Amantadine Hcl
Brand names: Osmolex Er, Amantadine, Gocovri
At a glance
- Medicare prescriptions, 2024
- 410,165
- Medicare drug cost
- $96.9M
- Average cost per prescription
- $236
- Clinicians who prescribed it
- 13,176
Where it is prescribed
List the prescribers in any state, county, city or ZIP code →
What it is used for
Amantadine hydrochloride capsules, USP are indicated for the prophylaxis and treatment of signs and symptoms of infection caused by various strains of influenza A virus.
From the FDA-approved prescribing information (label dated January 2026). Full labels on DailyMed (opens in a new tab)
Who prescribes it
- Neurology 40.5%
- Nurse Practitioners 12.5%
- Internal Medicine 12.5%
- Family Medicine 9.2%
- Psychiatry 7.1%
- Psychiatric Nurse Practitioners 5.8%
- Physician Assistants 4.3%
- Geriatric Medicine 1.8%
- Physical Medicine & Rehabilitation (PM&R) 1.2%
- General Practice 0.9%
- Hospitalist 0.7%
- Child & Adolescent Psychiatry 0.5%
All prescribers, by place, name or specialty →
Share of Medicare prescriptions written by each specialty. Select one to list its prescribers.
Trend, 2019–2024
Medicare prescriptions rose 5% from 2019 to 2024.
Biggest change by state since 2019
- Arizona +22%
- Virginia +18%
- Minnesota +14%
- Florida +13%
- Illinois +13%
- South Carolina (smallest change) −19%
- Colorado (smallest change) −9%
From CMS’s yearly state and national Part D summaries, which count every prescriber, including those CMS leaves out of its per-clinician data (fewer than 11 prescriptions). That is why these totals are higher than the count at the top of this page. Prescriptions include refills.
What it looks like
Pills from 5 makers on file. The same medicine can look different depending on who made it, so check the imprint (the letters and numbers on the pill) with your pharmacist if a refill looks different.
Avkare
| Strength | Looks like | Imprint |
|---|---|---|
| 100 mg | yellow oval capsule, 16 mm | A1 |
Avpak
| Strength | Looks like | Imprint |
|---|---|---|
| 100 mg | yellow oval capsule, 16 mm | A1 |
Bionpharma Inc.
| Strength | Looks like | Imprint |
|---|---|---|
| 100 mg | yellow oval capsule, 16 mm | A1 |
Direct Rx
| Strength | Looks like | Imprint |
|---|---|---|
| 100 mg | orange oval capsule, 18 mm | IT76 |
Marlex Pharmaceuticals Inc
| Strength | Looks like | Imprint |
|---|---|---|
| 100 mg | white round tablet, 7 mm | IT 75 |
| 100 mg | orange oval capsule, 18 mm | IT 76 |
Source: DailyMed (U.S. National Library of Medicine), from each maker’s FDA drug listing. A few makers are shown, not every one. Never take a pill you can’t identify; ask a pharmacist.
Industry payments about this drug
Drug makers reported $404,836 in payments to clinicians that named this drug in 2025 (meals, speaking, consulting and similar).
- Mdd US Operations, LLC $404,836
Source: CMS Open Payments, general payments (not research), program year 2025. A payment is not evidence of wrongdoing. Payments by doctor
Recalls and shortages
Not on the FDA drug shortage list.
1 recall since 2020
- Feb 2026 · Avkare · Class II
Failed Dissolution Specifications: This recall has been initiated due to an Out of Specification finding in dissolution.
Recalls usually affect specific lots from one maker, not every version of a drug. Class I is the most serious; most drug recalls are Class II. FDA recalls (opens in a new tab)
Sources: CMS Medicare Part D Prescribers by Provider and Drug (2024; prescriptions include refills, and CMS hides counts under 11 per prescriber); U.S. Food and Drug Administration, openFDA (drug labels, NDC directory, enforcement reports, drug shortages); CMS Open Payments 2025; ClinicalTrials.gov. General information only, not medical advice; not yet reviewed by our medical reviewer.