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
chlorpromazine hydrochloride 200 MG Oral Tablet
chlorpromazine hydrochloride
5,067 100% T3 14.8% 37,336
lenalidomide 5 MG Oral Capsule
lenalidomide
5,067 100% T4 99.1% 36,967
lenalidomide 10 MG Oral Capsule
lenalidomide
5,067 100% T4 99.1% 36,967
lenalidomide 15 MG Oral Capsule
lenalidomide
5,067 100% T4 99.1% 36,967
lenalidomide 25 MG Oral Capsule
lenalidomide
5,067 100% T4 99.1% 36,967
lenalidomide 20 MG Oral Capsule
lenalidomide
5,067 100% T4 99.1% 36,967
lenalidomide 2.5 MG Oral Capsule
lenalidomide
5,067 100% T4 99.1% 36,967
desmopressin acetate 0.1 MG Oral Tablet
desmopressin acetate
5,067 100% T2 0% 35,693
desmopressin acetate 0.2 MG Oral Tablet
desmopressin acetate
5,067 100% T2 0% 35,693
dronabinol 2.5 MG Oral Capsule
dronabinol
5,067 100% T3 99.7% 34,946
dronabinol 5 MG Oral Capsule
dronabinol
5,067 100% T3 99.7% 34,946
dronabinol 10 MG Oral Capsule
dronabinol
5,067 100% T3 99.7% 34,946
haloperidol decanoate 100 MG/ML Injectable Solution
haloperidol decanoate
5,067 100% T3 14.8% 34,910
valganciclovir 450 MG Oral Tablet
valganciclovir
5,067 100% T2 0% 31,283
rasagiline 1 MG Oral Tablet
rasagiline
5,067 100% T3 0% 30,404
rasagiline 0.5 MG Oral Tablet
rasagiline
5,067 100% T3 0% 30,404
daptomycin 500 MG Injection
daptomycin
5,067 100% T4 0% 29,611
enzalutamide 40 MG Oral Capsule [Xtandi]
enzalutamide
5,067 100% T4 99.4% 28,658
enzalutamide 40 MG Oral Tablet [Xtandi]
enzalutamide
5,067 100% T4 99.4% 28,658
enzalutamide 80 MG Oral Tablet [Xtandi]
enzalutamide
5,067 100% T4 99.4% 28,658
amiloride hydrochloride 5 MG Oral Tablet
amiloride hydrochloride
5,067 100% T2 0% 26,467
clorazepate dipotassium 7.5 MG Oral Tablet
clorazepate dipotassium
5,067 100% T3 43.6% 26,466
clorazepate dipotassium 3.75 MG Oral Tablet
clorazepate dipotassium
5,067 100% T3 43.6% 26,466
clorazepate dipotassium 15 MG Oral Tablet
clorazepate dipotassium
5,067 100% T3 43.6% 26,466
leucovorin 5 MG Oral Tablet
leucovorin
5,067 100% T2 0% 26,004
leucovorin 25 MG Oral Tablet
leucovorin
5,067 100% T3 0% 26,004
dapsone 25 MG Oral Tablet
dapsone
5,067 100% T2 0% 25,257
dapsone 100 MG Oral Tablet
dapsone
5,067 100% T2 0% 25,257
lidocaine hydrochloride 20 MG/ML Mucous Membrane Topical Solution
lidocaine hydrochloride
5,067 100% T2 0% 25,210
typhoid Vi polysaccharide vaccine, S typhi Ty2 strain 0.05 MG/ML Injectable Solution [Typhim VI]
typhoid
5,067 100% T2 0% 24,960
0.5 ML typhoid Vi polysaccharide vaccine, S typhi Ty2 strain 0.05 MG/ML Prefilled Syringe [Typhim VI]
typhoid
5,067 100% T2 0% 24,960
perphenazine 8 MG Oral Tablet
perphenazine
5,067 100% T3 13.9% 24,517
perphenazine 2 MG Oral Tablet
perphenazine
5,067 100% T3 13.9% 24,517
perphenazine 4 MG Oral Tablet
perphenazine
5,067 100% T3 13.9% 24,517
perphenazine 16 MG Oral Tablet
perphenazine
5,067 100% T3 13.9% 24,517
balsalazide disodium 750 MG Oral Capsule
balsalazide disodium
5,067 100% T3 0% 24,237
entacapone 200 MG Oral Tablet
entacapone
5,067 100% T3 0% 24,164
sulfacetamide sodium 100 MG/ML Ophthalmic Solution
sulfacetamide sodium
5,067 100% T2 0% 23,854
entecavir 0.5 MG Oral Tablet
entecavir
5,067 100% T3 0% 23,172
entecavir 1 MG Oral Tablet
entecavir
5,067 100% T3 0% 23,172
piperacillin 4000 MG / tazobactam 500 MG Injection
piperacillin
5,067 100% T3 0% 22,422
atovaquone 150 MG/ML Oral Suspension
atovaquone
5,067 100% T3 34.2% 21,829
atovaquone 250 MG / proguanil hydrochloride 100 MG Oral Tablet
atovaquone
5,067 100% T3 0% 21,829
lumateperone 10.5 MG Oral Capsule [Caplyta]
lumateperone
5,067 100% T4 33.6% 21,724
lumateperone 21 MG Oral Capsule [Caplyta]
lumateperone
5,067 100% T4 33.6% 21,724
lumateperone 42 MG Oral Capsule [Caplyta]
lumateperone
5,067 100% T4 33.6% 21,724
valproic acid 50 MG/ML Oral Solution
valproic acid
5,067 100% T2 0% 20,614
valproic acid 250 MG Oral Capsule
valproic acid
5,067 100% T2 0% 20,614
nintedanib 100 MG Oral Capsule [Ofev]
nintedanib
5,067 100% T4 99.4% 20,444
nintedanib 150 MG Oral Capsule [Ofev]
nintedanib
5,067 100% T4 99.4% 20,444
prednisolone 3 MG/ML Oral Solution
prednisolone
5,067 100% T2 44.8% 20,337
cefazolin 1000 MG Injection
cefazolin
5,067 100% T3 0% 19,643
tranexamic acid 650 MG Oral Tablet
tranexamic acid
5,067 100% T2 0% 19,495
cabergoline 0.5 MG Oral Tablet
cabergoline
5,067 100% T2 0% 19,362
venetoclax 10 MG Oral Tablet [Venclexta]
venetoclax
5,067 100% T3 99.4% 18,792
venetoclax 50 MG Oral Tablet [Venclexta]
venetoclax
5,067 100% T4 99.4% 18,792
venetoclax 100 MG Oral Tablet [Venclexta]
venetoclax
5,067 100% T4 99.4% 18,792
{14 (venetoclax 10 MG Oral Tablet [Venclexta]) / 21 (venetoclax 100 MG Oral Tablet [Venclexta]) / 7 (venetoclax 50 MG Oral Tablet [Venclexta]) } Pack [Venclexta Starting Pack]
venetoclax
5,067 100% T4 99.4% 18,792
clobazam 5 MG Oral Film [Sympazan]
clobazam
5,067 100% T4 83.6% 18,477
clobazam 10 MG Oral Film [Sympazan]
clobazam
5,067 100% T4 83.6% 18,477
clobazam 20 MG Oral Film [Sympazan]
clobazam
5,067 100% T4 83.6% 18,477
clobazam 10 MG Oral Tablet
clobazam
5,067 100% T3 57% 18,477
clobazam 20 MG Oral Tablet
clobazam
5,067 100% T3 57% 18,477
clobazam 2.5 MG/ML Oral Suspension
clobazam
5,067 100% T3 57.3% 18,477
ibrutinib 70 MG/ML Oral Suspension [Imbruvica]
ibrutinib
5,067 100% T4 99.1% 17,100
ibrutinib 140 MG Oral Tablet [Imbruvica]
ibrutinib
5,067 100% T4 99.1% 17,100
ibrutinib 70 MG Oral Capsule [Imbruvica]
ibrutinib
5,067 100% T4 99.1% 17,100
ibrutinib 140 MG Oral Capsule [Imbruvica]
ibrutinib
5,067 100% T4 99.1% 17,100
ibrutinib 280 MG Oral Tablet [Imbruvica]
ibrutinib
5,067 100% T4 99.1% 17,100
ibrutinib 420 MG Oral Tablet [Imbruvica]
ibrutinib
5,067 100% T4 99.1% 17,100
dicloxacillin 250 MG Oral Capsule
dicloxacillin
5,067 100% T2 0% 16,180
dicloxacillin 500 MG Oral Capsule
dicloxacillin
5,067 100% T2 0% 16,180
palbociclib 75 MG Oral Capsule [Ibrance]
palbociclib
5,067 100% T4 99.4% 16,015
palbociclib 100 MG Oral Capsule [Ibrance]
palbociclib
5,067 100% T4 99.4% 16,015
palbociclib 125 MG Oral Capsule [Ibrance]
palbociclib
5,067 100% T4 99.4% 16,015
palbociclib 75 MG Oral Tablet [Ibrance]
palbociclib
5,067 100% T4 99.4% 16,015
palbociclib 100 MG Oral Tablet [Ibrance]
palbociclib
5,067 100% T4 99.4% 16,015
palbociclib 125 MG Oral Tablet [Ibrance]
palbociclib
5,067 100% T4 99.4% 16,015
pimavanserin 10 MG Oral Tablet [Nuplazid]
pimavanserin
5,067 100% T4 99.7% 15,984
pimavanserin 34 MG Oral Capsule [Nuplazid]
pimavanserin
5,067 100% T4 99.7% 15,984
relugolix 120 MG Oral Tablet [Orgovyx]
relugolix
5,067 100% T4 98.2% 15,958
dolutegravir 50 MG Oral Tablet [Tivicay]
dolutegravir
5,067 100% T4 0% 15,932
dolutegravir 50 MG / rilpivirine 25 MG Oral Tablet [Juluca]
dolutegravir
5,067 100% T4 0% 15,932
dolutegravir 50 MG / lamivudine 300 MG Oral Tablet [Dovato]
dolutegravir
5,067 100% T4 0% 15,932
dolutegravir 5 MG Tablet for Oral Suspension [Tivicay]
dolutegravir
5,067 100% T4 0% 15,932
acamprosate calcium 333 MG Delayed Release Oral Tablet
acamprosate calcium
5,067 100% T3 0% 15,765
clomipramine hydrochloride 25 MG Oral Capsule
clomipramine hydrochloride
5,067 100% T3 31.5% 15,618
clomipramine hydrochloride 50 MG Oral Capsule
clomipramine hydrochloride
5,067 100% T3 31.5% 15,618
clomipramine hydrochloride 75 MG Oral Capsule
clomipramine hydrochloride
5,067 100% T3 31.5% 15,618
tenofovir disoproxil fumarate 300 MG Oral Tablet
tenofovir disoproxil fumarate
5,067 100% T3 0% 15,480
tenofovir disoproxil fumarate 0.04 MG/MG Oral Powder [Viread]
tenofovir disoproxil fumarate
5,067 100% T4 0% 15,480
tenofovir disoproxil fumarate 150 MG Oral Tablet [Viread]
tenofovir disoproxil fumarate
5,067 100% T4 0% 15,480
tenofovir disoproxil fumarate 200 MG Oral Tablet [Viread]
tenofovir disoproxil fumarate
5,067 100% T4 0% 15,480
tenofovir disoproxil fumarate 250 MG Oral Tablet [Viread]
tenofovir disoproxil fumarate
5,067 100% T4 0% 15,480
ethambutol hydrochloride 100 MG Oral Tablet
ethambutol hydrochloride
5,067 100% T2 0% 15,217
ethambutol hydrochloride 400 MG Oral Tablet
ethambutol hydrochloride
5,067 100% T2 0% 15,217
probenecid 500 MG Oral Tablet
probenecid
5,067 100% T2 0% 15,132
bacitracin 0.5 UNT/MG Ophthalmic Ointment
bacitracin
5,067 100% T3 0% 14,794
imatinib 100 MG Oral Tablet
imatinib
5,067 100% T3 84.2% 14,613
imatinib 400 MG Oral Tablet
imatinib
5,067 100% T3 84.2% 14,613
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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.