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
rivastigmine 3 MG Oral Capsule
rivastigmine
5,067 100% T2 0% 73,120
rivastigmine 6 MG Oral Capsule
rivastigmine
5,067 100% T2 0% 73,120
rivastigmine 4.5 MG Oral Capsule
rivastigmine
5,067 100% T2 0% 73,120
calcipotriene 0.05 MG/ML Topical Solution
calcipotriene
5,067 100% T3 26.7% 72,274
zonisamide 20 MG/ML Oral Suspension [Zonisade]
zonisamide
5,067 100% T4 47.6% 69,343
zonisamide 25 MG Oral Capsule
zonisamide
5,067 100% T2 7.9% 69,343
zonisamide 50 MG Oral Capsule
zonisamide
5,067 100% T2 7.9% 69,343
zonisamide 100 MG Oral Capsule
zonisamide
5,067 100% T2 7.9% 69,343
brexpiprazole 0.25 MG Oral Tablet [Rexulti]
brexpiprazole
5,067 100% T4 37.9% 66,421
brexpiprazole 0.5 MG Oral Tablet [Rexulti]
brexpiprazole
5,067 100% T4 37.9% 66,421
brexpiprazole 1 MG Oral Tablet [Rexulti]
brexpiprazole
5,067 100% T4 37.9% 66,421
brexpiprazole 2 MG Oral Tablet [Rexulti]
brexpiprazole
5,067 100% T4 37.9% 66,421
brexpiprazole 3 MG Oral Tablet [Rexulti]
brexpiprazole
5,067 100% T4 37.9% 66,421
brexpiprazole 4 MG Oral Tablet [Rexulti]
brexpiprazole
5,067 100% T4 37.9% 66,421
dofetilide 0.125 MG Oral Capsule
dofetilide
5,067 100% T3 0% 65,815
dofetilide 0.25 MG Oral Capsule
dofetilide
5,067 100% T3 0% 65,815
dofetilide 0.5 MG Oral Capsule
dofetilide
5,067 100% T3 0% 65,815
clozapine 150 MG Disintegrating Oral Tablet
clozapine
5,067 100% T3 35.5% 64,860
clozapine 200 MG Disintegrating Oral Tablet
clozapine
5,067 100% T3 35.5% 64,860
clozapine 12.5 MG Disintegrating Oral Tablet
clozapine
5,067 100% T3 35.5% 64,860
clozapine 25 MG Disintegrating Oral Tablet
clozapine
5,067 100% T3 35.5% 64,860
clozapine 100 MG Disintegrating Oral Tablet
clozapine
5,067 100% T3 35.5% 64,860
clozapine 50 MG/ML Oral Suspension [Versacloz]
clozapine
5,067 100% T4 51.2% 64,860
clozapine 25 MG Oral Tablet
clozapine
5,067 100% T2 13.9% 64,860
clozapine 50 MG Oral Tablet
clozapine
5,067 100% T2 13.9% 64,860
clozapine 100 MG Oral Tablet
clozapine
5,067 100% T2 13.9% 64,860
clozapine 200 MG Oral Tablet
clozapine
5,067 100% T2 13.9% 64,860
finerenone 10 MG Oral Tablet [Kerendia]
finerenone
5,067 100% T3 75.2% 63,625
finerenone 20 MG Oral Tablet [Kerendia]
finerenone
5,067 100% T3 75.2% 63,625
budesonide 0.25 MG/ML Inhalation Suspension
budesonide
5,067 100% T3 99.7% 61,841
budesonide 3 MG Delayed Release Oral Capsule
budesonide
5,067 100% T3 15.2% 61,841
neomycin sulfate 500 MG Oral Tablet
neomycin sulfate
5,067 100% T2 0% 59,818
roflumilast 0.5 MG Oral Tablet
roflumilast
5,067 100% T3 29.4% 59,491
sulindac 200 MG Oral Tablet
sulindac
5,067 100% T2 0% 58,059
sulindac 150 MG Oral Tablet
sulindac
5,067 100% T2 0% 58,059
ertapenem 1000 MG Injection
ertapenem
5,067 100% T3 6.1% 56,925
atomoxetine 10 MG Oral Capsule
atomoxetine
5,067 100% T3 0.3% 56,491
atomoxetine 25 MG Oral Capsule
atomoxetine
5,067 100% T3 0.3% 56,491
atomoxetine 18 MG Oral Capsule
atomoxetine
5,067 100% T3 0.3% 56,491
atomoxetine 40 MG Oral Capsule
atomoxetine
5,067 100% T3 0.3% 56,491
atomoxetine 60 MG Oral Capsule
atomoxetine
5,067 100% T3 0.3% 56,491
atomoxetine 80 MG Oral Capsule
atomoxetine
5,067 100% T3 0.3% 56,491
atomoxetine 100 MG Oral Capsule
atomoxetine
5,067 100% T3 0.3% 56,491
pyridostigmine bromide 60 MG Oral Tablet
pyridostigmine bromide
5,067 100% T2 0% 56,300
fosfomycin 3000 MG Granules for Oral Solution
fosfomycin
5,067 100% T3 0% 55,751
vilazodone hydrochloride 10 MG Oral Tablet
vilazodone hydrochloride
5,067 100% T3 14.8% 54,537
vilazodone hydrochloride 20 MG Oral Tablet
vilazodone hydrochloride
5,067 100% T3 14.8% 54,537
vilazodone hydrochloride 40 MG Oral Tablet
vilazodone hydrochloride
5,067 100% T3 14.8% 54,537
trimethoprim 100 MG Oral Tablet
trimethoprim
5,067 100% T2 0% 53,845
cinacalcet 30 MG Oral Tablet
cinacalcet
5,067 100% T3 48.2% 52,976
cinacalcet 60 MG Oral Tablet
cinacalcet
5,067 100% T3 48.2% 52,976
cinacalcet 90 MG Oral Tablet
cinacalcet
5,067 100% T3 48.2% 52,976
phenobarbital 4 MG/ML Oral Solution
phenobarbital
5,067 100% T3 47.6% 52,777
phenobarbital 60 MG Oral Tablet
phenobarbital
5,067 100% T2 47.6% 52,777
phenobarbital 100 MG Oral Tablet
phenobarbital
5,067 100% T2 47.6% 52,777
phenobarbital 15 MG Oral Tablet
phenobarbital
5,067 100% T2 47.6% 52,777
phenobarbital 30 MG Oral Tablet
phenobarbital
5,067 100% T2 47.6% 52,777
phenobarbital 16.2 MG Oral Tablet
phenobarbital
5,067 100% T2 47.6% 52,777
phenobarbital 97.2 MG Oral Tablet
phenobarbital
5,067 100% T2 47.6% 52,777
phenobarbital 32.4 MG Oral Tablet
phenobarbital
5,067 100% T2 47.6% 52,777
phenobarbital 64.8 MG Oral Tablet
phenobarbital
5,067 100% T2 47.6% 52,777
propafenone hydrochloride 150 MG Oral Tablet
propafenone hydrochloride
5,067 100% T2 0% 51,674
propafenone hydrochloride 225 MG Oral Tablet
propafenone hydrochloride
5,067 100% T2 0% 51,674
0.5 ML diphtheria toxoid vaccine, inactivated 4 UNT/ML / tetanus toxoid vaccine, inactivated 10 UNT/ML Injection [Tenivac]
diphtheria toxoid vaccine, inactivated
5,067 100% T2 43.3% 51,546
0.5 ML diphtheria toxoid vaccine, inactivated 4 UNT/ML / tetanus toxoid vaccine, inactivated 10 UNT/ML Prefilled Syringe [Tenivac]
diphtheria toxoid vaccine, inactivated
5,067 100% T2 43.3% 51,546
glycopyrrolate 1 MG Oral Tablet
glycopyrrolate
5,067 100% T2 7.6% 51,524
glycopyrrolate 2 MG Oral Tablet
glycopyrrolate
5,067 100% T2 7.6% 51,524
fluvoxamine maleate 25 MG Oral Tablet
fluvoxamine maleate
5,067 100% T2 0% 51,310
fluvoxamine maleate 100 MG Oral Tablet
fluvoxamine maleate
5,067 100% T2 0% 51,310
fluvoxamine maleate 50 MG Oral Tablet
fluvoxamine maleate
5,067 100% T2 0% 51,310
exemestane 25 MG Oral Tablet
exemestane
5,067 100% T3 0% 49,951
misoprostol 0.2 MG Oral Tablet
misoprostol
5,067 100% T2 0% 47,809
abiraterone acetate 500 MG / niraparib 50 MG Oral Tablet [Akeega]
abiraterone acetate
5,067 100% T4 99.4% 45,661
abiraterone acetate 500 MG / niraparib 100 MG Oral Tablet [Akeega]
abiraterone acetate
5,067 100% T4 99.4% 45,661
bethanechol chloride 5 MG Oral Tablet
bethanechol chloride
5,067 100% T2 0% 44,613
bethanechol chloride 10 MG Oral Tablet
bethanechol chloride
5,067 100% T2 0% 44,613
bethanechol chloride 25 MG Oral Tablet
bethanechol chloride
5,067 100% T2 0% 44,613
bethanechol chloride 50 MG Oral Tablet
bethanechol chloride
5,067 100% T2 0% 44,613
0.5 ML hepatitis A vaccine (inactivated) strain HM175 1440 UNT/ML Prefilled Syringe [Havrix]
hepatitis
5,067 100% T2 0% 43,513
1 ML hepatitis A vaccine (inactivated) strain HM175 1440 UNT/ML Prefilled Syringe [Havrix]
hepatitis
5,067 100% T2 0% 43,513
imipramine hydrochloride 25 MG Oral Tablet
imipramine hydrochloride
5,067 100% T2 27.6% 43,445
imipramine hydrochloride 50 MG Oral Tablet
imipramine hydrochloride
5,067 100% T2 27.6% 43,445
imipramine hydrochloride 10 MG Oral Tablet
imipramine hydrochloride
5,067 100% T2 27.6% 43,445
acarbose 50 MG Oral Tablet
acarbose
5,067 100% T2 0% 42,919
acarbose 100 MG Oral Tablet
acarbose
5,067 100% T2 0% 42,919
acarbose 25 MG Oral Tablet
acarbose
5,067 100% T2 0% 42,919
Niacinamide insulin aspart, human 100 UNT/ML Injectable Solution [Fiasp]
Niacinamide insulin aspart, human
5,067 100% T3 27.6% 42,698
Niacinamide 3 ML insulin aspart, human 100 UNT/ML Pen Injector [Fiasp]
Niacinamide
5,067 100% T3 0% 42,698
Niacinamide 3 ML insulin aspart, human 100 UNT/ML Cartridge [Fiasp]
Niacinamide
5,067 100% T3 0% 42,698
ivermectin 3 MG Oral Tablet
ivermectin
5,067 100% T2 64.2% 40,953
rifampin 600 MG Injection
rifampin
5,067 100% T3 0.6% 37,703
rifampin 150 MG Oral Capsule
rifampin
5,067 100% T2 0% 37,703
rifampin 300 MG Oral Capsule
rifampin
5,067 100% T2 0% 37,703
cromolyn sodium 10 MG/ML Inhalation Solution
cromolyn sodium
5,067 100% T2 99.7% 37,634
cromolyn sodium 20 MG/ML Oral Solution
cromolyn sodium
5,067 100% T3 0.3% 37,634
cromolyn sodium 40 MG/ML Ophthalmic Solution
cromolyn sodium
5,067 100% T2 0% 37,634
chlorpromazine hydrochloride 10 MG Oral Tablet
chlorpromazine hydrochloride
5,067 100% T3 17% 37,336
chlorpromazine hydrochloride 25 MG Oral Tablet
chlorpromazine hydrochloride
5,067 100% T3 17% 37,336
chlorpromazine hydrochloride 50 MG Oral Tablet
chlorpromazine hydrochloride
5,067 100% T3 14.8% 37,336
chlorpromazine hydrochloride 100 MG Oral Tablet
chlorpromazine hydrochloride
5,067 100% T3 14.8% 37,336
← Previous Page 8 of 61 Next →

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.