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8 HR carbidopa 36.25 MG / levodopa 145 MG Extended Release Oral Capsule — RxCUI 1600775

RxNorm drug concept · Semantic clinical drug
RxCUI 1600775 Semantic clinical drug · SCD ● Current RxNorm concept 9 FDA products 19 package NDCs Snapshot Jul 14, 2026

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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

RxCUI1600775
Official name8 HR carbidopa 36.25 MG / levodopa 145 MG Extended Release Oral Capsule
Concept typeSemantic clinical drug (SCD)
RxNorm statusCurrent RxNorm concept
Also known as8 HR Carbidopa 36.25 MG / L-DOPA 145 MG Extended Release Oral Capsule; carbidopa 36.25 MG / levodopa 145 MG 8HR Extended Release Oral Capsule
FDA products mapped9
Package NDCs mapped19
Reported Medicaid activity (SDUD)3,855 prescriptions · 20 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 8 HR carbidopa 36.25 MG / levodopa 145 MG Extend... 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 8 HR carbidopa 36.25 MG / levodopa 145 MG Extended Release Oral Capsule RxCUI 1600775

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

  1. Ingredients 3

    The active substance itself — no strength, form, or brand attached yet.

    • Carbidopa 2019
    • Levodopa 6375
    • Carbidopa / levodopa 103990
  2. Brand names 1

    The same medicine's trade names. A brand name alone says nothing about strength or form.

    • Rytary 1599245
  3. Dose forms 9

    The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.

    • Carbidopa / levodopa Extended Release Oral Capsule 1599243
    • Carbidopa / levodopa Oral Product 1155774
    • Carbidopa / levodopa Pill 1155775
    • Carbidopa / levodopa Extended Release Oral Capsule [Rytary] 1599247
    • Rytary Oral Product 1599248
    • Rytary Pill 1599249
    • Extended Release Oral Capsule 316943
    • Oral Product 1151131
    • +1 more in this family
  4. Clinical & branded drugs 4

    Ingredient + strength + dose form. These are the concepts real FDA products actually carry.

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 36.25 MG SCDC · 1599241
  • Levodopa 145 MG SCDC · 1599242
  • Carbidopa / levodopa Extended Release Oral Capsule SCDF · 1599243
  • Carbidopa / levodopa Oral Product SCDG · 1155774
  • Carbidopa / levodopa Pill SCDG · 1155775

Brand-Name Concepts

📦 FDA Products & Package NDCs

9 products · 19 package NDCs
19 package NDCs map to RxCUI 1600775 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
64896-0661-01 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-661-01) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0661-09 25 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-661-09) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0661-43 240 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-661-43) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0661-99 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-661-99) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0662-01 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-662-01) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0662-09 25 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-662-09) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0662-43 240 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-662-43) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0662-99 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-662-99) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0663-01 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-663-01) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0663-09 25 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-663-09) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0663-43 240 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-663-43) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0663-99 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-663-99) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0664-01 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-664-01) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
64896-0664-43 240 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (64896-664-43) RYTARY Amneal Pharmaceuticals LLC 2015-01-12
70518-4630-00 50 POUCH in 1 BOX (70518-4630-0) / 1 CAPSULE, EXTENDED RELE... Carbidopa and Levodopa REMEDYREPACK INC. 2026-04-24
70710-2139-01 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (70710-2139-1) Carbidopa and Levodopa Zydus Pharmaceuticals USA Inc. 2025-10-20
70710-2140-01 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (70710-2140-1) Carbidopa and Levodopa Zydus Pharmaceuticals USA Inc. 2025-10-20
70710-2141-01 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (70710-2141-1) Carbidopa and Levodopa Zydus Pharmaceuticals USA Inc. 2025-10-20
70710-2142-01 100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (70710-2142-1) Carbidopa and Levodopa Zydus Pharmaceuticals USA Inc. 2025-10-20
Observed labelers: Amneal Pharmaceuticals LLC (14) · Zydus Pharmaceuticals USA Inc. (4) · REMEDYREPACK INC. (1) — this is the FDA-listed mapping footprint, not sales, inventory, availability, or market share.

🗃️ 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.