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Diazepam (Valtoco) — 2026 Medicare Part D coverage

Contract year 2026 · CMS monthly formulary file · drug names from RxNorm · data updated October 01, 2026

diazepam — sold as Valtoco: 12 forms appear in Medicare Part D formularies for 2026. This page reports what plans filed with CMS; it does not recommend a plan.

100%of 328 formularies list the most-covered form
Tier 4most common tier
48%report prior authorization (max across forms)
94%report a quantity limit

Which plans in your county cover diazepam?

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.

Forms and strengths in 2026 formularies

FormFormularies listing itMost common tierPASTQL
VALTOCO 10 MG Dose Kit
brand · RxCUI 2272622
328 (100%)4850307
VALTOCO 15 MG Dose Kit
brand · RxCUI 2272636
328 (100%)4850307
VALTOCO 20 MG Dose Kit
brand · RxCUI 2272624
328 (100%)5850307
VALTOCO 5 MG Dose Kit
brand · RxCUI 2272630
328 (100%)4850307
diazePAM 10 MG Oral Tablet
generic · RxCUI 197589
328 (100%)21560307
diazePAM 10 MG in 2 ML Rectal Gel
generic · RxCUI 801961
328 (100%)40094
diazePAM 2 MG Oral Tablet
generic · RxCUI 197590
328 (100%)21560307
diazePAM 2.5 MG in 0.5 ML Rectal Gel
generic · RxCUI 801957
328 (100%)40094
diazePAM 20 MG in 4 ML Rectal Gel
generic · RxCUI 801966
328 (100%)40094
diazePAM 5 MG Oral Tablet
generic · RxCUI 197591
328 (100%)21560307
diazePAM 5 MG in 1 mL Concentrate for Oral Solution
generic · RxCUI 309844
328 (100%)21570286
diazePAM 5 MG in 5 mL Oral Solution
generic · RxCUI 309843
328 (100%)21570283

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.