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
dextroamphetamine sulfate 1 MG/ML Oral Solution [ProCentra] dextroamphetamine sulfate	8	0.2%	T2	0%	9,950
everolimus 5 MG Oral Tablet [Afinitor] everolimus	8	0.2%	T3	100%	6,726
everolimus 2.5 MG Oral Tablet [Afinitor] everolimus	8	0.2%	T3	100%	6,726
everolimus 7.5 MG Oral Tablet [Afinitor] everolimus	8	0.2%	T3	100%	6,726
ambrisentan 5 MG Oral Tablet [Letairis] ambrisentan	8	0.2%	T3	100%	6,456
ambrisentan 10 MG Oral Tablet [Letairis] ambrisentan	8	0.2%	T3	100%	6,456
tetrabenazine 12.5 MG Oral Tablet [Xenazine] tetrabenazine	8	0.2%	T3	50%	3,523
tetrabenazine 25 MG Oral Tablet [Xenazine] tetrabenazine	8	0.2%	T3	50%	3,523
rufinamide 200 MG Oral Tablet [Banzel] rufinamide	8	0.2%	T3	0%	2,232
rufinamide 400 MG Oral Tablet [Banzel] rufinamide	8	0.2%	T3	0%	2,232
ethosuximide 250 MG Oral Capsule [Zarontin] ethosuximide	8	0.2%	T3	0%	2,145
phenelzine 15 MG Oral Tablet [Nardil] phenelzine	8	0.2%	T3	0%	2,029
maraviroc 150 MG Oral Tablet [Selzentry] maraviroc	8	0.2%	T3	0%	1,674
bexarotene 75 MG Oral Capsule [Targretin] bexarotene	8	0.2%	T3	50%	893
ertugliflozin 5 MG / sitagliptin 100 MG Oral Tablet [Steglujan] ertugliflozin	8	0.2%	T4	100%	722
ertugliflozin 15 MG / sitagliptin 100 MG Oral Tablet [Steglujan] ertugliflozin	8	0.2%	T4	100%	722
zidovudine 100 MG Oral Capsule [Retrovir] zidovudine	8	0.2%	T3	0%	481
zidovudine 10 MG/ML Oral Solution [Retrovir] zidovudine	8	0.2%	T3	0%	481
trifarotene 0.05 MG/ML Topical Cream [Aklief] trifarotene	8	0.2%	T4	100%	155
butoconazole nitrate 20 MG/ML Vaginal Cream [Gynazole-1] butoconazole nitrate	8	0.2%	T4	0%	140
24 HR divalproex sodium 250 MG Extended Release Oral Tablet [Depakote] divalproex sodium	8	0.2%	T3	0%	113
24 HR divalproex sodium 500 MG Extended Release Oral Tablet [Depakote] divalproex sodium	8	0.2%	T3	0%	113
24 HR bupropion hydrochloride 150 MG Extended Release Oral Tablet [Wellbutrin] bupropion hydrochloride	8	0.2%	T3	0%	-
24 HR bupropion hydrochloride 300 MG Extended Release Oral Tablet [Wellbutrin] bupropion hydrochloride	8	0.2%	T3	0%	-
300 ML linezolid 2 MG/ML Injection [Zyvox] linezolid	8	0.2%	T3	50%	-
colchicine 0.12 MG/ML Oral Solution [Gloperba] colchicine	7	0.1%	T2	20%	553,640
somatropin 5 MG/ML Injectable Solution [Zomacton] somatropin	7	0.1%	T2	100%	1,572
somatropin 10 MG/ML Injectable Solution [Zomacton] somatropin	7	0.1%	T2	100%	1,572
carbinoxamine maleate 6 MG Oral Tablet carbinoxamine maleate	7	0.1%	T2	0%	1,400
amylase 39150 UNT / lipase 10440 UNT / protease 39150 UNT Oral Tablet [Viokace] amylase	7	0.1%	T2	20%	637
amylase 78300 UNT / lipase 20880 UNT / protease 78300 UNT Oral Tablet [Viokace] amylase	7	0.1%	T3	20%	637
24 HR naproxen 375 MG Extended Release Oral Tablet naproxen	7	0.1%	T3	0%	-
aprocitentan 12.5 MG Oral Tablet [Tryvio] aprocitentan	7	0.1%	T3	100%	-
nitrofurantoin, macrocrystals 25 MG Oral Capsule [Macrodantin] nitrofurantoin, macrocrystals	6	0.1%	T4	0%	2,638,012
nitrofurantoin, macrocrystals 50 MG Oral Capsule [Macrodantin] nitrofurantoin, macrocrystals	6	0.1%	T4	0%	2,638,012
baclofen 1 MG/ML Oral Solution baclofen	6	0.1%	T2	0%	1,303,677
doxepin hydrochloride 50 MG/ML Topical Cream [Prudoxin] doxepin hydrochloride	6	0.1%	T3	50%	276,316
cholestyramine resin 4000 MG Powder for Oral Suspension [Questran] cholestyramine resin	6	0.1%	T2	0%	186,287
vancomycin 125 MG Oral Capsule [Vancocin] vancomycin	6	0.1%	T4	0%	161,077
vancomycin 250 MG Oral Capsule [Vancocin] vancomycin	6	0.1%	T5	0%	161,077
atropine sulfate 0.025 MG / diphenoxylate hydrochloride 2.5 MG Oral Tablet [Lomotil] atropine sulfate	6	0.1%	T4	100%	109,532
modafinil 100 MG Oral Tablet [Provigil] modafinil	6	0.1%	T5	100%	69,010
modafinil 200 MG Oral Tablet [Provigil] modafinil	6	0.1%	T5	100%	69,010
roflumilast 0.5 MG Oral Tablet [Daliresp] roflumilast	6	0.1%	T3	100%	59,491
cevimeline hydrochloride 30 MG Oral Capsule [Evoxac] cevimeline hydrochloride	6	0.1%	T4	0%	26,123
atovaquone 150 MG/ML Oral Suspension [Mepron] atovaquone	6	0.1%	T5	0%	21,829
ivabradine 5 MG Oral Tablet [Corlanor] ivabradine	6	0.1%	T3	50%	12,415
ivabradine 7.5 MG Oral Tablet [Corlanor] ivabradine	6	0.1%	T3	50%	12,415
voriconazole 40 MG/ML Oral Suspension [Vfend] voriconazole	6	0.1%	T5	100%	11,795
dextroamphetamine sulfate 2.5 MG Oral Tablet [Zenzedi] dextroamphetamine sulfate	6	0.1%	T2	0%	9,950
dextroamphetamine sulfate 7.5 MG Oral Tablet [Zenzedi] dextroamphetamine sulfate	6	0.1%	T2	0%	9,950
dextroamphetamine sulfate 15 MG Oral Tablet [Zenzedi] dextroamphetamine sulfate	6	0.1%	T2	0%	9,950
dextroamphetamine sulfate 20 MG Oral Tablet [Zenzedi] dextroamphetamine sulfate	6	0.1%	T2	0%	9,950
dextroamphetamine sulfate 30 MG Oral Tablet [Zenzedi] dextroamphetamine sulfate	6	0.1%	T2	0%	9,950
gabapentin enacarbil 600 MG Extended Release Oral Tablet [Horizant] gabapentin enacarbil	6	0.1%	T3	0%	6,276
gabapentin enacarbil 300 MG Extended Release Oral Tablet [Horizant] gabapentin enacarbil	6	0.1%	T3	0%	6,276
meperidine hydrochloride 50 MG/ML Injectable Solution [Demerol] meperidine hydrochloride	6	0.1%	T4	100%	5,472
carbidopa 35 MG / levodopa 140 MG Extended Release Oral Capsule [Crexont] carbidopa	6	0.1%	T3	0%	4,842
carbidopa 52.5 MG / levodopa 210 MG Extended Release Oral Capsule [Crexont] carbidopa	6	0.1%	T3	0%	4,842
carbidopa 70 MG / levodopa 280 MG Extended Release Oral Capsule [Crexont] carbidopa	6	0.1%	T3	0%	4,842
carbidopa 87.5 MG / levodopa 350 MG Extended Release Oral Capsule [Crexont] carbidopa	6	0.1%	T3	0%	4,842
podofilox 0.005 MG/MG Topical Gel [Condylox] podofilox	6	0.1%	T4	0%	3,737
dihydroergotamine mesylate 0.725 MG/ACTUAT Metered Dose Nasal Spray [Trudhesa] dihydroergotamine mesylate	6	0.1%	T5	0%	3,239
disopyramide 100 MG Oral Capsule [Norpace] disopyramide	6	0.1%	T4	100%	2,517
disopyramide 150 MG Oral Capsule [Norpace] disopyramide	6	0.1%	T4	100%	2,517
ethosuximide 50 MG/ML Oral Solution [Zarontin] ethosuximide	6	0.1%	T4	0%	2,145
testosterone undecanoate 158 MG Oral Capsule [Jatenzo] testosterone undecanoate	6	0.1%	T4	100%	1,079
testosterone undecanoate 198 MG Oral Capsule [Jatenzo] testosterone undecanoate	6	0.1%	T4	100%	1,079
testosterone undecanoate 237 MG Oral Capsule [Jatenzo] testosterone undecanoate	6	0.1%	T5	100%	1,079
bexarotene 0.01 MG/MG Topical Gel [Targretin] bexarotene	6	0.1%	T3	100%	893
1 ML octreotide 0.05 MG/ML Injection [Sandostatin] octreotide	6	0.1%	T4	100%	28
1 ML octreotide 0.1 MG/ML Injection [Sandostatin] octreotide	6	0.1%	T5	100%	28
1 ML octreotide 0.5 MG/ML Injection [Sandostatin] octreotide	6	0.1%	T4	100%	28
24 HR cyclobenzaprine hydrochloride 15 MG Extended Release Oral Capsule cyclobenzaprine hydrochloride	6	0.1%	T4	100%	-
3 ML liraglutide 6 MG/ML Pen Injector [Victoza] liraglutide	6	0.1%	T4	100%	-
24 HR clonidine hydrochloride 0.1 MG/ML Extended Release Suspension [Onyda] clonidine hydrochloride	6	0.1%	T3	0%	-
24 HR methylphenidate hydrochloride 18 MG Extended Release Oral Tablet [Relexxii] methylphenidate hydrochloride	6	0.1%	T2	0%	-
24 HR methylphenidate hydrochloride 27 MG Extended Release Oral Tablet [Relexxii] methylphenidate hydrochloride	6	0.1%	T2	0%	-
24 HR methylphenidate hydrochloride 36 MG Extended Release Oral Tablet [Relexxii] methylphenidate hydrochloride	6	0.1%	T2	0%	-
24 HR methylphenidate hydrochloride 54 MG Extended Release Oral Tablet [Relexxii] methylphenidate hydrochloride	6	0.1%	T2	0%	-
{1 (sodium phenylbutyrate 2000 MG Granules for Oral Suspension [Olpruva]) } Pack [Olpruva 2 GM Pack] sodium phenylbutyrate	6	0.1%	T3	100%	-
{1 (sodium phenylbutyrate 3000 MG Granules for Oral Suspension [Olpruva]) } Pack [Olpruva 3 GM Pack] sodium phenylbutyrate	6	0.1%	T3	100%	-
{2 (sodium phenylbutyrate 2000 MG Granules for Oral Suspension [Olpruva]) } Pack [Olpruva 4 GM Pack] sodium phenylbutyrate	6	0.1%	T3	100%	-
{1 (sodium phenylbutyrate 2000 MG Granules for Oral Suspension [Olpruva]) / 1 (sodium phenylbutyrate 3000 MG Granules for Oral Suspension [Olpruva]) } Pack [Olpruva 5 GM Pack] sodium phenylbutyrate	6	0.1%	T3	100%	-
{2 (sodium phenylbutyrate 3000 MG Granules for Oral Suspension [Olpruva]) } Pack [Olpruva 6 GM Pack] sodium phenylbutyrate	6	0.1%	T3	100%	-
{1 (sodium phenylbutyrate 3000 MG Granules for Oral Suspension [Olpruva]) / 1 (sodium phenylbutyrate 3670 MG Granules for Oral Suspension [Olpruva]) } Pack [Olpruva 6.67 GM Pack] sodium phenylbutyrate	6	0.1%	T3	100%	-
metformin hydrochloride 625 MG Oral Tablet metformin hydrochloride	5	0.1%	T1	0%	5,918,026
C1 esterase inhibitor (recombinant) 2100 UNT Injection [Ruconest] C1	5	0.1%	T4	33.3%	191
metformin hydrochloride 500 MG / sitagliptin 50 MG Oral Tablet [Zituvimet] metformin hydrochloride	4	0.1%	T3	0%	5,918,026
metformin hydrochloride 1000 MG / sitagliptin 50 MG Oral Tablet [Zituvimet] metformin hydrochloride	4	0.1%	T3	0%	5,918,026
hydrochlorothiazide 800 MG Powder for Oral Suspension [Inzirqo] hydrochlorothiazide	4	0.1%	T3	100%	4,902,174
chlorthalidone 15 MG Oral Tablet [Thalitone] chlorthalidone	4	0.1%	T4	0%	783,324
varenicline 0.5 MG Oral Tablet [Chantix] varenicline	4	0.1%	T4	0%	197,586
varenicline 1 MG Oral Tablet [Chantix] varenicline	4	0.1%	T4	0%	197,586
{56 (varenicline 1 MG Oral Tablet [Chantix]) } Pack [Chantix Continuing Months Of Therapy] varenicline	4	0.1%	T4	0%	136
{11 (varenicline 0.5 MG Oral Tablet [Chantix]) / 42 (varenicline 1 MG Oral Tablet [Chantix]) } Pack [Chantix First Month of Therapy] varenicline	4	0.1%	T4	0%	136
acoltremon 0.03 MG/ML Ophthalmic Solution [Tryptyr] acoltremon	4	0.1%	T3	100%	-
0.8 ML adalimumab-atto 50 MG/ML Prefilled Syringe [Amjevita] adalimumab-atto	4	0.1%	T5	100%	-
0.4 ML adalimumab-atto 50 MG/ML Prefilled Syringe [Amjevita] adalimumab-atto	4	0.1%	T5	100%	-
0.8 ML adalimumab-atto 50 MG/ML Auto-Injector [Amjevita] adalimumab-atto	4	0.1%	T5	100%	-

← Previous Page 55 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.

Compiled by Plainmedicare Editorial, Health Insurance Editorial Team