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May 2024 Drug List Updates: Thirty-seven (37) new generic drugs added to many Medicare Part D plan formularies.

Monthly Formulary changes · published Jun 2, 2024

As you may know, Medicare Part D prescription drug plans update their plan formularies (drug lists) throughout the plan year and the May 2024 Medicare Part D formulary updates included fifty-two (52) new drugs, thirty-seven (37) of which are generics - with a total of seventy-five (75) new generic equivalents (variations of manufacturer, drug-strength, and packaging).

Of the thirty-seven (37) new generic medications, ten (10) are newly-introduced generic drugs.  These new generic drugs include:
  • AMETHIA [Simpesse®],
  • BISOPROLOL FUMARATE [Zebeta®],
  • BROMFENAC SOD [BromSite®],
  • CETIRIZINE HCL [Zyrtec Syrup®],
  • CYCLOSERINE [Seromycin®],
  • DEFLAZACORT [Emflaza®],
  • HEATHER [Sharobel 28-Day®],
  • LOTEPREDNOL ETABONATE [Alrex®],
  • MIFEPRISTONE [Korlym®], and
  • TRIENTINE HCL®].

Please note that these new generic drugs are not available on all Medicare Part D (PDP) or Medicare Advantage plan (MAPD) formularies.  You can review the chart below to see the (often limited) number of plan formularies that now include these drugs.


Generic Drug Equivalent [Brand-Name Drug]

Number of
PDP
Formularies*

Number of
MAPD
Formularies*

ADALIMUMAB-AACF(CF) PEN 40 MG PEN IJ KIT [Idacio] 2 27
ALYQ 20 MG TABLET [Cialis] 28 252
AMETHIA 0.15-0.03-0.01 MG TABLET TBDSPK 3MO [Simpesse] 27 217
AMPICILLIN-SULBACTAM 15 GM VIAL [Unasyn] 38 339
AZATHIOPRINE 50 MG TABLET [Imuran] 54 369
BETAMETHASONE DP AUG 0.05% OINTMENT [Diprolene] 54 364
BISOPROLOL FUMARATE 10 MG TABLET [Zebeta] 54 368
BISOPROLOL FUMARATE 5 MG TABLET [Zebeta] 54 368
BISOPROLOL-HCTZ 2.5-6.25 MG TABLET [Ziac] 52 368
BISOPROLOL-HCTZ 5-6.25 MG TABLET [Ziac] 52 368
BRIMONIDINE 0.2% EYE DROPS [Alphagan] 54 369
BROMFENAC SOD 0.075% EYE DROPS [BromSite] 2 85
BUPRENORPHINE 10 MCG/HR PATCH [Butrans] 15 216
BUPRENORPHINE 15 MCG/HR PATCH [Butrans] 15 216
BUPRENORPHINE 2 MG TABLET SUBLIGUAL [Subutex] 54 369
BUPRENORPHINE 20 MCG/HR PATCH [Butrans] 15 216
CEFUROXIME AXETIL 500 MG TABLET [Ceftin] 54 369
CETIRIZINE HCL 1 MG/ML SOLUTION [Zyrtec Syrup] 28 216
CICLOPIROX 0.77% CREAM (G) [Loprox] 53 368
CIPROFLOXACIN 0.3% EYE DROPS [Ciloxan] 54 369
CLONIDINE HCL ER 0.17 MG TABLET 24H 0 4
CLORAZEPATE 7.5 MG TABLET [Tranxene T-Tab] 54 368
CLOTRIMAZOLE 10 MG TROCHE [Mycelex Troche] 54 369
COLCHICINE 0.6 MG TABLET [Colcrys] 53 367
CYCLOSERINE 250 MG CAPSULE [Seromycin] 17 91
DABIGATRAN ETEXILATE 110 MG CAPSULE [Pradaxa] 32 170
DABIGATRAN ETEXILATE 150 MG CAPSULE [Pradaxa] 44 269
DABIGATRAN ETEXILATE 75 MG CAPSULE [Pradaxa] 44 269
DALFAMPRIDINE ER 10 MG TABLET 12H [Ampyra] 54 369
DEFLAZACORT 18 MG TABLET [Emflaza] 0 15
DEFLAZACORT 30 MG TABLET [Emflaza] 0 15
DEFLAZACORT 36 MG TABLET [Emflaza] 0 15
DEFLAZACORT 6 MG TABLET [Emflaza] 0 15
DESVENLAFAXINE SUCCNT ER 100MG TABLET 24H [Pristiq] 54 369
DEXTROAMP-AMPHET ER 20 MG CAPSULE 24H [Adderall XR] 50 334
DEXTROAMP-AMPHET ER 30 MG CAPSULE 24H [Adderall XR] 50 334
DOFETILIDE 250 MCG CAPSULE [Tikosyn] 54 369
DOFETILIDE 500 MCG CAPSULE [Tikosyn] 54 369
EC-NAPROXEN DR 500 MG TABLET [EC-Naprosyn] 50 328
ECONAZOLE NITRATE 1% CREAM (G) [Spectazole] 30 281
ENOXAPARIN 40 MG/0.4 ML SYRINGE [Lovenox] 54 369
ERTAPENEM 1 GRAM VIAL [Invanz] 54 369
ESTRADIOL 0.01% CREAM/APPL [Estrace] 54 368
ESTRADIOL 0.05 MG PATCH (2/WK) PATCH TDSW [Vivelle-Dot] 48 350
FENOFIBRIC ACID DR 135 MG CAPSULE [Trilipix] 27 289
GABAPENTIN 300 MG CAPSULE [Neurontin] 54 369
HALOPERIDOL DEC 100 MG/ML VIAL [Haldol Decanoate] 54 366
HEATHER 0.35 MG TABLET [Sharobel 28-Day] 41 221
INDOMETHACIN 25 MG/5 ML ORAL SUSPENSION [Indocin] 0 3
IPRATROPIUM 0.03% SPRAY [Atrovent] 54 369
IPRATROPIUM 0.06% SPRAY [Atrovent] 54 369
LACOSAMIDE 200 MG TABLET [Vimpat] 54 369
LOTEPREDNOL ETABONATE 0.2% DRP EYE DROPPER [Alrex] 9 88
LOTEPREDNOL ETABONATE 0.5% DRP EYE DROPPER [Lotemax] 14 181
METFORMIN HCL 1,000 MG TABLET [Glucophage] 54 369
METHYLPHENIDATE ER 36 MG TABLET 24H [RELEXXII] 8 161
METHYLPHENIDATE ER 54 MG TABLET 24H [RELEXXII] 8 161
MIFEPRISTONE 300 MG TABLET [Korlym] 41 239
NEBIVOLOL 10 MG TABLET [Bystolic] 40 352
NEBIVOLOL 2.5 MG TABLET [Bystolic] 40 352
NEBIVOLOL 20 MG TABLET [Bystolic] 40 352
NEBIVOLOL 5 MG TABLET [Bystolic] 40 352
PALIPERIDONE ER 3 MG TABLET 24H [Invega] 54 369
PALIPERIDONE ER 6 MG TABLET 24H [Invega] 54 369
POTASSIUM CL ER 8 MEQ CAPSULE ER [Micro-K Extencaps] 52 366
PREGABALIN 100 MG CAPSULE [Lyrica] 54 369
RISEDRONATE SODIUM 150 MG TABLET [Actonel] 17 322
SILDENAFIL 20 MG TABLET [Revatio] 54 369
SODIUM CHLORIDE 0.9% IV SOLUTION 54 369
TESTOSTERONE CYP 200 MG/ML VIAL [Virilon] 54 365
TOLTERODINE TART ER 2 MG CAPSULE 24H [Detrol LA] 51 363
TOLTERODINE TART ER 4 MG CAPSULE 24H [Detrol LA] 51 363
TRIENTINE HCL 500 MG CAPSULE 11 87
TROSPIUM CHLORIDE ER 60 MG CAPSULE 24H [Sanctura XR] 8 213
VILAZODONE HCL 40 MG TABLET [VIIBRYD] 54 366
*The number of formularies counts the unique formularies that offer this medication. As a note, the same formulary can be used by one or many different Medicare Part D plans. The same formulary can be used by both PDP and MAPD plans.

What Could the Addition of New Generic Drugs Mean to You?

  • You may be able to save money by switching from the brand-name drug to its generic equivalent – with your prescriber’s approval and a new prescription. Please note, you will need to look carefully at coverage costs as we have found that many generics are being offered on the same tier as their brand-name equivalent or the generics do not have a significantly lower retail price.

  • Your brand-name drug may no longer be available if a generic is now available. Based on past experience, you may find that many Medicare Part D plans discontinue coverage for the brand-name drug in the months following the introduction of the generic equivalent - or your plan may immediately drop the brand-name drug now that the generic is being introduced.

    If you have received notice from your Medicare Part D plan that your brand-name medication will be dropped, you should speak with your prescriber to determine if you can take the generic equivalent or if you must continue taking the brand-name drug, you will need to ask your plan for a formulary exception to continue coverage for your brand-name drug.

    You can click for a chart showing the trends in formulary coverage for some of the more popular Medicare drugs and their generic equivalents.
As a note, both our Formulary Browser (you can view all the drugs covered by a single Medicare prescription drug plan) and our the drug finder Drug Finder (you can view all the Medicare drug plans covering a single drug) have been updated with the May 2024 Medicare Part D formulary data.