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.

Overview Browse Drugs Part D Plans Rankings

Drug Name	Plans Covering	Coverage %	Avg Tier	PA %	2023 Benes
perindopril erbumine 2 MG Oral Tablet perindopril erbumine	4,865	96%	T2	0%	5,136
perindopril erbumine 4 MG Oral Tablet perindopril erbumine	4,865	96%	T2	0%	5,136
200 ACTUAT ipratropium bromide 0.017 MG/ACTUAT Metered Dose Inhaler [Atrovent]	4,865	96%	T3	2.4%	-
24 HR niacin 750 MG Extended Release Oral Tablet niacin	4,865	96%	T3	0.3%	-
{28 (norethindrone 0.35 MG Oral Tablet) } Pack [Errin 28 Day] norethindrone	4,865	96%	T2	0%	-
Microencapsulated potassium chloride 15 MEQ Extended Release Oral Tablet Microencapsulated potassium chloride	4,865	96%	T2	0%	-
perindopril erbumine 8 MG Oral Tablet perindopril erbumine	4,864	96%	T2	0%	5,136
progesterone 100 MG Oral Capsule progesterone	4,864	96%	T2	0%	109
progesterone 200 MG Oral Capsule progesterone	4,864	96%	T2	0%	109
{21 (ethinyl estradiol 0.035 MG / norgestimate 0.25 MG Oral Tablet) / 7 (inert ingredients 1 MG Oral Tablet) } Pack [Estarylla 28 Day] ethinyl estradiol	4,864	96%	T2	0%	-
amlodipine 5 MG / valsartan 160 MG Oral Tablet amlodipine	4,862	96%	T2	0%	11,575,402
amlodipine 10 MG / valsartan 160 MG Oral Tablet amlodipine	4,862	96%	T2	0%	11,575,402
amlodipine 5 MG / valsartan 320 MG Oral Tablet amlodipine	4,862	96%	T2	0%	11,575,402
amlodipine 10 MG / valsartan 320 MG Oral Tablet amlodipine	4,862	96%	T2	0%	11,575,402
{21 (ethinyl estradiol 0.02 MG / norethindrone acetate 1 MG Oral Tablet) / 7 (ferrous fumarate 75 MG Oral Tablet) } Pack [Microgestin Fe 1/20 28 Day] ethinyl estradiol	4,862	96%	T2	0%	-
fluocinolone acetonide 0.1 MG/ML Otic Solution fluocinolone acetonide	4,861	95.9%	T3	0%	80,799
1 ML glatiramer acetate 20 MG/ML Prefilled Syringe [Glatopa] glatiramer acetate	4,860	95.9%	T4	79.5%	3,140
1 ML glatiramer acetate 40 MG/ML Prefilled Syringe [Glatopa] glatiramer acetate	4,860	95.9%	T4	79.5%	3,140
erythromycin 500 MG Oral Tablet erythromycin	4,860	95.9%	T3	0%	1,861
baclofen 5 MG Oral Tablet baclofen	4,859	95.9%	T2	0%	1,303,677
{21 (ethinyl estradiol 0.035 MG / norgestimate 0.25 MG Oral Tablet) / 7 (inert ingredients 1 MG Oral Tablet) } Pack [Mili 28 Day] ethinyl estradiol	4,859	95.9%	T2	0%	-
24 HR diclofenac sodium 100 MG Extended Release Oral Tablet diclofenac sodium	4,858	95.9%	T2	0%	-
dexamethasone 1.5 MG Oral Tablet dexamethasone	4,857	95.9%	T2	0%	850,184
{28 (norethindrone 0.35 MG Oral Tablet) } Pack [Camila 28 Day] norethindrone	4,857	95.9%	T2	0%	-
timolol 20 MG Oral Tablet timolol	4,856	95.8%	T3	0%	6,978
{21 (ethinyl estradiol 0.03 MG / levonorgestrel 0.15 MG Oral Tablet) / 7 (inert ingredients 1 MG Oral Tablet) } Pack [Kurvelo] ethinyl estradiol	4,855	95.8%	T2	0%	935
hydrocortisone 10 MG/ML Topical Cream hydrocortisone	4,851	95.7%	T2	0%	1,257,661
{21 (ethinyl estradiol 0.03 MG / levonorgestrel 0.15 MG Oral Tablet) / 7 (inert ingredients 1 MG Oral Tablet) } Pack [Altavera 28 Day] ethinyl estradiol	4,850	95.7%	T2	0%	-
24 HR diltiazem hydrochloride 420 MG Extended Release Oral Capsule [Tiadylt] diltiazem hydrochloride	4,849	95.7%	T2	0%	-
colestipol hydrochloride 5000 MG Granules for Oral Suspension colestipol hydrochloride	4,848	95.7%	T3	0%	141,803
etodolac 400 MG Oral Tablet etodolac	4,845	95.6%	T2	0%	99,162
etodolac 500 MG Oral Tablet etodolac	4,845	95.6%	T2	0%	99,162
{28 (norethindrone 0.35 MG Oral Tablet) } Pack [Sharobel 28 Day] norethindrone	4,845	95.6%	T2	0%	-
galantamine hydrobromide 4 MG/ML Oral Solution galantamine hydrobromide	4,843	95.6%	T3	0%	24,725
24 HR tolterodine tartrate 2 MG Extended Release Oral Capsule tolterodine tartrate	4,840	95.5%	T3	0.6%	-
24 HR tolterodine tartrate 4 MG Extended Release Oral Capsule tolterodine tartrate	4,840	95.5%	T3	0.6%	-
ketorolac tromethamine 4 MG/ML Ophthalmic Solution ketorolac tromethamine	4,838	95.5%	T2	0%	951,621
{28 (norethindrone 0.35 MG Oral Tablet) } Pack [Deblitane 28 Day] norethindrone	4,836	95.4%	T2	0%	-
estradiol 0.01 MG Vaginal Insert estradiol	4,833	95.4%	T3	0%	1,289,816
etodolac 200 MG Oral Capsule etodolac	4,833	95.4%	T2	0%	99,162
etodolac 300 MG Oral Capsule etodolac	4,833	95.4%	T2	0%	99,162
methotrexate 2.5 MG/ML Oral Solution [Xatmep] methotrexate	4,832	95.4%	T3	83.4%	84
{21 (ethinyl estradiol 0.02 MG / norethindrone acetate 1 MG Oral Tablet) } Pack [Microgestin 1/20 21 Day] ethinyl estradiol	4,832	95.4%	T2	0%	-
cefadroxil 50 MG/ML Oral Suspension cefadroxil	4,830	95.3%	T2	0%	315,336
cefadroxil 100 MG/ML Oral Suspension cefadroxil	4,830	95.3%	T2	0%	315,336
clobetasol propionate 0.5 MG/ML Topical Solution clobetasol propionate	4,829	95.3%	T3	0%	1,250,981
insulin glargine 100 UNT/ML Injectable Solution [Lantus] insulin glargine	4,829	95.3%	T3	0%	418,431
3 ML insulin glargine 100 UNT/ML Pen Injector [Lantus] insulin glargine	4,829	95.3%	T3	0%	279,981
0.5 ML dulaglutide 1.5 MG/ML Auto-Injector [Trulicity] dulaglutide	4,828	95.3%	T3	99.4%	938,731
0.5 ML dulaglutide 3 MG/ML Auto-Injector [Trulicity] dulaglutide	4,828	95.3%	T3	99.4%	938,731
0.5 ML dulaglutide 6 MG/ML Auto-Injector [Trulicity] dulaglutide	4,828	95.3%	T3	99.4%	938,731
0.5 ML dulaglutide 9 MG/ML Auto-Injector [Trulicity] dulaglutide	4,828	95.3%	T3	99.4%	938,731
griseofulvin 125 MG Oral Tablet griseofulvin	4,826	95.2%	T3	0%	1,743
griseofulvin 250 MG Oral Tablet griseofulvin	4,826	95.2%	T3	0%	1,743
{21 (desogestrel 0.15 MG / ethinyl estradiol 0.02 MG Oral Tablet) / 5 (ethinyl estradiol 0.01 MG Oral Tablet) / 2 (inert ingredients 1 MG Oral Tablet) } Pack [Azurette 28 Day] desogestrel	4,825	95.2%	T2	0%	-
{21 (ethinyl estradiol 0.02 MG / norethindrone acetate 1 MG Oral Tablet) / 7 (ferrous fumarate 75 MG Oral Tablet) } Pack [Larin Fe 1/20] ethinyl estradiol	4,824	95.2%	T2	0%	-
{21 (ethinyl estradiol 0.035 MG / ethynodiol diacetate 1 MG Oral Tablet) / 7 (inert ingredients 1 MG Oral Tablet) } Pack [Zovia 1/35E 28 Day] ethinyl estradiol	4,824	95.2%	T2	0%	-
nystatin 100 UNT/MG Topical Powder [Nyamyc] nystatin	4,822	95.2%	T2	0%	1,571,473
bimatoprost 0.1 MG/ML Ophthalmic Solution [Lumigan] bimatoprost	4,822	95.2%	T3	0.3%	347,753
nitisinone 2 MG Oral Capsule nitisinone	4,822	95.2%	T4	68.4%	-
nitisinone 5 MG Oral Capsule nitisinone	4,822	95.2%	T4	68.4%	-
nitisinone 10 MG Oral Capsule nitisinone	4,822	95.2%	T4	68.4%	-
{21 (desogestrel 0.15 MG / ethinyl estradiol 0.02 MG Oral Tablet) / 5 (ethinyl estradiol 0.01 MG Oral Tablet) / 2 (inert ingredients 1 MG Oral Tablet) } Pack [Pimtrea Pack] desogestrel	4,822	95.2%	T2	0%	-
{21 (ethinyl estradiol 0.03 MG / norgestrel 0.3 MG Oral Tablet) / 7 (inert ingredients 1 MG Oral Tablet) } Pack [Low-Ogestrel 28 Day] ethinyl estradiol	4,822	95.2%	T2	0%	-
flurbiprofen 100 MG Oral Tablet flurbiprofen	4,821	95.1%	T2	0%	7,463
memantine hydrochloride 2 MG/ML Oral Solution memantine hydrochloride	4,820	95.1%	T3	56.5%	892,907
{21 (ethinyl estradiol 0.03 MG / norethindrone acetate 1.5 MG Oral Tablet) } Pack [Microgestin 1.5/30 21 Day] ethinyl estradiol	4,820	95.1%	T2	0%	-
clobetasol propionate 0.0005 MG/MG Topical Ointment clobetasol propionate	4,817	95.1%	T3	0%	1,250,981
naloxegol 25 MG Oral Tablet [Movantik] naloxegol	4,817	95.1%	T3	13.5%	73,045
0.375 ML leuprolide acetate 60 MG/ML Prefilled Syringe [Eligard] leuprolide acetate	4,817	95.1%	T3	82.7%	2,942
0.5 ML leuprolide acetate 60 MG/ML Prefilled Syringe [Eligard] leuprolide acetate	4,815	95%	T3	82.9%	2,942
sodium phenylbutyrate 0.94 MG/MG Oral Powder sodium phenylbutyrate	4,815	95%	T4	68.9%	69
potassium chloride 8 MEQ Extended Release Oral Tablet [Klor-Con] potassium chloride	4,814	95%	T2	0%	3,479,756
fosinopril sodium 10 MG / hydrochlorothiazide 12.5 MG Oral Tablet fosinopril sodium	4,814	95%	T2	0%	50,736
fosinopril sodium 20 MG / hydrochlorothiazide 12.5 MG Oral Tablet fosinopril sodium	4,814	95%	T2	0%	50,736
24 HR verapamil hydrochloride 120 MG Extended Release Oral Capsule verapamil hydrochloride	4,814	95%	T2	0%	-
24 HR verapamil hydrochloride 180 MG Extended Release Oral Capsule verapamil hydrochloride	4,814	95%	T2	0%	-
24 HR verapamil hydrochloride 240 MG Extended Release Oral Capsule verapamil hydrochloride	4,814	95%	T2	0%	-
valganciclovir 50 MG/ML Oral Solution valganciclovir	4,812	95%	T4	0%	31,283
griseofulvin 500 MG Oral Tablet griseofulvin	4,812	95%	T3	0%	1,743
{6 (ethinyl estradiol 0.03 MG / levonorgestrel 0.05 MG Oral Tablet) / 10 (ethinyl estradiol 0.03 MG / levonorgestrel 0.125 MG Oral Tablet) / 5 (ethinyl estradiol 0.04 MG / levonorgestrel 0.075 MG Oral Tablet) / 7 (inert ingredients 1 MG Oral Tablet) } Pack [Levonest 28 Day] ethinyl estradiol	4,812	95%	T2	0%	-
{21 (ethinyl estradiol 0.03 MG / norethindrone acetate 1.5 MG Oral Tablet) } Pack [Larin 1.5/30] ethinyl estradiol	4,812	95%	T2	0%	-
0.25 ML leuprolide acetate 30 MG/ML Prefilled Syringe [Eligard] leuprolide acetate	4,810	94.9%	T3	82.6%	2,942
Augmented betamethasone 0.0005 MG/MG Topical Gel Augmented betamethasone	4,810	94.9%	T3	0%	-
{21 (ethinyl estradiol 0.02 MG / levonorgestrel 0.1 MG Oral Tablet) / 7 (inert ingredients 1 MG Oral Tablet) } Pack ethinyl estradiol	4,810	94.9%	T2	0%	-
moexipril hydrochloride 15 MG Oral Tablet moexipril hydrochloride	4,809	94.9%	T2	0%	5,997
moexipril hydrochloride 7.5 MG Oral Tablet moexipril hydrochloride	4,809	94.9%	T2	0%	5,997
1000 ML glucose 50 MG/ML / potassium chloride 0.02 MEQ/ML / sodium chloride 4.5 MG/ML Injection glucose	4,808	94.9%	T3	1.1%	-
potassium chloride 10 MEQ Extended Release Oral Tablet [Klor-Con] potassium chloride	4,807	94.9%	T2	0%	3,479,756
24 HR rivastigmine 0.554 MG/HR Transdermal System rivastigmine	4,806	94.8%	T3	0%	-
24 HR rivastigmine 0.192 MG/HR Transdermal System rivastigmine	4,806	94.8%	T3	0%	-
24 HR rivastigmine 0.396 MG/HR Transdermal System rivastigmine	4,806	94.8%	T3	0%	-
{21 (ethinyl estradiol 0.02 MG / norethindrone acetate 1 MG Oral Tablet) } Pack [Larin 1/20] ethinyl estradiol	4,804	94.8%	T2	0%	-
{21 (ethinyl estradiol 0.02 MG / norethindrone acetate 1 MG Oral Tablet) / 7 (ferrous fumarate 75 MG Oral Tablet) } Pack [Tarina Fe 1/20 28 Day] ethinyl estradiol	4,804	94.8%	T2	0%	-
metformin hydrochloride 500 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] metformin hydrochloride	4,803	94.8%	T3	0.3%	5,918,026
metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] metformin hydrochloride	4,803	94.8%	T3	0.3%	5,918,026
24 HR metformin hydrochloride 500 MG / sitagliptin phosphate 50 MG Extended Release Oral Tablet [Janumet] metformin hydrochloride	4,803	94.8%	T3	0.3%	168,527
24 HR metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Extended Release Oral Tablet [Janumet] metformin hydrochloride	4,803	94.8%	T3	0.3%	168,527
24 HR metformin hydrochloride 1000 MG / sitagliptin phosphate 100 MG Extended Release Oral Tablet [Janumet] metformin hydrochloride	4,803	94.8%	T3	0.3%	168,527
polyethylene glycol 3350 236000 MG / potassium chloride 2970 MG / sodium bicarbonate 6740 MG / sodium chloride 5860 MG / sodium sulfate 22740 MG Powder for Oral Solution [Gavilyte-G] polyethylene glycol	4,800	94.7%	T2	0%	766,658

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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.

Compiled by Plainmedicare Editorial, Health Insurance Editorial Team