Yes, Extra Help still covers dementia prescription costs under Medicare drug coverage. Extra Help is a Medicare program for people with limited income and resources that pays Part D premiums, deductibles, and coinsurance. It lowers pharmacy copays for common oral drugs like donepezil, rivastigmine, galantamine, and memantine. It does not pay infusion coinsurance for Leqembi and Kisunla, which fall under Part B.
Medical information disclaimer: This article is for general educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a physician or other qualified health professional about symptoms, medications, tests, or treatment decisions.
Table of Contents
- Which dementia prescriptions cost less?
- What will you pay at the pharmacy?
- Why don't Leqembi and Kisunla count?
- Who qualifies and how do you apply?
Which dementia prescriptions cost less?
The 2026 Medicare Alzheimer's guide from BenefitsUSA explains that common oral dementia drugs are Part D drugs, including donepezil, rivastigmine, galantamine, and memantine 2026 Medicare Alzheimer's guide from BenefitsUSA. Every Part D plan must cover at least two drugs in the Alzheimer's treatment category. Extra Help lowers the pharmacy copay for those covered Part D drugs.
It does not change the plan's formulary. The drug must still be covered by the person's Part D plan. Since January 1, 2024, all Extra Help beneficiaries receive the full subsidy, Social Security Administration policy records show. The prior partial-subsidy tier ended under the Inflation Reduction Act expansion.
What will you pay at the pharmacy?
Medicare.gov lists a $0 Part D plan premium in 2027 and capped pharmacy copays. After total drug costs reach $2,400, the person pays $0 for covered Part D drugs. The National Council on Aging reports 2026 caps of about $5.10 for generics and $12.65 for brands, rising to about $5.80 per generic in 2027 National Council on Aging guide to prescription drug costs.
Most oral dementia generics fall in the lower copay group. That cap applies per prescription at the pharmacy counter. It does not include doctor visits, scans, or infusion fees.
Why don't Leqembi and Kisunla count?
Leqembi and Kisunla are infused Alzheimer's antibodies covered under Medicare Part B, not Part D. CMS states that broader Medicare coverage for Leqembi is provided as a Part B benefit CMS statement on broader Medicare coverage for Leqembi. Extra Help does not pay Part B infusion coinsurance.
Original Medicare patients generally owe the standard 20% Part B coinsurance for those infusions. A Medigap plan, Medicaid, or other secondary coverage may help, but Extra Help does not. Medicare also limits Part B antibody coverage to mild cognitive impairment or mild dementia with documented amyloid pathology. The prescribing clinician must participate in a CMS registry under coverage with evidence development.
Who qualifies and how do you apply?
Medicare.gov sets 2026 Extra Help limits by income and resources Medicare's help with drug costs page. Check these three points: People with full Medicaid, a Medicare Savings Program, or SSI get Extra Help automatically.
Medicare.gov says they are auto-enrolled in a Part D plan with no late-enrollment penalty. Others apply through Social Security. Apply before refills run out, because plan assignment and the lower copay start after enrollment is processed.
- Income below $23,940 for an individual or $32,460 for a married couple
- Resources below $18,090 for an individual or $36,100 for a married couple
- Automatic help with full Medicaid, a Medicare Savings Program, or SSI
