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Carbidopa 4.63 MG/ML / levodopa 20 MG/ML Oral Suspension [Duopa] — RxCUI 1599852

Name: Carbidopa 4.63 MG/ML / levodopa 20 MG/ML Oral Suspension [Duopa] (RxCUI 1599852)
Creator: Brian Staiger, PharmD

RxNorm drug concept · Semantic branded drug

RxCUI 1599852 Semantic branded drug · SBD ● Current RxNorm concept 1 FDA product 1 package NDC Snapshot Jul 14, 2026

This page is curated, coded, and maintained by Dr. Brian Staiger, PharmD

Compiled from public NLM RxNorm and FDA (openFDA NDC directory) data sources. Editorial policy

What you’re looking at: the standardized identity of one medicine, as the U.S. drug-data system sees it. Below — every FDA-listed product, package code, price benchmark, and billing code that maps to it.

🗂️ Key Facts

RxCUI1599852

Official nameCarbidopa 4.63 MG/ML / levodopa 20 MG/ML Oral Suspension [Duopa]

Concept typeSemantic branded drug (SBD)

RxNorm statusCurrent RxNorm concept

Also known ascarbidopa 4.63 MG/ML / L-DOPA 20 MG/ML Oral Suspension [Duopa]; Duopa 4.63 MG / 20 MG in 1 mL Enteral Suspension; Duopa (carbidopa 4.63 MG/ML (as carbidopa monohydrate 5 MG/ML) / levodopa 20 MG/ML) Enteral Suspension

FDA products mapped1

Package NDCs mapped1

Reported Medicaid activity (SDUD)128 prescriptions · 3 state & territory Medicaid programs · latest period Q4 2025

RxNorm release07/06/2026

Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

Our pharmacist-built guide to Levodopa and Carbidopa: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist

Levodopa is the medicine that actually works in your brain — it crosses into the brain and gets converted into dopamine, the chemical that Parkinson's disease depletes. The problem...
What exactly does levodopa and carbidopa do, and why do I need both?
Generally yes, but the timing and content of your meals can matter. High-protein foods — like large servings of meat, eggs, or dairy — can compete with levodopa for absorption in y...
Can I eat normally while taking this medication?

📖 Read our full Levodopa and Carbidopa guide →

🕸️ Concept Web — How Carbidopa 4.63 MG/ML / levodopa 20 MG/ML Oral Su... Connects

One RxCUI never lives alone. Follow the path from the raw ingredient down to the exact strength-and-form concepts FDA products carry — every stop is a real RxNorm concept with its own identifier. Hover or focus any chip for what it means.

This page's concept Carbidopa 4.63 MG/ML / levodopa 20 MG/ML Oral Suspension [Duopa] RxCUI 1599852 Semantic branded drug · SBD

Every web starts here: one RxCUI, one fixed meaning in the RxNorm vocabulary.

Ingredients 3

The active substance itself — no strength, form, or brand attached yet.
- Carbidopa 2019 IN
- Levodopa 6375 IN
- Carbidopa / levodopa 103990 MIN
Brand names 1

The same medicine's trade names. A brand name alone says nothing about strength or form.
- Duopa 1599847 BN
Dose forms 9

The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.
- Carbidopa / levodopa Oral Suspension 1599845 SCDF
- Carbidopa / levodopa Oral Liquid Product 1599844 SCDG
- Carbidopa / levodopa Oral Product 1155774 SCDG
- Carbidopa / levodopa Oral Suspension [Duopa] 1599849 SBDF
- Duopa Oral Liquid Product 1599850 SBDG
- Duopa Oral Product 1599851 SBDG
- Oral Suspension 316969 DF
- Oral Liquid Product 1151137 DFG
- +1 more in this family
Clinical & branded drugs 4

Ingredient + strength + dose form. These are the concepts real FDA products actually carry.
- Carbidopa 4.63 MG/ML / levodopa 20 MG/ML Oral Suspension 1599846 SCD
- Carbidopa 4.63 MG/ML 1599842 SCDC
- Levodopa 20 MG/ML 1599843 SCDC
- Carbidopa 4.63 MG/ML / levodopa 20 MG/ML [Duopa] 1599848 SBDC

Showing up to 8 concepts per family — 16 of 17 stored related concepts drawn.

These are official RxNorm vocabulary relationships — how concepts name and organize the same medicine. They do not establish therapeutic equivalence or substitutability: two concepts appearing in one web is never a statement that products can be swapped.

🔀 Generic ⇄ Brand Crosswalk

The same medicine has an unbranded (generic) identity and one or more brand-name identities — each with its own RxCUI. This is a naming relationship in RxNorm, not a statement that any two products are substitutable.

Generic (Clinical) Concepts

Carbidopa 4.63 MG/ML / levodopa 20 MG/ML Oral Suspension SCD · 1599846
Carbidopa 4.63 MG/ML SCDC · 1599842
Levodopa 20 MG/ML SCDC · 1599843
Carbidopa / levodopa Oral Suspension SCDF · 1599845
Carbidopa / levodopa Oral Liquid Product SCDG · 1599844
Carbidopa / levodopa Oral Product SCDG · 1155774

Brand-Name Concepts

Carbidopa 4.63 MG/ML / levodopa 20 MG/ML [Duopa] SBDC · 1599848
Carbidopa / levodopa Oral Suspension [Duopa] SBDF · 1599849
Duopa Oral Liquid Product SBDG · 1599850
Duopa Oral Product SBDG · 1599851
Duopa BN · 1599847

📦 FDA Products & Package NDCs

1 product · 1 package NDC

1 package NDC map to RxCUI 1599852 in the current snapshot — up to 50 per page. Each linked NDC opens its full package page.

Package NDC	Package	Brand / generic name	Labeler	Marketing start
00074-3012-07	7 CARTRIDGE in 1 CARTON (0074-3012-07) / 100 mL in 1 CARTRI...	Duopa	AbbVie Inc.	2015-01-15

Observed labelers: AbbVie Inc. (1) — this is the FDA-listed mapping footprint, not sales, inventory, availability, or market share.

🧾 Billing Codes (HCPCS)

Medical billing codes (HCPCS "J-codes") that connect to this concept's packages — used mostly when a clinic or hospital bills for a drug it administers. Each code links to its full billing page.

Code	Descriptor	Mapped packages	Sources
J7340	Carbidopa levodopa ent 100ml	1	CMS

⚠ A crosswalk is not coverage: an NDC↔HCPCS mapping does not guarantee any payer covers or pays the code. Always verify the current payer policy before billing.

🗃️ Sources & Limits

Atlas generation902fddb9-e9c1-4004-bf4c-dba4d51037c7

openFDA export observedJul 14, 2026

RxNorm release07/06/2026

Methodology2026-07-full-catalog-v1

A shared RxCUI does not prove interchangeability. Products mapped to the same concept are not thereby equivalent or substitutable — equivalence is a separate, product-level determination.
Listing here does not establish approval or coverage. Appearing in this snapshot is a data observation, not an FDA approval status or a payer coverage decision.
Missing data never means zero. A silent dataset (no price, no billing code, no utilization) means no observation — not that the real-world value is zero.
Counts describe the mapping footprint. Product, package, and labeler counts are the FDA-listed mapping footprint in this snapshot — not sales, inventory, availability, or market share.

This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.

Machine-readable JSON

Reference information about drug-concept identifiers and public regulatory data — not medical advice. Talk to your pharmacist or prescriber about your own medication.