Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Prescription medicine · generic available

Carbidopa and levodopa

Also listed by the FDA as: carbidopa / levodopa · carbidopa hydrate / levodopa

Drug class: Aromatic Amino Acid, Aromatic Amino Acid Decarboxylation Inhibitor

The FDA’s “Established Pharmacologic Class”: the group of medicines that work in a similar way.

Official FDA data, not advice

Everything here comes from the U.S. Food and Drug Administration (FDA): the drug label, the NDC Directory, Drugs@FDA, recall reports and the drug shortage list. Each fact shows its source and date.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

In an emergency, call 911. If someone may have taken too much of a medicine, call Poison Help: 1‑800‑222‑1222.

Quick answers

What is Carbidopa and levodopa used for?
The FDA-approved label (Sinemet, Organon LLC, August 1, 2026) says: “SINEMET is indicated in the treatment of Parkinson's disease, post-encephalitic parkinsonism, and symptomatic parkinsonism that may follow carbon monoxide intoxication or manganese intoxication. Carbidopa allows patients treated for Parkinson's disease to use much lower doses of levodopa. Some patients who responded poorly to levodopa have improved on SINEMET. …” This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.
Does Carbidopa and levodopa have a boxed warning?
No. None of the 64 FDA labels we found for this medicine has a boxed warning.
Is there a shortage of Carbidopa and levodopa?
No current shortage is listed by the FDA for the products of this medicine (FDA data from October 30, 2026).
Has Carbidopa and levodopa been recalled?
FDA enforcement reports list 2 recalls of products of this medicine; the newest started January 13, 2017 (Class II). A recall usually concerns specific lots, not every product.
Who makes Carbidopa and levodopa?
37 companies list prescription products of Carbidopa and levodopa in the FDA NDC Directory, including Sun Pharmaceutical Industries, Inc., Amneal Pharmaceuticals LLC and A-S Medication Solutions.

What Carbidopa and levodopa is used for

Quoted from the “Indications and Usage” section of the FDA-approved label.

SINEMET is indicated in the treatment of Parkinson's disease, post-encephalitic parkinsonism, and symptomatic parkinsonism that may follow carbon monoxide intoxication or manganese intoxication. Carbidopa allows patients treated for Parkinson's disease to use much lower doses of levodopa. Some patients who responded poorly to levodopa have improved on SINEMET. …

— FDA label: Sinemet, Organon LLC, effective August 1, 2026. Read the full label on DailyMed →

The FDA has 64 labels for products of this medicine (different makers and forms); uses can differ between them. Check the label that comes with your own medicine.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

Conditions named on the label

These condition names appear word for word in the label’s “Indications and Usage” text (matched with a reviewed table). Each page lists hospitals whose own websites name the condition.

Related medical specialties

Boxed warning

A boxed warning (“black box”) is the FDA’s strongest warning on a drug label, for serious or life-threatening risks.

The label quoted above has no boxed warning.

0 of 64 FDA labels for this medicine have a boxed warning.

Forms and how it is given

Dosage formsTablet · Tablet, extended release · Capsule, extended release · Tablet, orally disintegrating · Suspension
RouteOral · Enteral
Prescription products119 in the FDA NDC Directory
Brand namesCrexont, Rytary, Sinemet, Duopa, Dhivy

What pharmacies pay (NADAC)

The National Average Drug Acquisition Cost (NADAC) is the average price U.S. retail pharmacies paid to buy one unit of a medicine (one tablet, one mL or one gram), from a monthly survey of pharmacy invoices by the Centers for Medicare & Medicaid Services (CMS). State Medicaid programs use it to pay pharmacies.

This is not the price you pay. What you pay depends on your insurance (copay or coinsurance), your pharmacy and any discounts, and pharmacies also charge for filling a prescription. Ask your pharmacist or your health plan what your price will be.

NADAC per unit for Carbidopa and levodopa, by strength and form
Strength and formGeneric or brandPharmacies pay
carbidopa 10 mg · levodopa 100 mg
tablet
Generic $0.0742 per tablet
carbidopa 10 mg · levodopa 100 mg
tablet, orally disintegrating
Generic $0.5981 per tablet
carbidopa 23.75 mg · levodopa 95 mg
capsule, extended release
Generic $3.18 per capsule
carbidopa 25 mg · levodopa 100 mg
tablet
Generic $0.0736 per tablet
carbidopa 25 mg · levodopa 100 mg
tablet
Brand: Sinemet $1.42 per tablet
carbidopa 25 mg · levodopa 100 mg
tablet, extended release
Generic $0.1103 per tablet
carbidopa 25 mg · levodopa 100 mg
tablet, orally disintegrating
Generic $0.6831 per tablet
carbidopa 25 mg · levodopa 250 mg
tablet
Generic $0.1250 per tablet
carbidopa 25 mg · levodopa 250 mg
tablet, orally disintegrating
Generic $0.8753 per tablet
carbidopa 36.25 mg · levodopa 145 mg
capsule, extended release
Generic $3.45 per capsule
carbidopa 48.75 mg · levodopa 195 mg
capsule, extended release
Generic $3.23 per capsule
carbidopa 50 mg · levodopa 200 mg
tablet, extended release
Generic $0.1780 per tablet
carbidopa 61.25 mg · levodopa 245 mg
capsule, extended release
Generic $3.95 per capsule
carbidopa hydrate 10 mg · levodopa 100 mg
tablet
Generic $0.0742 per tablet
carbidopa hydrate 23.75 mg · levodopa 95 mg
capsule, extended release
Brand: Rytary $3.98 per capsule
carbidopa hydrate 25 mg · levodopa 100 mg
tablet
Generic $0.0736 per tablet
carbidopa hydrate 25 mg · levodopa 100 mg
tablet
Brand: Dhivy $3.61 per tablet
carbidopa hydrate 25 mg · levodopa 100 mg
tablet, extended release
Generic $0.1103 per tablet
carbidopa hydrate 25 mg · levodopa 250 mg
tablet
Generic $0.1250 per tablet
carbidopa hydrate 35 mg · levodopa 140 mg
capsule, extended release
Brand: Crexont $4.59 per capsule
carbidopa hydrate 36.25 mg · levodopa 145 mg
capsule, extended release
Brand: Rytary $3.97 per capsule
carbidopa hydrate 48.75 mg · levodopa 195 mg
capsule, extended release
Brand: Rytary $3.98 per capsule
carbidopa hydrate 50 mg · levodopa 200 mg
tablet, extended release
Generic $0.1780 per tablet
carbidopa hydrate 52.5 mg · levodopa 210 mg
capsule, extended release
Brand: Crexont $4.58 per capsule
carbidopa hydrate 61.25 mg · levodopa 245 mg
capsule, extended release
Brand: Rytary $5.00 per capsule
carbidopa hydrate 70 mg · levodopa 280 mg
capsule, extended release
Brand: Crexont $4.58 per capsule
carbidopa hydrate 87.5 mg · levodopa 350 mg
capsule, extended release
Brand: Crexont $4.58 per capsule

NADAC list of November 4, 2026; these prices took effect between January 1, 2026 and October 21, 2026. Shown only where a package’s NDC code matches the NADAC list exactly, and only for that exact strength and form: nothing is averaged across strengths. Strengths and forms not listed here have no NADAC price.

Source: NADAC (National Average Drug Acquisition Cost) 2026, data.medicaid.gov (CMS) →

Companies that list this medicine

Labelers in the FDA NDC Directory: the company named on the package (maker or distributor), with the number of prescription products.

FDA approval history

  • NDA: New Drug Application: how a new (usually brand-name) medicine is approved.
  • ANDA: Abbreviated New Drug Application: how a generic version is approved.
Brand and biologic applications
ApplicationSponsorApprovedLater changes approved
NDA017555
SINEMET
OrganonMay 2, 1975 59, latest March 19, 2026
2026: Labeling · 2020: Manufacturing (CMC) · 2014: Labeling
NDA203312
RYTARY
ImpaxJanuary 7, 2015 7, latest March 19, 2026
2026: Labeling · 2019: Labeling · 2016: Labeling
NDA203952
DUOPA
AbbvieJanuary 9, 2015 7, latest March 19, 2026
2026: Labeling · 2020: Labeling · 2019: Labeling
NDA214869
DHIVY
Avion PharmsNovember 12, 2021 3, latest March 19, 2026
2026: Labeling · 2022: Labeling · 2022: Labeling
NDA217186
CREXONT
ImpaxAugust 7, 2024 2, latest May 15, 2026
2026: Labeling · 2026: Labeling

Generic approvals (18)

Shortage status

The FDA drug shortage list does not show these products.

FDA Drug Shortages database →

Recalls

From FDA enforcement reports, matched by the product’s NDC code. A recall usually covers specific lots only: check the lot number on your package and ask your pharmacist. Do not stop a medicine on your own.

  1. January 13, 2017 · Class II · Terminated · D-0495-2017

    Failed Stability Specifications: confirmed out of specification results obtained during refrigerated material stability testing indicating that drug may settle within drug cassettes nearing the end of their refrigerated shelf-life

    Duopa (carbidopa and levodopa enteral suspension), 4.63 mg/20 mg per mL, 100 mL cassette, 7 cassettes per carton, Rx Only, AbbVie Inc., North Chicago, IL 60064 --- NDC 0074-3012-07 — AbbVie Inc.

  2. January 12, 2017 · Class II · Terminated · D-0455-2017

    Failed Dissolution Specifications

    Sun Pharma Carbidopa and Levodopa Tablets USP 25 mg/250 mg a) 100-count bottles (NDC 62756-519-88), b) 500-count bottles (NDC 62756-519-13) Rx Only, Distributed by: Sun Pharmaceutical Industries, Inc., Cranbury, NJ 08512 — Sun Pharmaceutical Industries, Inc.

What do the recall classes mean?

Class I: The most serious type: there is a reasonable chance that using the product will cause serious health problems or death.
Class II: Using the product may cause temporary or medically reversible health problems, or the chance of serious problems is remote.
Class III: Using the product is not likely to cause health problems (for example a labeling or packaging issue).

Official identifiers

RxCUI (RxNorm)197443, 197444, 197445, 308988, 308989, 476399, 476515, 483090, 724598, 724602 … (+10)
SPL set ID of the quoted label9b17b028-964a-473c-823d-81423535bd66
FDA labels (SPL)64
FDA applicationsNDA017555, NDA203312, NDA203952, NDA214869, NDA217186, 18 ANDA
Active ingredients (FDA)CARBIDOPA / LEVODOPA

Sources

  1. FDA-approved label on DailyMed (National Library of Medicine) — Sinemet, Organon LLC, effective August 1, 2026; via openFDA, FDA data exported October 30, 2026, retrieved October 31, 2026
  2. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  5. Drug shortages (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026

openFDA data is provided by the FDA as is; it may be incomplete. Always rely on the label that comes with your medicine. FDA Enforcement Report search →

Report an error → · Information for medicine makers