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
succimer 100 MG Oral Capsule [Chemet] succimer	3,507	69.2%	T4	14.1%	24
dibasic potassium phosphate 0.26 MG/ML / glucose 50 MG/ML / magnesium chloride 0.00373 MEQ/ML / potassium chloride 0.00174 MEQ/ML / sodium acetate 0.039 MEQ/ML Injectable Solution [Isolyte P] dibasic potassium phosphate	3,507	69.2%	T3	1.9%	-
1 ML galcanezumab-gnlm 100 MG/ML Prefilled Syringe [Emgality] galcanezumab-gnlm	3,506	69.2%	T3	98.5%	-
letermovir 120 MG Oral Pellet [Prevymis] letermovir	3,505	69.2%	T4	76.1%	2,391
cefotetan 1000 MG Injection cefotetan	3,500	69.1%	T3	0%	20
cefotetan 2000 MG Injection cefotetan	3,496	69%	T3	0%	20
methylphenidate hydrochloride 1 MG/ML Oral Solution methylphenidate hydrochloride	3,493	68.9%	T3	34.1%	108,959
benzoyl peroxide 0.05 MG/MG / erythromycin 0.03 MG/MG Topical Gel benzoyl peroxide	3,491	68.9%	T3	0%	465
3 ML icatibant 10 MG/ML Prefilled Syringe [Sajazir] icatibant	3,480	68.7%	T4	99%	43
calcium chloride 0.23 MEQ/ML / magnesium chloride 0.53 MEQ/ML / potassium chloride 0.1 MEQ/ML / sodium acetate 1.48 MEQ/ML / sodium chloride 0.27 MEQ/ML Injectable Solution calcium chloride	3,477	68.6%	T3	73.4%	108,459
{7 (ethinyl estradiol 0.01 MG Oral Tablet) / 84 (ethinyl estradiol 0.03 MG / levonorgestrel 0.15 MG Oral Tablet) } Pack [Jaimiess 91 Day] ethinyl estradiol	3,477	68.6%	T2	0%	-
ivacaftor 50 MG Oral Granules [Kalydeco] ivacaftor	3,464	68.4%	T4	99.7%	91
ivacaftor 75 MG Oral Granules [Kalydeco] ivacaftor	3,464	68.4%	T4	99.7%	91
ivacaftor 25 MG Oral Granules [Kalydeco] ivacaftor	3,464	68.4%	T4	99.7%	91
0.67 ML anakinra 149 MG/ML Prefilled Syringe [Kineret] anakinra	3,460	68.3%	T4	99.1%	770
100 ML potassium chloride 0.1 MEQ/ML Injection potassium chloride	3,455	68.2%	T3	1.3%	-
phenytoin sodium 200 MG Extended Release Oral Capsule [Phenytek] phenytoin sodium	3,453	68.1%	T2	0%	11
phenytoin sodium 300 MG Extended Release Oral Capsule [Phenytek] phenytoin sodium	3,453	68.1%	T2	0%	11
{7 (ethinyl estradiol 0.01 MG Oral Tablet) / 84 (ethinyl estradiol 0.02 MG / levonorgestrel 0.1 MG Oral Tablet) } Pack [CamreseLo 91 Day] ethinyl estradiol	3,452	68.1%	T3	0%	-
hydroxyzine pamoate 100 MG Oral Capsule hydroxyzine pamoate	3,446	68%	T2	28.2%	419,149
ivacaftor 188 MG / lumacaftor 150 MG Oral Granules [ORKAMBI] ivacaftor	3,445	68%	T4	99.2%	91
ivacaftor 125 MG / lumacaftor 100 MG Oral Granules [ORKAMBI] ivacaftor	3,445	68%	T4	99.2%	91
ivacaftor 94 MG / lumacaftor 75 MG Oral Granules [ORKAMBI] ivacaftor	3,443	67.9%	T4	99.2%	91
ciclopirox 10 MG/ML Medicated Shampoo ciclopirox	3,440	67.9%	T2	0%	397,306
abiraterone acetate 500 MG Oral Tablet abiraterone acetate	3,440	67.9%	T4	95.2%	45,661
colesevelam hydrochloride 3750 MG Powder for Oral Suspension colesevelam hydrochloride	3,436	67.8%	T3	0%	66,749
1 ML epoetin alfa 2000 UNT/ML Injection [Procrit] epoetin alfa	3,436	67.8%	T3	98%	24,380
1 ML epoetin alfa 3000 UNT/ML Injection [Procrit] epoetin alfa	3,436	67.8%	T3	98%	24,380
1 ML epoetin alfa 4000 UNT/ML Injection [Procrit] epoetin alfa	3,436	67.8%	T3	98%	24,380
1 ML epoetin alfa 10000 UNT/ML Injection [Procrit] epoetin alfa	3,436	67.8%	T3	98%	24,380
epoetin alfa 20000 UNT/ML Injectable Solution [Procrit] epoetin alfa	3,436	67.8%	T4	98%	24,380
1 ML epoetin alfa 40000 UNT/ML Injection [Procrit] epoetin alfa	3,436	67.8%	T4	98%	24,380
brimonidine tartrate 2 MG/ML / timolol 5 MG/ML Ophthalmic Solution [Combigan] brimonidine tartrate	3,422	67.5%	T3	0%	573,214
potassium chloride 20 MEQ Powder for Oral Solution [Klor-Con] potassium chloride	3,414	67.4%	T3	0%	3,479,756
fluocinolone acetonide 0.1 MG/ML Otic Solution [Flac] fluocinolone acetonide	3,411	67.3%	T3	0%	80,799
ivacaftor 13.4 MG Oral Granules [Kalydeco] ivacaftor	3,407	67.2%	T4	99.7%	91
ivacaftor 5.8 MG Oral Granules [Kalydeco] ivacaftor	3,407	67.2%	T4	99.7%	91
triamcinolone acetonide 5 MG/ML Topical Cream [Triderm] triamcinolone acetonide	3,398	67.1%	T2	0%	3,621,019
magnesium chloride 0.00148 MEQ/ML / monobasic potassium phosphate 0.0082 MG/ML / potassium chloride 0.00497 MEQ/ML / sodium acetate 0.0272 MEQ/ML / sodium chloride 0.0906 MEQ/ML / sodium gluconate 5 MG/ML / sodium phosphate, dibasic 0.12 MG/ML Injectable Solution [Isolyte S] magnesium chloride	3,397	67%	T3	9.3%	-
dexamethasone 0.001 MG/MG / tobramycin 0.003 MG/MG Ophthalmic Ointment [Tobradex] dexamethasone	3,389	66.9%	T3	0%	850,184
dutasteride 0.5 MG / tamsulosin hydrochloride 0.4 MG Oral Capsule dutasteride	3,384	66.8%	T3	0%	224,682
{28 (ethinyl estradiol 0.0025 MG / norethindrone acetate 0.5 MG Oral Tablet) } Pack ethinyl estradiol	3,377	66.6%	T3	3.3%	-
hydralazine hydrochloride 37.5 MG / isosorbide dinitrate 20 MG Oral Tablet hydralazine hydrochloride	3,373	66.6%	T3	0%	1,411,222
120 ACTUAT albuterol 0.09 MG/ACTUAT / budesonide 0.08 MG/ACTUAT Metered Dose Inhaler [Airsupra]	3,367	66.4%	T3	1.4%	1,487
glecaprevir 100 MG / pibrentasvir 40 MG Oral Tablet [Mavyret] glecaprevir	3,364	66.4%	T4	99.6%	8,771
acetaminophen 325 MG / tramadol hydrochloride 37.5 MG Oral Tablet acetaminophen	3,362	66.4%	T2	1%	156
bazedoxifene 20 MG / estrogens, conjugated (USP) 0.45 MG Oral Tablet [Duavee] bazedoxifene	3,361	66.3%	T3	15.7%	-
ethinyl estradiol 0.005 MG / norethindrone acetate 1 MG Oral Tablet [Jinteli] ethinyl estradiol	3,357	66.3%	T3	4.7%	3,693
{7 (ethinyl estradiol 0.01 MG Oral Tablet) / 84 (ethinyl estradiol 0.02 MG / levonorgestrel 0.1 MG Oral Tablet) } Pack [Lojaimiess 91 Day] ethinyl estradiol	3,345	66%	T2	0%	-
erythromycin 0.02 MG/MG Topical Gel erythromycin	3,342	66%	T2	0%	1,861
ethinyl estradiol 0.005 MG / norethindrone acetate 1 MG Oral Tablet [Fyavolv] ethinyl estradiol	3,341	65.9%	T3	3.8%	3,693
potassium chloride 15 MEQ Extended Release Oral Tablet potassium chloride	3,337	65.9%	T2	0%	3,479,756
levodopa 42 MG Inhalation Powder [Inbrija] levodopa	3,337	65.9%	T4	97.9%	2,486
30 ACTUAT umeclidinium 0.0625 MG/ACTUAT Dry Powder Inhaler [Incruse]	3,336	65.8%	T3	0%	-
rivaroxaban 1 MG/ML Oral Suspension [Xarelto] rivaroxaban	3,330	65.7%	T3	0%	1,324,165
pirfenidone 534 MG Oral Tablet pirfenidone	3,328	65.7%	T4	99.5%	7,776
120 ACTUAT fluticasone propionate 0.045 MG/ACTUAT / salmeterol 0.021 MG/ACTUAT Metered Dose Inhaler [Advair]	3,325	65.6%	T3	0%	-
120 ACTUAT fluticasone propionate 0.115 MG/ACTUAT / salmeterol 0.021 MG/ACTUAT Metered Dose Inhaler [Advair]	3,325	65.6%	T3	0%	-
120 ACTUAT fluticasone propionate 0.23 MG/ACTUAT / salmeterol 0.021 MG/ACTUAT Metered Dose Inhaler [Advair]	3,325	65.6%	T3	0%	-
clindamycin 10 MG/ML Medicated Pad clindamycin	3,320	65.5%	T2	0%	8,722
fenofibric acid 135 MG Delayed Release Oral Capsule fenofibric acid	3,317	65.5%	T2	0%	40,800
ethinyl estradiol 0.0025 MG / norethindrone acetate 0.5 MG Oral Tablet [Fyavolv] ethinyl estradiol	3,314	65.4%	T3	3.4%	3,693
empagliflozin 5 MG / metformin hydrochloride 500 MG Oral Tablet [Synjardy] empagliflozin	3,307	65.3%	T3	0%	1,882,768
fenofibrate 43 MG Oral Capsule fenofibrate	3,307	65.3%	T2	0%	500,170
estrogens, conjugated (USP) 0.3 MG Oral Tablet [Premarin] estrogens,	3,305	65.2%	T3	8.2%	241,518
estrogens, conjugated (USP) 0.45 MG Oral Tablet [Premarin] estrogens,	3,305	65.2%	T3	8.2%	241,518
estrogens, conjugated (USP) 0.625 MG Oral Tablet [Premarin] estrogens,	3,305	65.2%	T3	8.2%	241,518
estrogens, conjugated (USP) 0.9 MG Oral Tablet [Premarin] estrogens,	3,305	65.2%	T3	8.2%	241,518
estrogens, conjugated (USP) 1.25 MG Oral Tablet [Premarin] estrogens,	3,305	65.2%	T3	8.2%	241,518
fenofibric acid 45 MG Delayed Release Oral Capsule fenofibric acid	3,305	65.2%	T2	0%	40,800
24 HR lamotrigine 50 MG Extended Release Oral Tablet lamotrigine	3,305	65.2%	T3	0%	-
empagliflozin 12.5 MG / metformin hydrochloride 1000 MG Oral Tablet [Synjardy] empagliflozin	3,303	65.2%	T3	0%	1,882,768
empagliflozin 5 MG / metformin hydrochloride 1000 MG Oral Tablet [Synjardy] empagliflozin	3,303	65.2%	T3	0%	1,882,768
empagliflozin 12.5 MG / metformin hydrochloride 500 MG Oral Tablet [Synjardy] empagliflozin	3,303	65.2%	T3	0%	1,882,768
24 HR empagliflozin 10 MG / metformin hydrochloride 1000 MG Extended Release Oral Tablet [Synjardy] empagliflozin	3,303	65.2%	T3	0%	35,768
24 HR empagliflozin 5 MG / metformin hydrochloride 1000 MG Extended Release Oral Tablet [Synjardy] empagliflozin	3,303	65.2%	T3	0%	35,768
24 HR empagliflozin 25 MG / metformin hydrochloride 1000 MG Extended Release Oral Tablet [Synjardy] empagliflozin	3,303	65.2%	T3	0%	35,768
24 HR empagliflozin 12.5 MG / metformin hydrochloride 1000 MG Extended Release Oral Tablet [Synjardy] empagliflozin	3,303	65.2%	T3	0%	35,768
24 HR lamotrigine 100 MG Extended Release Oral Tablet lamotrigine	3,302	65.2%	T3	0%	-
letermovir 20 MG Oral Pellet [Prevymis] letermovir	3,299	65.1%	T5	70.5%	2,391
desonide 0.0005 MG/MG Topical Ointment desonide	3,289	64.9%	T3	0%	101,247
24 HR lamotrigine 300 MG Extended Release Oral Tablet lamotrigine	3,285	64.8%	T3	0%	-
24 HR lamotrigine 25 MG Extended Release Oral Tablet lamotrigine	3,285	64.8%	T3	0%	-
24 HR lamotrigine 200 MG Extended Release Oral Tablet lamotrigine	3,285	64.8%	T3	0%	-
500 ML olive oil 160 MG/ML / soybean oil 40 MG/ML Injection [Clinolipid] olive oil	3,283	64.8%	T3	98.9%	1,107
methylphenidate hydrochloride 2 MG/ML Oral Solution methylphenidate hydrochloride	3,278	64.7%	T3	36.4%	108,959
perfluorohexyloctane 1340 MG/ML Ophthalmic Solution [Miebo] perfluorohexyloctane	3,257	64.3%	T3	17.7%	6,324
glecaprevir 50 MG / pibrentasvir 20 MG Oral Pellet [Mavyret] glecaprevir	3,256	64.3%	T4	99.6%	8,771
84 HR estradiol 0.00104 MG/HR Transdermal System [Lyllana] estradiol	3,251	64.2%	T3	1.5%	5,567
84 HR estradiol 0.00156 MG/HR Transdermal System [Lyllana] estradiol	3,251	64.2%	T3	1.5%	5,567
84 HR estradiol 0.00208 MG/HR Transdermal System [Lyllana] estradiol	3,251	64.2%	T3	1.5%	5,567
84 HR estradiol 0.00313 MG/HR Transdermal System [Lyllana] estradiol	3,251	64.2%	T3	1.5%	5,567
84 HR estradiol 0.00417 MG/HR Transdermal System [Lyllana] estradiol	3,251	64.2%	T3	1.5%	5,567
acetaminophen 325 MG / hydrocodone bitartrate 2.5 MG Oral Tablet acetaminophen	3,248	64.1%	T2	3.1%	156
cefixime 20 MG/ML Oral Suspension cefixime	3,245	64%	T3	0%	11,613
cefixime 40 MG/ML Oral Suspension cefixime	3,245	64%	T3	0%	11,613
Pediatric 1 ML leuprolide acetate 7.5 MG/ML Prefilled Syringe [Lupron] Pediatric	3,243	64%	T4	92.5%	-
acetaminophen 21.7 MG/ML / hydrocodone bitartrate 0.67 MG/ML Oral Solution acetaminophen	3,238	63.9%	T3	0%	156
24 HR paroxetine hydrochloride 12.5 MG Extended Release Oral Tablet paroxetine hydrochloride	3,228	63.7%	T3	26.5%	-
24 HR paroxetine hydrochloride 25 MG Extended Release Oral Tablet paroxetine hydrochloride	3,228	63.7%	T3	26.5%	-

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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