Lamotrigine (Lamictal, Subvenite) — 2026 Medicare Part D coverage
lamotrigine — sold as Lamictal, Subvenite: 42 forms appear in Medicare Part D formularies for 2026. This page reports what plans filed with CMS; it does not recommend a plan.
Which plans in your county cover lamotrigine?
Pick a county to see every Medicare Advantage plan filed there and every stand-alone Part D plan in its region, with this drug's tier, restrictions and tier cost sharing.
How to read drug coverage
Tier is the cost-sharing tier the plan assigned the drug in its CMS formulary filing; lower tiers usually cost less. PA = prior authorization, ST = step therapy (try another drug first), QL = quantity limit. Not on formulary means the plan did not list this exact form; the plan may cover another strength or a formulary exception may be possible. Cost sharing is the plan's initial-coverage amount for the tier as filed with CMS; the deductible, the $2,100 annual out-of-pocket cap, the $35 insulin cap and negotiated prices for selected drugs can change what you actually pay. Formularies change during the year; the plan's formulary document and Medicare.gov govern.
What the star rating under each Medicare Advantage plan means
What the star rating means. CMS rates every Medicare Advantage contract (the "H" number in the plan ID — all plans under it share the rating) on a 1-to-5 scale each October, from about 40 measures of care quality, member experience, complaints and appeals, customer service and, for plans with drug coverage, drug safety and pricing. The 2026 rating is largely based on performance measured in 2024.
5 Excellent4 Above average3 Average2 Below average1 Poor
Not rated means CMS published no overall rating — usually a contract too new to be measured or with too few members ("not enough data"); it is not a low score. A 5-star contract can be joined outside the normal enrollment windows (the 5-star Special Enrollment Period, Dec 8 – Nov 30). Medicare.gov flags contracts rated below 3 stars for three years running as low-performing. Stars describe the contract's past performance as CMS measured it; they are not a recommendation, and they do not tell you whether a plan's network, drugs or costs fit you.
Forms and strengths in 2026 formularies
| Form | Formularies listing it | Most common tier | PA | ST | QL |
|---|---|---|---|---|---|
| Subvenite 10 MG/mL Oral Suspension brand · RxCUI 2724466 | 328 (100%) | 4 | 101 | 55 | 42 |
| lamoTRIgine 100 MG Oral Tablet generic · RxCUI 198427 | 328 (100%) | 1 | 0 | 0 | 0 |
| lamoTRIgine 150 MG Oral Tablet generic · RxCUI 198428 | 328 (100%) | 1 | 0 | 0 | 0 |
| lamoTRIgine 200 MG Oral Tablet generic · RxCUI 198429 | 328 (100%) | 1 | 0 | 0 | 0 |
| lamoTRIgine 25 MG Oral Tablet generic · RxCUI 282401 | 328 (100%) | 1 | 0 | 0 | 0 |
| lamoTRIgine 25 MG Tablet for Oral Suspension generic · RxCUI 311264 | 328 (100%) | 2 | 0 | 0 | 0 |
| lamoTRIgine 5 MG Tablet for Oral Suspension generic · RxCUI 311265 | 328 (100%) | 2 | 0 | 0 | 0 |
| Subvenite 100 MG Oral Tablet brand · RxCUI 2003796 | 260 (79%) | 1 | 0 | 0 | 0 |
| Subvenite 150 MG Oral Tablet brand · RxCUI 2001506 | 260 (79%) | 1 | 0 | 0 | 0 |
| Subvenite 200 MG Oral Tablet brand · RxCUI 2003801 | 260 (79%) | 1 | 0 | 0 | 0 |
| Subvenite 25 MG Oral Tablet brand · RxCUI 2001508 | 260 (79%) | 1 | 0 | 0 | 0 |
| lamoTRIgine 50 MG 24HR Extended Release Oral Tablet generic · RxCUI 850091 | 191 (58%) | 4 | 0 | 54 | 0 |
| lamoTRIgine 100 MG 24HR Extended Release Oral Tablet generic · RxCUI 850087 | 190 (58%) | 4 | 0 | 54 | 0 |
| lamoTRIgine 200 MG 24HR Extended Release Oral Tablet generic · RxCUI 900156 | 188 (57%) | 4 | 0 | 54 | 0 |
| lamoTRIgine 25 MG 24HR Extended Release Oral Tablet generic · RxCUI 900164 | 188 (57%) | 4 | 0 | 54 | 0 |
| lamoTRIgine 300 MG 24HR Extended Release Oral Tablet generic · RxCUI 1098608 | 188 (57%) | 4 | 0 | 54 | 0 |
| lamoTRIgine 250 MG 24HR Extended Release Oral Tablet generic · RxCUI 1146690 | 168 (51%) | 4 | 0 | 54 | 0 |
| lamoTRIgine 200 MG Disintegrating Oral Tablet generic · RxCUI 252479 | 158 (48%) | 4 | 0 | 15 | 0 |
| lamoTRIgine 100 MG Disintegrating Oral Tablet generic · RxCUI 103968 | 147 (45%) | 4 | 0 | 15 | 0 |
| lamoTRIgine 25 MG Disintegrating Oral Tablet generic · RxCUI 198430 | 147 (45%) | 4 | 0 | 15 | 0 |
| lamoTRIgine 50 MG Disintegrating Oral Tablet generic · RxCUI 252478 | 147 (45%) | 4 | 0 | 15 | 0 |
| lamoTRIgine 25 MG Oral Tablet 35 Count Pack generic · RxCUI 751139 | 76 (23%) | 2 | 0 | 0 | 1 |
| lamoTRIgine 25 MG (42), 100 MG (7) Oral Tablet 49 Count Pack generic · RxCUI 751563 | 71 (22%) | 2 | 0 | 0 | 1 |
| lamoTRIgine 25 MG (84), 100 MG (14) Oral Tablet 98 Count Pack generic · RxCUI 753451 | 69 (21%) | 4 | 0 | 0 | 1 |
| Subvenite Starter Kit Blue 25 MG 35 Count brand · RxCUI 2003799 | 55 (17%) | 4 | 0 | 0 | 0 |
| Subvenite Starter Kit Orange 25 MG (42), 100 MG (7) 49 Count brand · RxCUI 2003798 | 54 (16%) | 4 | 0 | 0 | 0 |
| Subvenite Starter Kit Green 25 MG (84), 100 MG (14) 98 Count brand · RxCUI 2003797 | 53 (16%) | 4 | 0 | 0 | 0 |
| lamoTRIgine 25 MG (14), 50 MG (14), 100 MG (7) Disintegrating Oral Tablet 35 Count Pack generic · RxCUI 851750 | 27 (8%) | 4 | 0 | 0 | 2 |
| lamoTRIgine 25 MG (21), 50 MG (7) Disintegrating Oral Tablet 28 Count Pack generic · RxCUI 851748 | 22 (7%) | 4 | 0 | 0 | 2 |
| lamoTRIgine 50 MG (42), 100 MG (14) Disintegrating Oral Tablet 56 Count Pack generic · RxCUI 851752 | 22 (7%) | 4 | 0 | 0 | 2 |
| LaMICtal ODT 100 MG Disintegrating Oral Tablet brand · RxCUI 849049 | 3 (1%) | 4 | 0 | 0 | 2 |
| LaMICtal ODT 200 MG Disintegrating Oral Tablet brand · RxCUI 849050 | 3 (1%) | 4 | 0 | 0 | 2 |
| LaMICtal 100 MG Oral Tablet brand · RxCUI 105018 | 1 (0%) | 1 | 0 | 0 | 0 |
| LaMICtal 150 MG Oral Tablet brand · RxCUI 206201 | 1 (0%) | 1 | 0 | 0 | 0 |
| LaMICtal 200 MG Oral Tablet brand · RxCUI 108782 | 1 (0%) | 1 | 0 | 0 | 0 |
| LaMICtal 25 MG Oral Tablet brand · RxCUI 105019 | 1 (0%) | 1 | 0 | 0 | 0 |
| LaMICtal 25 MG Tablet for Oral Suspension brand · RxCUI 201240 | 1 (0%) | 1 | 0 | 0 | 0 |
| LaMICtal 5 MG Tablet for Oral Suspension brand · RxCUI 201239 | 1 (0%) | 1 | 0 | 0 | 0 |
| LaMICtal Starter Kit Blue 25 MG 35 Count brand · RxCUI 795772 | 1 (0%) | 1 | 0 | 0 | 0 |
| LaMICtal XR Patient Titration Kit Blue 25 MG (21), 50 MG (7) 28 Count brand · RxCUI 900984 | 1 (0%) | 4 | 1 | 0 | 0 |
| LaMICtal XR Patient Titration Kit Green 50 MG (14), 100 MG (14), 200 MG (7) 35 Count brand · RxCUI 900866 | 1 (0%) | 5 | 1 | 0 | 0 |
| LaMICtal XR Patient Titration Kit Orange 25 MG (14), 50 MG (14), 100 MG (7) 35 Count brand · RxCUI 900891 | 1 (0%) | 4 | 1 | 0 | 0 |
Counts are formularies (of 328) in the CMS file that list the form, and how many of those apply prior authorization (PA), step therapy (ST) or a quantity limit (QL). Many plans share one formulary, so plan counts in a county will differ.
How to read drug coverage
Tier is the cost-sharing tier the plan assigned the drug in its CMS formulary filing; lower tiers usually cost less. PA = prior authorization, ST = step therapy (try another drug first), QL = quantity limit. Not on formulary means the plan did not list this exact form; the plan may cover another strength or a formulary exception may be possible. Cost sharing is the plan's initial-coverage amount for the tier as filed with CMS; the deductible, the $2,100 annual out-of-pocket cap, the $35 insulin cap and negotiated prices for selected drugs can change what you actually pay. Formularies change during the year; the plan's formulary document and Medicare.gov govern.
What the star rating under each Medicare Advantage plan means
What the star rating means. CMS rates every Medicare Advantage contract (the "H" number in the plan ID — all plans under it share the rating) on a 1-to-5 scale each October, from about 40 measures of care quality, member experience, complaints and appeals, customer service and, for plans with drug coverage, drug safety and pricing. The 2026 rating is largely based on performance measured in 2024.
5 Excellent4 Above average3 Average2 Below average1 Poor
Not rated means CMS published no overall rating — usually a contract too new to be measured or with too few members ("not enough data"); it is not a low score. A 5-star contract can be joined outside the normal enrollment windows (the 5-star Special Enrollment Period, Dec 8 – Nov 30). Medicare.gov flags contracts rated below 3 stars for three years running as low-performing. Stars describe the contract's past performance as CMS measured it; they are not a recommendation, and they do not tell you whether a plan's network, drugs or costs fit you.