Medicare Part D Drug Coverage List
According to the Centers for Medicare & Medicaid Services (CMS) 2026 Part D formulary data, this list covers 6,046 drugs across Medicare Part D plans, sorted by how broadly each is covered. Under the Inflation Reduction Act, Part D out-of-pocket costs are capped at $2,000 a year in 2026; see our methodology for how coverage breadth is calculated.
Coverage varies by plan and geography. Verify drug coverage with your specific plan before making decisions.
| Drug Name | Plans Covering | Coverage % | Avg Tier | PA % | 2023 Benes |
|---|---|---|---|---|---|
| aripiprazole 5 MG Oral Film [Opipza] aripiprazole | 5,067 | 100% | T4 | 70% | 613,179 |
| aripiprazole 10 MG Oral Film [Opipza] aripiprazole | 5,067 | 100% | T4 | 70% | 613,179 |
| aripiprazole 15 MG Disintegrating Oral Tablet aripiprazole | 5,067 | 100% | T3 | 24.2% | 613,179 |
| aripiprazole 1 MG/ML Oral Solution aripiprazole | 5,067 | 100% | T3 | 15.5% | 613,179 |
| aripiprazole 300 MG Injection [Abilify] aripiprazole | 5,067 | 100% | T4 | 3.6% | 613,179 |
| aripiprazole 400 MG Injection [Abilify] aripiprazole | 5,067 | 100% | T4 | 3.6% | 613,179 |
| aripiprazole 10 MG Disintegrating Oral Tablet aripiprazole | 5,067 | 100% | T3 | 24.2% | 613,179 |
| aripiprazole 2 MG Oral Tablet aripiprazole | 5,067 | 100% | T2 | 13.3% | 613,179 |
| aripiprazole 10 MG Oral Tablet aripiprazole | 5,067 | 100% | T2 | 13.3% | 613,179 |
| aripiprazole 15 MG Oral Tablet aripiprazole | 5,067 | 100% | T2 | 13.3% | 613,179 |
| aripiprazole 20 MG Oral Tablet aripiprazole | 5,067 | 100% | T2 | 13.3% | 613,179 |
| aripiprazole 30 MG Oral Tablet aripiprazole | 5,067 | 100% | T2 | 13.3% | 613,179 |
| lamotrigine 25 MG Oral Tablet lamotrigine | 5,067 | 100% | T1 | 0% | 611,083 |
| lamotrigine 100 MG Oral Tablet lamotrigine | 5,067 | 100% | T1 | 0% | 611,083 |
| lamotrigine 150 MG Oral Tablet lamotrigine | 5,067 | 100% | T1 | 0% | 611,083 |
| lamotrigine 200 MG Oral Tablet lamotrigine | 5,067 | 100% | T1 | 0% | 611,083 |
| lamotrigine 5 MG Tablet for Oral Suspension lamotrigine | 5,067 | 100% | T2 | 0% | 611,083 |
| lamotrigine 25 MG Tablet for Oral Suspension lamotrigine | 5,067 | 100% | T2 | 0% | 611,083 |
| irbesartan 150 MG Oral Tablet irbesartan | 5,067 | 100% | T2 | 0% | 600,969 |
| irbesartan 75 MG Oral Tablet irbesartan | 5,067 | 100% | T2 | 0% | 600,969 |
| irbesartan 300 MG Oral Tablet irbesartan | 5,067 | 100% | T2 | 0% | 600,969 |
| moxifloxacin 400 MG Oral Tablet moxifloxacin | 5,067 | 100% | T2 | 0% | 596,568 |
| hydroxychloroquine sulfate 200 MG Oral Tablet hydroxychloroquine sulfate | 5,067 | 100% | T2 | 0% | 583,911 |
| brimonidine tartrate 2 MG/ML Ophthalmic Solution brimonidine tartrate | 5,067 | 100% | T1 | 0% | 573,214 |
| linaclotide 0.145 MG Oral Capsule [Linzess] linaclotide | 5,067 | 100% | T3 | 0.3% | 565,088 |
| linaclotide 0.29 MG Oral Capsule [Linzess] linaclotide | 5,067 | 100% | T3 | 0.3% | 565,088 |
| linaclotide 0.072 MG Oral Capsule [Linzess] linaclotide | 5,067 | 100% | T3 | 0.3% | 565,088 |
| colchicine 0.5 MG / probenecid 500 MG Oral Tablet colchicine | 5,067 | 100% | T2 | 0% | 553,640 |
| colchicine 0.6 MG Oral Tablet colchicine | 5,067 | 100% | T2 | 0% | 553,640 |
| clotrimazole 10 MG Oral Lozenge clotrimazole | 5,067 | 100% | T2 | 0% | 538,888 |
| clotrimazole 10 MG/ML Topical Cream clotrimazole | 5,067 | 100% | T2 | 0% | 538,888 |
| doxazosin 1 MG Oral Tablet doxazosin | 5,067 | 100% | T2 | 0% | 528,955 |
| doxazosin 2 MG Oral Tablet doxazosin | 5,067 | 100% | T2 | 0% | 528,955 |
| doxazosin 4 MG Oral Tablet doxazosin | 5,067 | 100% | T2 | 0% | 528,955 |
| doxazosin 8 MG Oral Tablet doxazosin | 5,067 | 100% | T2 | 0% | 528,955 |
| lactulose 667 MG/ML Oral Solution lactulose | 5,067 | 100% | T2 | 0% | 526,962 |
| promethazine hydrochloride 12.5 MG Oral Tablet promethazine hydrochloride | 5,067 | 100% | T2 | 62.1% | 523,738 |
| bumetanide 2 MG Oral Tablet bumetanide | 5,067 | 100% | T2 | 0% | 522,275 |
| bumetanide 0.5 MG Oral Tablet bumetanide | 5,067 | 100% | T2 | 0% | 522,275 |
| bumetanide 1 MG Oral Tablet bumetanide | 5,067 | 100% | T2 | 0% | 522,275 |
| olanzapine 10 MG Injection olanzapine | 5,067 | 100% | T3 | 16.1% | 516,737 |
| olanzapine 5 MG Oral Tablet olanzapine | 5,067 | 100% | T2 | 13.9% | 516,737 |
| olanzapine 10 MG Oral Tablet olanzapine | 5,067 | 100% | T2 | 13.9% | 516,737 |
| olanzapine 20 MG Oral Tablet olanzapine | 5,067 | 100% | T2 | 13.9% | 516,737 |
| olanzapine 5 MG Disintegrating Oral Tablet olanzapine | 5,067 | 100% | T3 | 14.2% | 516,737 |
| olanzapine 10 MG Disintegrating Oral Tablet olanzapine | 5,067 | 100% | T3 | 14.2% | 516,737 |
| olanzapine 15 MG Disintegrating Oral Tablet olanzapine | 5,067 | 100% | T3 | 14.2% | 516,737 |
| olanzapine 20 MG Disintegrating Oral Tablet olanzapine | 5,067 | 100% | T3 | 14.2% | 516,737 |
| olanzapine 7.5 MG Oral Tablet olanzapine | 5,067 | 100% | T2 | 13.9% | 516,737 |
| olanzapine 2.5 MG Oral Tablet olanzapine | 5,067 | 100% | T2 | 13.9% | 516,737 |
| olanzapine 15 MG Oral Tablet olanzapine | 5,067 | 100% | T2 | 13.9% | 516,737 |
| fluorouracil 20 MG/ML Topical Solution fluorouracil | 5,067 | 100% | T2 | 0.3% | 500,442 |
| fluorouracil 50 MG/ML Topical Solution fluorouracil | 5,067 | 100% | T2 | 0.3% | 500,442 |
| fluorouracil 50 MG/ML Topical Cream fluorouracil | 5,067 | 100% | T3 | 0% | 500,442 |
| fenofibrate 160 MG Oral Tablet fenofibrate | 5,067 | 100% | T2 | 0% | 500,170 |
| cyclosporine, modified 50 MG Oral Capsule cyclosporine, modified | 5,067 | 100% | T3 | 100% | 492,479 |
| cyclosporine, modified 100 MG Oral Capsule cyclosporine, modified | 5,067 | 100% | T3 | 100% | 492,479 |
| cyclosporine, modified 100 MG/ML Oral Solution cyclosporine, modified | 5,067 | 100% | T3 | 100% | 492,479 |
| cyclosporine 25 MG Oral Capsule cyclosporine | 5,067 | 100% | T3 | 100% | 492,479 |
| cyclosporine 100 MG Oral Capsule cyclosporine | 5,067 | 100% | T3 | 100% | 492,479 |
| cyclosporine, modified 25 MG Oral Capsule cyclosporine, modified | 5,067 | 100% | T3 | 99.7% | 492,479 |
| mometasone furoate 0.001 MG/MG Topical Ointment mometasone furoate | 5,067 | 100% | T2 | 0% | 490,025 |
| mometasone furoate 1 MG/ML Topical Cream mometasone furoate | 5,067 | 100% | T2 | 0% | 490,025 |
| enalapril maleate 10 MG Oral Tablet enalapril maleate | 5,067 | 100% | T2 | 0% | 482,684 |
| enalapril maleate 5 MG Oral Tablet enalapril maleate | 5,067 | 100% | T2 | 0% | 482,684 |
| enalapril maleate 20 MG Oral Tablet enalapril maleate | 5,067 | 100% | T2 | 0% | 482,684 |
| enalapril maleate 2.5 MG Oral Tablet enalapril maleate | 5,067 | 100% | T2 | 0% | 482,684 |
| lidocaine 0.05 MG/MG Medicated Patch lidocaine | 5,067 | 100% | T3 | 93.9% | 481,042 |
| risperidone 25 MG Injection risperidone | 5,067 | 100% | T3 | 8.2% | 478,904 |
| risperidone 37.5 MG Injection risperidone | 5,067 | 100% | T4 | 8.2% | 478,904 |
| risperidone 50 MG Injection risperidone | 5,067 | 100% | T4 | 8.2% | 478,904 |
| risperidone 12.5 MG Injection risperidone | 5,067 | 100% | T3 | 8.2% | 478,904 |
| risperidone 0.25 MG Oral Tablet risperidone | 5,067 | 100% | T2 | 0% | 478,904 |
| risperidone 0.5 MG Oral Tablet risperidone | 5,067 | 100% | T2 | 0% | 478,904 |
| risperidone 1 MG Oral Tablet risperidone | 5,067 | 100% | T2 | 0% | 478,904 |
| risperidone 2 MG Oral Tablet risperidone | 5,067 | 100% | T2 | 0% | 478,904 |
| risperidone 3 MG Oral Tablet risperidone | 5,067 | 100% | T2 | 0% | 478,904 |
| risperidone 4 MG Oral Tablet risperidone | 5,067 | 100% | T2 | 0% | 478,904 |
| risperidone 0.25 MG Disintegrating Oral Tablet risperidone | 5,067 | 100% | T3 | 13.6% | 478,904 |
| risperidone 0.5 MG Disintegrating Oral Tablet risperidone | 5,067 | 100% | T3 | 13.6% | 478,904 |
| risperidone 1 MG Disintegrating Oral Tablet risperidone | 5,067 | 100% | T3 | 13.6% | 478,904 |
| risperidone 2 MG Disintegrating Oral Tablet risperidone | 5,067 | 100% | T3 | 13.6% | 478,904 |
| risperidone 3 MG Disintegrating Oral Tablet risperidone | 5,067 | 100% | T3 | 13.6% | 478,904 |
| risperidone 4 MG Disintegrating Oral Tablet risperidone | 5,067 | 100% | T3 | 13.6% | 478,904 |
| risperidone 1 MG/ML Oral Solution risperidone | 5,067 | 100% | T2 | 13.3% | 478,904 |
| divalproex sodium 125 MG Delayed Release Oral Tablet divalproex sodium | 5,067 | 100% | T2 | 0% | 448,623 |
| divalproex sodium 250 MG Delayed Release Oral Tablet divalproex sodium | 5,067 | 100% | T2 | 0% | 448,623 |
| divalproex sodium 500 MG Delayed Release Oral Tablet divalproex sodium | 5,067 | 100% | T2 | 0% | 448,623 |
| divalproex sodium 125 MG Delayed Release Oral Capsule divalproex sodium | 5,067 | 100% | T2 | 0% | 448,623 |
| insulin aspart, human 100 UNT/ML Injectable Solution [NovoLog] insulin aspart, human | 5,067 | 100% | T3 | 28.2% | 418,431 |
| terbinafine 250 MG Oral Tablet terbinafine | 5,067 | 100% | T1 | 15.8% | 415,181 |
| anastrozole 1 MG Oral Tablet anastrozole | 5,067 | 100% | T1 | 0% | 409,158 |
| betamethasone 0.5 MG/ML / clotrimazole 10 MG/ML Topical Cream betamethasone | 5,067 | 100% | T2 | 0% | 407,711 |
| metoclopramide 10 MG Oral Tablet metoclopramide | 5,067 | 100% | T1 | 0% | 402,098 |
| metoclopramide 5 MG Oral Tablet metoclopramide | 5,067 | 100% | T1 | 0% | 402,098 |
| digoxin 0.125 MG Oral Tablet digoxin | 5,067 | 100% | T2 | 0% | 392,747 |
| digoxin 0.25 MG Oral Tablet digoxin | 5,067 | 100% | T2 | 2.4% | 392,747 |
| ramipril 2.5 MG Oral Capsule ramipril | 5,067 | 100% | T2 | 0% | 388,707 |
| ramipril 5 MG Oral Capsule ramipril | 5,067 | 100% | T2 | 0% | 388,707 |
| ramipril 10 MG Oral Capsule ramipril | 5,067 | 100% | T2 | 0% | 388,707 |
Source: CMS Quarterly Prescription Drug Plan Formulary PUF 2026. 6,046 drugs with RXCUI identifiers from NLM RxNorm. Coverage percentages based on 0 active Part D plans.