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
carbamazepine 20 MG/ML Oral Suspension [Tegretol] carbamazepine	92	1.8%	T3	0%	135,324
carbamazepine 200 MG Oral Tablet [Tegretol] carbamazepine	92	1.8%	T3	0%	135,324
12 HR carbamazepine 100 MG Extended Release Oral Tablet [Tegretol] carbamazepine	92	1.8%	T3	0%	3,667
12 HR carbamazepine 200 MG Extended Release Oral Tablet [Tegretol] carbamazepine	92	1.8%	T3	0%	3,667
12 HR carbamazepine 400 MG Extended Release Oral Tablet [Tegretol] carbamazepine	92	1.8%	T3	0%	3,667
fenofibrate 120 MG Oral Tablet fenofibrate	91	1.8%	T3	0%	500,170
{28 (elagolix 300 MG / estradiol 1 MG / norethindrone 0.5 MG Oral Capsule) / 28 (elagolix 300 MG Oral Capsule) } Pack [Oriahnn 28 Day Kit] elagolix	91	1.8%	T4	96.4%	-
1 ML meperidine hydrochloride 50 MG/ML Injection meperidine hydrochloride	90	1.8%	T2	80%	-
doxycycline hyclate 50 MG Oral Tablet doxycycline hyclate	87	1.7%	T2	0%	4,121,486
delafloxacin 450 MG Oral Tablet [Baxdela] delafloxacin	87	1.7%	T4	64.3%	343
sodium phenylbutyrate 0.483 MG/MG Oral Pellet [Pheburane] sodium phenylbutyrate	86	1.7%	T5	100%	69
elbasvir 50 MG / grazoprevir 100 MG Oral Tablet [Zepatier] elbasvir	86	1.7%	T4	100%	23
24 HR amphetamine 3.1 MG Extended Release Oral Tablet amphetamine	86	1.7%	T3	0%	-
24 HR amphetamine 6.3 MG Extended Release Oral Tablet amphetamine	86	1.7%	T3	0%	-
24 HR amphetamine 9.4 MG Extended Release Oral Tablet amphetamine	86	1.7%	T3	0%	-
24 HR amphetamine 12.5 MG Extended Release Oral Tablet amphetamine	86	1.7%	T3	0%	-
24 HR amphetamine 15.7 MG Extended Release Oral Tablet amphetamine	86	1.7%	T3	0%	-
24 HR amphetamine 18.8 MG Extended Release Oral Tablet amphetamine	86	1.7%	T3	0%	-
esomeprazole 2.5 MG Granules for Oral Suspension esomeprazole	84	1.7%	T2	0%	685,529
esomeprazole 5 MG Granules for Oral Suspension esomeprazole	84	1.7%	T2	0%	685,529
prednisolone 15 MG Disintegrating Oral Tablet [Orapred] prednisolone	84	1.7%	T4	50%	20,337
prednisolone 30 MG Disintegrating Oral Tablet [Orapred] prednisolone	84	1.7%	T4	50%	20,337
24 HR bupropion hydrobromide 174 MG Extended Release Oral Tablet [Aplenzin] bupropion hydrobromide	84	1.7%	T4	0%	741
alpha 1-proteinase inhibitor, human 1 MG Injection [Glassia] alpha	84	1.7%	T4	100%	496
mycophenolate mofetil 200 MG/ML Oral Suspension [Cellcept] mycophenolate mofetil	83	1.6%	T3	100%	105,503
oxiconazole 10 MG/ML Topical Cream oxiconazole	83	1.6%	T3	0%	6,339
morphine sulfate 10 MG Extended Release Oral Capsule morphine sulfate	82	1.6%	T3	0%	255,247
morphine sulfate 20 MG Extended Release Oral Capsule morphine sulfate	82	1.6%	T3	0%	255,247
morphine sulfate 30 MG Extended Release Oral Capsule morphine sulfate	82	1.6%	T3	0%	255,247
morphine sulfate 50 MG Extended Release Oral Capsule morphine sulfate	82	1.6%	T3	0%	255,247
morphine sulfate 60 MG Extended Release Oral Capsule morphine sulfate	82	1.6%	T3	0%	255,247
morphine sulfate 80 MG Extended Release Oral Capsule morphine sulfate	82	1.6%	T3	0%	255,247
morphine sulfate 100 MG Extended Release Oral Capsule morphine sulfate	82	1.6%	T3	5.9%	255,247
oxcarbazepine 60 MG/ML Oral Suspension [Trileptal] oxcarbazepine	82	1.6%	T3	0%	195,822
azathioprine 50 MG Oral Tablet [Imuran] azathioprine	82	1.6%	T3	100%	90,745
8 HR carbidopa 23.75 MG / levodopa 95 MG Extended Release Oral Capsule carbidopa	82	1.6%	T3	0%	-
8 HR carbidopa 36.25 MG / levodopa 145 MG Extended Release Oral Capsule carbidopa	82	1.6%	T3	0%	-
8 HR carbidopa 48.75 MG / levodopa 195 MG Extended Release Oral Capsule carbidopa	82	1.6%	T3	0%	-
8 HR carbidopa 61.25 MG / levodopa 245 MG Extended Release Oral Capsule carbidopa	82	1.6%	T3	0%	-
1 ML meperidine hydrochloride 25 MG/ML Injection meperidine hydrochloride	80	1.6%	T2	66.7%	-
1 ML meperidine hydrochloride 100 MG/ML Injection meperidine hydrochloride	80	1.6%	T2	66.7%	-
alogliptin 12.5 MG / metformin hydrochloride 500 MG Oral Tablet alogliptin	77	1.5%	T2	8.3%	17,642
alogliptin 12.5 MG / metformin hydrochloride 1000 MG Oral Tablet alogliptin	77	1.5%	T2	8.3%	17,642
10 ML furosemide 8 MG/ML Cartridge [Furoscix] furosemide	77	1.5%	T3	0%	1,388
methylprednisolone 8 MG Oral Tablet [Medrol] methylprednisolone	76	1.5%	T3	50%	4,135,771
methylprednisolone 4 MG Oral Tablet [Medrol] methylprednisolone	76	1.5%	T3	50%	4,135,771
methylprednisolone 16 MG Oral Tablet [Medrol] methylprednisolone	76	1.5%	T3	50%	4,135,771
digoxin 0.0625 MG Oral Tablet [Lanoxin] digoxin	76	1.5%	T2	0%	392,747
digoxin 0.125 MG Oral Tablet [Lanoxin] digoxin	76	1.5%	T2	0%	392,747
oxcarbazepine 300 MG Oral Tablet [Trileptal] oxcarbazepine	76	1.5%	T3	0%	195,822
oxcarbazepine 150 MG Oral Tablet [Trileptal] oxcarbazepine	76	1.5%	T3	0%	195,822
oxcarbazepine 600 MG Oral Tablet [Trileptal] oxcarbazepine	76	1.5%	T3	0%	195,822
alogliptin 6.25 MG Oral Tablet alogliptin	76	1.5%	T2	9.1%	17,642
alogliptin 12.5 MG Oral Tablet alogliptin	76	1.5%	T2	9.1%	17,642
alogliptin 25 MG Oral Tablet alogliptin	76	1.5%	T2	9.1%	17,642
alogliptin 12.5 MG / pioglitazone 30 MG Oral Tablet alogliptin	76	1.5%	T2	9.1%	17,642
alogliptin 25 MG / pioglitazone 15 MG Oral Tablet alogliptin	76	1.5%	T2	9.1%	17,642
alogliptin 25 MG / pioglitazone 30 MG Oral Tablet alogliptin	76	1.5%	T2	9.1%	17,642
alogliptin 25 MG / pioglitazone 45 MG Oral Tablet alogliptin	76	1.5%	T2	9.1%	17,642
meperidine hydrochloride 50 MG Oral Tablet meperidine hydrochloride	76	1.5%	T2	33.3%	5,472
sotagliflozin 200 MG Oral Tablet [Inpefa] sotagliflozin	76	1.5%	T2	100%	405
sotagliflozin 400 MG Oral Tablet [Inpefa] sotagliflozin	76	1.5%	T2	100%	405
pentamidine isethionate 50 MG/ML Inhalation Solution [NebuPent] pentamidine isethionate	76	1.5%	T3	100%	20
tobramycin 75 MG/ML Inhalation Solution [Bethkis] tobramycin	75	1.5%	T3	100%	195,319
tobramycin 60 MG/ML Inhalation Solution [Tobi] tobramycin	75	1.5%	T3	100%	195,319
tafluprost 0.015 MG/ML Ophthalmic Solution tafluprost	75	1.5%	T3	7.1%	15,313
etodolac 400 MG Oral Tablet [Lodine] etodolac	74	1.5%	T2	0%	99,162
1 ML epoetin alfa 2000 UNT/ML Injection [Epogen] epoetin alfa	72	1.4%	T4	100%	4,041
1 ML epoetin alfa 4000 UNT/ML Injection [Epogen] epoetin alfa	72	1.4%	T4	100%	4,041
1 ML epoetin alfa 3000 UNT/ML Injection [Epogen] epoetin alfa	72	1.4%	T4	100%	4,041
triheptanoin 1000 MG/ML Oral Solution [Dojolvi] triheptanoin	71	1.4%	T3	83.3%	21
delafloxacin 300 MG Injection [Baxdela] delafloxacin	70	1.4%	T4	12.5%	343
fingolimod 0.25 MG Disintegrating Oral Tablet [Tascenso] fingolimod	68	1.3%	T4	100%	2,875
fingolimod 0.5 MG Disintegrating Oral Tablet [Tascenso] fingolimod	68	1.3%	T4	100%	2,875
flurazepam hydrochloride 15 MG Oral Capsule flurazepam hydrochloride	68	1.3%	T2	6.3%	23
24 HR lacosamide 100 MG Extended Release Oral Capsule [Motpoly] lacosamide	68	1.3%	T3	30.8%	-
24 HR lacosamide 150 MG Extended Release Oral Capsule [Motpoly] lacosamide	68	1.3%	T3	30.8%	-
24 HR lacosamide 200 MG Extended Release Oral Capsule [Motpoly] lacosamide	68	1.3%	T3	30.8%	-
epoetin alfa 20000 UNT/ML Injectable Solution [Epogen] epoetin alfa	67	1.3%	T4	100%	24,380
12 HR tapentadol 50 MG Extended Release Oral Tablet [Nucynta] tapentadol	67	1.3%	T4	100%	10,048
12 HR tapentadol 100 MG Extended Release Oral Tablet [Nucynta] tapentadol	67	1.3%	T5	100%	10,048
12 HR tapentadol 150 MG Extended Release Oral Tablet [Nucynta] tapentadol	67	1.3%	T5	100%	10,048
12 HR tapentadol 200 MG Extended Release Oral Tablet [Nucynta] tapentadol	67	1.3%	T5	100%	10,048
12 HR tapentadol 250 MG Extended Release Oral Tablet [Nucynta] tapentadol	67	1.3%	T5	100%	10,048
12 HR carbamazepine 100 MG Extended Release Oral Capsule [Equetro] carbamazepine	67	1.3%	T4	0%	435
12 HR carbamazepine 200 MG Extended Release Oral Capsule [Equetro] carbamazepine	67	1.3%	T4	0%	435
12 HR carbamazepine 300 MG Extended Release Oral Capsule [Equetro] carbamazepine	67	1.3%	T4	0%	435
9 HR methylphenidate 1.11 MG/HR Transdermal System methylphenidate	67	1.3%	T3	22.2%	-
9 HR methylphenidate 1.67 MG/HR Transdermal System methylphenidate	67	1.3%	T3	22.2%	-
9 HR methylphenidate 2.22 MG/HR Transdermal System methylphenidate	67	1.3%	T3	22.2%	-
9 HR methylphenidate 3.33 MG/HR Transdermal System methylphenidate	67	1.3%	T3	22.2%	-
epoetin alfa 10000 UNT/ML Injectable Solution [Epogen] epoetin alfa	66	1.3%	T4	100%	24,380
meperidine hydrochloride 10 MG/ML Oral Solution meperidine hydrochloride	65	1.3%	T1	66.7%	5,472
avibactam 500 MG / ceftazidime 2000 MG Injection [Avycaz] avibactam	65	1.3%	T4	14.3%	887
nerandomilast 9 MG Oral Tablet [Jascayd] nerandomilast	65	1.3%	T4	100%	-
nerandomilast 18 MG Oral Tablet [Jascayd] nerandomilast	65	1.3%	T4	100%	-
doxycycline hyclate 75 MG Delayed Release Oral Tablet doxycycline hyclate	63	1.2%	T2	0%	4,121,486
doxycycline hyclate 150 MG Delayed Release Oral Tablet doxycycline hyclate	63	1.2%	T3	0%	4,121,486
torsemide 40 MG Oral Tablet [Soaanz] torsemide	63	1.2%	T1	0%	675,579
{21 (24 HR lamotrigine 25 MG Extended Release Oral Tablet [Lamictal]) / 7 (24 HR lamotrigine 50 MG Extended Release Oral Tablet [Lamictal]) } Pack [Lamictal XR Blue Patient Titration Kit (for Patients Taking Valproate)] lamotrigine	63	1.2%	T4	100%	5,721

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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