. Choose one for its tier, cost and restrictions in every plan.
- IBANDRONATE SODIUM 150 mg Tablet367 plans
- IBRANCE 100 mg CapsulePalbociclib367 plans
- IBRANCE 100 mg Tablet, Film CoatedPalbociclib367 plans
- IBRANCE 125 mg CapsulePalbociclib367 plans
- IBRANCE 125 mg Tablet, Film CoatedPalbociclib367 plans
- IBRANCE 75 mg CapsulePalbociclib367 plans
- IBRANCE 75 mg Tablet, Film CoatedPalbociclib367 plans
- IBU 600 mg TabletIbuprofen367 plans
- IBU 800 mg TabletIbuprofen367 plans
- IBUPROFEN 100 mg/5mL Suspension367 plans
- IBUPROFEN 300 mg TabletOn no Part D formulary
- IBUPROFEN 400 mg Tablet, Film Coated367 plans
- IBUPROFEN 600 mg Tablet, Film Coated367 plans
- IBUPROFEN 800 mg Tablet, Film Coated367 plans
- IBUPROFEN AND FAMOTIDINE 800/26.6 mg Tablet, Film CoatedOn no Part D formulary
- ICATIBANT 10 mg/mL Injection, Solution367 plans
- ICLEVIA KitLevonorgestrel And Ethinyl Estradiol365 plans
- ICLUSIG 10 mg Tablet, Film CoatedPonatinib Hydrochloride367 plans
- ICLUSIG 15 mg Tablet, Film CoatedPonatinib Hydrochloride367 plans
- ICLUSIG 30 mg Tablet, Film CoatedPonatinib Hydrochloride367 plans
- ICLUSIG 45 mg Tablet, Film CoatedPonatinib Hydrochloride367 plans
- ICOSAPENT ETHYL 1 g Capsule135 plans
- ICOSAPENT ETHYL 500 mg Capsule, Liquid Filled135 plans
- IDHIFA 100 mg Tablet, Film CoatedEnasidenib Mesylate367 plans
- IDHIFA 50 mg Tablet, Film CoatedEnasidenib Mesylate367 plans
- ILEVRO 3 mg/mL Suspension/ DropsNepafenac47 plans
- ILUMYA 100 mg/mL Injection, SolutionTildrakizumab-AsmnOn no Part D formulary
- IMATINIB MESYLATE 100 mg Tablet, Film Coated367 plans
- IMATINIB MESYLATE 400 mg Tablet, Film Coated367 plans
- IMBRUVICA 140 mg CapsuleIbrutinib367 plans
- IMBRUVICA 140 mg Tablet, Film CoatedIbrutinib367 plans
- IMBRUVICA 280 mg Tablet, Film CoatedIbrutinib367 plans
- IMBRUVICA 420 mg Tablet, Film CoatedIbrutinib367 plans
- IMBRUVICA 70 mg CapsuleIbrutinib367 plans
- IMBRUVICA 70 mg/mL SuspensionIbrutinib367 plans
- IMIPENEM AND CILASTATIN 250/250 mg/20mL Injection, Powder, For SolutionImipenem And Cilastatin Sodium367 plans
- IMIPENEM AND CILASTATIN 500/500 mg/20mL Injection, Powder, For SolutionImipenem And Cilastatin Sodium367 plans
- IMIPRAMINE HYDROCHLORIDE 10 mg Tablet367 plans
- IMIPRAMINE PAMOATE 100 mg Capsule2 plans
- IMIPRAMINE PAMOATE 125 mg Capsule2 plans
- IMIPRAMINE PAMOATE 150 mg Capsule2 plans
- IMIPRAMINE PAMOATE 75 mg Capsule2 plans
- IMIQUIMOD 12.5 mg/.25g Cream367 plans
- IMIQUIMOD 37.5 mg/g Cream10 plans
- IMITREX 100 mg Tablet, Film CoatedSumatriptanOn no Part D formulary
- IMITREX 25 mg Tablet, Film CoatedSumatriptanOn no Part D formulary
- IMITREX 4 mg/.5mL InjectionSumatriptanOn no Part D formulary
- IMITREX 50 mg Tablet, Film CoatedSumatriptanOn no Part D formulary
- IMITREX 6 mg/.5mL InjectionSumatriptanOn no Part D formulary
- IMKELDI 80 mg/mL SolutionImatinib Oral367 plans
- IMOVAX RABIES KitRabies Virus Strain Pm-1503-3M Antigen (Propiolactone Inactivated) And Water367 plans
- IMURAN 50 mg TabletAzathioprineOn no Part D formulary
- INBRIJA 42 mg CapsuleLevodopa261 plans
- INCASSIA .35 mg TabletNorethindrone367 plans
- INCRELEX 40 mg/4mL Injection, SolutionMecasermin367 plans
- INCRUSE ELLIPTA 62.5 ug Aerosol, PowderUmeclidinium228 plans
- INDAPAMIDE 1.25 mg Tablet, Film Coated367 plans
- INDAPAMIDE 2.5 mg Tablet, Film Coated367 plans
- INDERAL LA 120 mg Capsule, Extended ReleasePropranolol HydrochlorideOn no Part D formulary
- INDERAL LA 160 mg Capsule, Extended ReleasePropranolol HydrochlorideOn no Part D formulary
- INDERAL LA 60 mg Capsule, Extended ReleasePropranolol HydrochlorideOn no Part D formulary
- INDERAL LA 80 mg Capsule, Extended ReleasePropranolol HydrochlorideOn no Part D formulary
- INDOCIN 50 mg SuppositoryIndomethacinOn no Part D formulary
- INDOMETHACIN 25 mg Capsule146 plans
- INDOMETHACIN 25 mg/5mL Suspension2 plans
- INDOMETHACIN 50 mg Capsule146 plans
- INDOMETHACIN 75 mg Capsule, Extended Release43 plans
- INFANRIX 10/25/25/25/8 [iU]/.5mL/ug/.5mL SuspensionDiphtheria And Tetanus Toxoids And Acellular Pertussis Vaccine Adsorbed367 plans
- INGREZZA 40 mg CapsuleValbenazine187 plans
- INGREZZA 60 mg CapsuleValbenazine187 plans
- INGREZZA 80 mg CapsuleValbenazine187 plans
- INGREZZA KitValbenazine187 plans
- INGREZZA SPRINKLE 40 mg CapsuleValbenazine119 plans
- INGREZZA SPRINKLE 60 mg CapsuleValbenazine119 plans
- INGREZZA SPRINKLE 80 mg CapsuleValbenazine119 plans
- INLURIYO 200 mg Tablet, Film CoatedImlunestrant367 plans
- INLYTA 1 mg Tablet, Film CoatedAxitinib367 plans
- INLYTA 5 mg Tablet, Film CoatedAxitinib367 plans
- INNOPRAN XL 120 mg Capsule, Extended ReleasePropranolol HydrochlorideOn no Part D formulary
- INNOPRAN XL 80 mg Capsule, Extended ReleasePropranolol HydrochlorideOn no Part D formulary
- INPEFA 200 mg TabletSotagliflozinOn no Part D formulary
- INPEFA 400 mg TabletSotagliflozinOn no Part D formulary
- INQOVI 100/35 mg Tablet, Film CoatedCedazuridine And Decitabine367 plans
- INREBIC 100 mg CapsuleFedratinib Hydrochloride367 plans
- INSPRA 25 mg Tablet, Film CoatedEplerenoneOn no Part D formulary
- INSPRA 50 mg Tablet, Film CoatedEplerenoneOn no Part D formulary
- INSULIN GLARGINE 100 [iU]/mL Injection, SolutionInsulin Glargine-Yfgn68 plans
- INSULIN GLARGINE 100 [iU]/mL Injection, SolutionInsulin Glargine-Yfgn68 plans
- INSULIN GLARGINE U-300 300 [iU]/mL Injection, SolutionInsulin Glargine68 plans
- INSULIN GLARGINE U-300 MAX 300 [iU]/mL Injection, SolutionInsulin Glargine68 plans
- INSULIN LISPRO 100 [iU]/mL Injection, Solution148 plans
- INSULIN LISPRO JUNIOR KWIKPEN 100 [iU]/mL Injection, SolutionInsulin Lispro45 plans
- INSULIN LISPRO KWIKPEN 100 [iU]/mL Injection, SolutionInsulin Lispro45 plans
- INSULIN LISPRO PROTAMINE AND INSULIN LISPRO INJECTABLE SUSPENSION MIX75/25 KWIKPEN 100 [iU]/mL Injection, SuspensionInsulin Lispro45 plans
- INTELENCE 100 mg TabletEtravirineOn no Part D formulary
- INTELENCE 200 mg TabletEtravirineOn no Part D formulary
- INTELENCE 25 mg TabletEtravirine367 plans
- INTRALIPID 20 g/100mL EmulsionI.V. Fat Emulsion265 plans
- INTRALIPID 30 g/100mL EmulsionI.V. Fat Emulsion241 plans
- INTRAROSA 6.5 mg InsertPrasteroneOn no Part D formulary
- INTROVALE KitLevonorgestrel And Ethinyl Estradiol365 plans
- INVEGA 3 mg Tablet, Extended ReleasePaliperidoneOn no Part D formulary
- INVEGA 6 mg Tablet, Extended ReleasePaliperidoneOn no Part D formulary
- INVEGA 9 mg Tablet, Extended ReleasePaliperidoneOn no Part D formulary
- INVEGA HAFYERA 1092 mg/3.5mL Injection, Suspension, Extended ReleasePaliperidone Palmitate367 plans
- INVEGA HAFYERA 1560 mg/5mL Injection, Suspension, Extended ReleasePaliperidone Palmitate367 plans
- INVEGA SUSTENNA 117 mg/.75mL InjectionPaliperidone Palmitate367 plans
- INVEGA SUSTENNA 156 mg/mL InjectionPaliperidone Palmitate367 plans
- INVEGA SUSTENNA 234 mg/1.5mL InjectionPaliperidone Palmitate367 plans
- INVEGA SUSTENNA 39 mg/.25mL InjectionPaliperidone Palmitate367 plans
- INVEGA SUSTENNA 78 mg/.5mL InjectionPaliperidone Palmitate367 plans
- INVEGA TRINZA 273 mg/.88mL Injection, Suspension, Extended ReleasePaliperidone Palmitate367 plans
- INVEGA TRINZA 410 mg/1.32mL Injection, Suspension, Extended ReleasePaliperidone Palmitate367 plans
- INVEGA TRINZA 546 mg/1.75mL Injection, Suspension, Extended ReleasePaliperidone Palmitate367 plans
- INVEGA TRINZA 819 mg/2.63mL Injection, Suspension, Extended ReleasePaliperidone Palmitate367 plans
- INVOKAMET 150/1000 mg Tablet, Film CoatedCanagliflozin And Metformin Hydrochloride68 plans
- INVOKAMET 150/500 mg Tablet, Film CoatedCanagliflozin And Metformin Hydrochloride68 plans
- INVOKAMET 50/1000 mg Tablet, Film CoatedCanagliflozin And Metformin Hydrochloride68 plans
- INVOKAMET 50/500 mg Tablet, Film CoatedCanagliflozin And Metformin Hydrochloride68 plans
- INVOKAMET XR 150/1000 mg Tablet, Film Coated, Extended ReleaseCanagliflozin And Metformin Hydrochloride68 plans
- INVOKAMET XR 150/500 mg Tablet, Film Coated, Extended ReleaseCanagliflozin And Metformin Hydrochloride68 plans
- INVOKAMET XR 50/1000 mg Tablet, Film Coated, Extended ReleaseCanagliflozin And Metformin Hydrochloride68 plans
- INVOKAMET XR 50/500 mg Tablet, Film Coated, Extended ReleaseCanagliflozin And Metformin Hydrochloride68 plans
- INVOKANA 100 mg Tablet, Film CoatedCanagliflozin68 plans
- INVOKANA 300 mg Tablet, Film CoatedCanagliflozin68 plans
- INZIRQO 10 mg/mL Powder, For SuspensionHydrochlorothiazideOn no Part D formulary
- IPOL 40/8/32 [D'ag'U]/.5mL Injection, SuspensionPoliovirus Type 1 Antigen (Formaldehyde Inactivated), Poliovirus Type 2 Antigen (Formaldehyde Inactivated), And Poliovirus Type 3 Antigen (Formaldehyde Inactivated)367 plans
- IPRATROPIUM BROMIDE .5 mg/2.5mL Solution367 plans
- IPRATROPIUM BROMIDE 21 ug Spray, Metered367 plans
- IPRATROPIUM BROMIDE 42 ug Spray, Metered367 plans
- IPRATROPIUM BROMIDE AND ALBUTEROL SULFATE 2.5/.5 mg/3mL Solution367 plans
- IQIRVO 80 mg Tablet, Film CoatedElafibranor60 plans
- IRBESARTAN 150 mg Tablet367 plans
- IRBESARTAN 300 mg Tablet367 plans
- IRBESARTAN 75 mg Tablet367 plans
- IRBESARTAN AND HYDROCHLOROTHIAZIDE 150/12.5 mg Tablet367 plans
- IRBESARTAN AND HYDROCHLOROTHIAZIDE 300/12.5 mg Tablet367 plans
- IRESSA 250 mg Tablet, CoatedGefitinibOn no Part D formulary
- ISENTRESS 100 mg Granule, For SuspensionRaltegravir367 plans
- ISENTRESS 100 mg Tablet, ChewableRaltegravir367 plans
- ISENTRESS 25 mg Tablet, ChewableRaltegravir367 plans
- ISENTRESS 400 mg Tablet, Film CoatedRaltegravir367 plans
- ISENTRESS 600 mg Tablet, Film CoatedRaltegravir367 plans
- ISIBLOOM KitDesogestrel And Ethinyl Estradiol364 plans
- ISOLYTE P IN DEXTROSE 5/.32/.13/.031/.026 g/100mL Injection, SolutionDextrose, Sodium Acetate, Potassium Chloride, Magnesium Chloride, And Potassium Phosphate, Dibasic114 plans
- ISOLYTE S PH 7.4 .53/.5/.37/.037/.03/.012/.00082 g/100mL Injection, SolutionSodium Chloride, Sodium Gluconate, Sodium Acetate, Potassium Chloride, Magnesium Chloride, Sodium Phosphate, Dibasic, And Potassium Phosphate114 plans
- ISONIAZID 100 mg Tablet367 plans
- ISONIAZID 300 mg Tablet367 plans
- ISONIAZID 50 mg/5mL Solution309 plans
- ISOSORBIDE DINITRATE 10 mg Tablet367 plans
- ISOSORBIDE DINITRATE 20 mg Tablet367 plans
- ISOSORBIDE DINITRATE 30 mg Tablet367 plans
- ISOSORBIDE DINITRATE 40 mg Tablet10 plans
- ISOSORBIDE DINITRATE 5 mg Tablet367 plans
- ISOSORBIDE DINITRATE AND HYDRALAZINE HYDROCHLORIDE 37.5/20 mg Tablet211 plans
- ISOSORBIDE MONONITRATE 10 mg Tablet330 plans
- ISOSORBIDE MONONITRATE 120 mg Tablet, Extended Release367 plans
- ISOSORBIDE MONONITRATE 20 mg Tablet330 plans
- ISOSORBIDE MONONITRATE 30 mg Tablet, Extended Release367 plans
- ISOSORBIDE MONONITRATE 60 mg Tablet, Extended Release367 plans
- ISOTRETINOIN 10 mg Capsule, Liquid Filled367 plans
- ISOTRETINOIN 20 mg Capsule, Liquid Filled367 plans
- ISOTRETINOIN 25 mg Capsule95 plans
- ISOTRETINOIN 30 mg Capsule, Liquid Filled367 plans
- ISOTRETINOIN 35 mg Capsule95 plans
- ISOTRETINOIN 40 mg Capsule, Liquid Filled367 plans
- ISRADIPINE 2.5 mg Capsule80 plans
- ISRADIPINE 5 mg Capsule80 plans
- ISTALOL 5 mg/mL Solution/ DropsTimolol MaleateOn no Part D formulary
- ISTURISA 1 mg Tablet, CoatedOsilodrostat3 plans
- ISTURISA 5 mg Tablet, CoatedOsilodrostat3 plans
- ITOVEBI 3 mg Tablet, Film CoatedInavolisib367 plans
- ITOVEBI 9 mg Tablet, Film CoatedInavolisib367 plans
- ITRACONAZOLE 10 mg/mL SolutionOn no Part D formulary
- ITRACONAZOLE 100 mg Capsule, Coated Pellets367 plans
- IVABRADINE 5 mg Tablet, Film Coated367 plans
- IVABRADINE 7.5 mg Tablet, Film Coated367 plans
- IVERMECTIN 10 mg/g CreamOn no Part D formulary
- IVERMECTIN 3 mg Tablet367 plans
- IVERMECTIN 6 mg Tablet270 plans
- IWILFIN 250 mg TabletEflornithine Hydrochloride367 plans
- IXIARO 6 [arb'U]/.5mL Injection, SuspensionJapanese Encephalitis Vaccine, Inactivated, Adsorbed367 plans
Plan counts are stand-alone Part D plans nationwide. To see one plan’s whole list instead, browse a plan formulary.