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Ampicillin 2000 MG / sulbactam 1000 MG Injection — RxCUI 1659598

RxNorm drug concept · Semantic clinical drug
RxCUI 1659598 Semantic clinical drug · SCD ● Current RxNorm concept 30 FDA products 32 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

RxCUI1659598
Official nameAmpicillin 2000 MG / sulbactam 1000 MG Injection
Concept typeSemantic clinical drug (SCD)
RxNorm statusCurrent RxNorm concept
Also known asampicillin 2 GM / sulbactam 1 GM Injection; ampicillin / sulbactam 3 GM Injection; ampicillin (as ampicillin sodium) 2 GM / sulbactam (as sulbactam sodium) 1 GM Injection
FDA products mapped30
Package NDCs mapped32
Reported Medicaid activity (SDUD)25,085 prescriptions · 47 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 Ampicillin Injection: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist
  • The injectable form is used when an infection is serious enough to need fast, reliable levels of the antibiotic in your body — or when you're not able to swallow medication right n...
  • Why am I getting ampicillin as a shot instead of a pill?
  • No — if you've had an allergic reaction to any penicillin before, you should not receive ampicillin. Make sure your care team knows about any penicillin or cephalosporin allergy, a...
  • I'm allergic to penicillin — is this safe for me?
📖 Read our full Ampicillin Injection guide →

🕸️ Concept Web — How Ampicillin 2000 MG / sulbactam 1000 MG Injection 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 Ampicillin 2000 MG / sulbactam 1000 MG Injection RxCUI 1659598

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.

    • Ampicillin 733
    • Sulbactam 10167
    • Ampicillin / sulbactam 1009148
  2. Brand names 1

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

    • Unasyn 57773
  3. Dose forms 6

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

    • Ampicillin / sulbactam Injection 1659591
    • Ampicillin / sulbactam Injectable Product 1153190
    • Ampicillin / sulbactam Injection [Unasyn] 1659594
    • Unasyn Injectable Product 1187828
    • Injection 1649574
    • Injectable Product 1151126
  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 — 14 of 14 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

  • Ampicillin 2000 MG SCDC · 1659596
  • Sulbactam 1000 MG SCDC · 1659597
  • Ampicillin / sulbactam Injection SCDF · 1659591
  • Ampicillin / sulbactam Injectable Product SCDG · 1153190

Brand-Name Concepts

📦 FDA Products & Package NDCs

30 products · 32 package NDCs
32 package NDCs map to RxCUI 1659598 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
00049-0013-83 10 VIAL in 1 CARTON (0049-0013-83) / 1 INJECTION, POWDER, F... UNASYN Roerig 1991-11-22
00049-0014-83 10 VIAL in 1 CARTON (0049-0014-83) / 1 INJECTION, POWDER, F... UNASYN Roerig 1991-11-22
00409-2689-01 10 VIAL in 1 TRAY (0409-2689-01) / 1 INJECTION, POWDER, FOR... Ampicillin and Sulbactam Hospira, Inc 2017-08-25
00409-2987-03 10 VIAL in 1 TRAY (0409-2987-03) / 1 INJECTION, POWDER, FOR... Ampicillin and Sulbactam Hospira, Inc 2017-09-15
00641-6116-10 10 VIAL in 1 CARTON (0641-6116-10) / 1.5 g in 1 VIAL (0641-... Ampicillin and Sulbactam Hikma Pharmaceuticals USA Inc. 2009-12-22
00641-6117-10 10 VIAL in 1 CARTON (0641-6117-10) / 3 g in 1 VIAL (0641-61... Ampicillin and Sulbactam Hikma Pharmaceuticals USA Inc. 2009-12-22
25021-0142-20 10 VIAL in 1 CARTON (25021-142-20) / 1 INJECTION, POWDER, F... ampicillin and sulbactam Sagent Pharmaceuticals 2010-06-30
25021-0143-30 10 VIAL in 1 CARTON (25021-143-30) / 1 INJECTION, POWDER, F... ampicillin and sulbactam Sagent Pharmaceuticals 2010-06-30
44567-0150-10 10 VIAL in 1 CARTON (44567-150-10) / 1 INJECTION, POWDER, F... Ampicillin and Sulbactam WG Critical Care, LLC 2021-11-30
44567-0210-10 10 VIAL in 1 CARTON (44567-210-10) / 1 INJECTION, POWDER, F... Ampicillin and Sulbactam WG Critical Care, LLC 2005-11-30
44567-0211-10 10 VIAL in 1 CARTON (44567-211-10) / 1 INJECTION, POWDER, F... Ampicillin and Sulbactam WG Critical Care, LLC 2005-11-30
55150-0116-10 10 VIAL in 1 CARTON (55150-116-10) / 1 INJECTION, POWDER, F... Ampicillin and Sulbactam Eugia US LLC 2012-02-10
55150-0116-20 10 VIAL in 1 CARTON (55150-116-20) / 1 INJECTION, POWDER, F... Ampicillin and Sulbactam Eugia US LLC 2012-02-10
55150-0117-10 10 VIAL in 1 CARTON (55150-117-10) / 1 INJECTION, POWDER, F... Ampicillin and Sulbactam Eugia US LLC 2012-02-10
55150-0117-20 10 VIAL in 1 CARTON (55150-117-20) / 1 INJECTION, POWDER, F... Ampicillin and Sulbactam Eugia US LLC 2012-02-10
55150-0178-99 10 BOTTLE in 1 BOX (55150-178-99) / 1 INJECTION, POWDER, FO... Ampicillin and Sulbactam Eugia US LLC 2012-09-13
55150-0179-99 10 BOTTLE in 1 BOX (55150-179-99) / 1 INJECTION, POWDER, FO... Ampicillin and Sulbactam Eugia US LLC 2012-09-13
71288-0031-21 10 VIAL, SINGLE-DOSE in 1 CARTON (71288-031-21) / 1 INJECTI... Ampicillin and Sulbactam Meitheal Pharmaceuticals Inc. 2005-11-29
71288-0031-92 10 VIAL, SINGLE-DOSE in 1 CARTON (71288-031-92) / 1 INJECTI... Ampicillin and Sulbactam Meitheal Pharmaceuticals Inc. 2005-11-29
71288-0032-21 10 VIAL, SINGLE-DOSE in 1 CARTON (71288-032-21) / 1 INJECTI... Ampicillin and Sulbactam Meitheal Pharmaceuticals Inc. 2005-11-29
71288-0032-92 10 VIAL, SINGLE-DOSE in 1 CARTON (71288-032-92) / 1 INJECTI... Ampicillin and Sulbactam Meitheal Pharmaceuticals Inc. 2005-11-29
72485-0416-10 10 VIAL in 1 CARTON (72485-416-10) / 1 INJECTION, POWDER, F... Ampicillin Sodium and Sulbactam Sodium Armas Pharmaceuticals Inc. 2023-07-21
72485-0417-10 10 VIAL in 1 CARTON (72485-417-10) / 1 INJECTION, POWDER, F... Ampicillin Sodium and Sulbactam Sodium Armas Pharmaceuticals Inc. 2023-04-25
72572-0136-10 10 VIAL in 1 CARTON (72572-136-10) / 1 INJECTION, POWDER, F... ampicillin sodium and sulbactam sodium Civica, Inc. 2025-09-08
72603-0220-01 1 INJECTION, POWDER, FOR SOLUTION in 1 VIAL, SINGLE-DOSE (72... Ampicillin and Sulbactam NorthStar Rx, LLC 2024-03-01
72603-0220-10 10 VIAL, SINGLE-DOSE in 1 CARTON (72603-220-10) / 1 INJECTI... Ampicillin and Sulbactam NorthStar Rx, LLC 2024-03-01
72603-0335-01 1 INJECTION, POWDER, FOR SOLUTION in 1 VIAL, SINGLE-DOSE (72... Ampicillin and Sulbactam NorthStar Rx, LLC 2024-03-01
72603-0335-10 10 VIAL, SINGLE-DOSE in 1 CARTON (72603-335-10) / 1 INJECTI... Ampicillin and Sulbactam NorthStar Rx, LLC 2024-03-01
83270-0304-10 10 VIAL in 1 CARTON (83270-304-10) / 1 INJECTION, POWDER, F... ampicillin sodium and sulbactam sodium ONESOURCE SPECIALTY PHARMA LIMITED 2023-04-14
83270-0305-10 10 VIAL in 1 CARTON (83270-305-10) / 1 INJECTION, POWDER, F... ampicillin sodium and sulbactam sodium ONESOURCE SPECIALTY PHARMA LIMITED 2023-04-14
83634-0109-20 10 VIAL, SINGLE-DOSE in 1 CARTON (83634-109-20) / 1 INJECTI... Ampicillin and Sulbactam Avenacy, LLC 2025-04-25
83634-0110-20 10 VIAL, SINGLE-DOSE in 1 CARTON (83634-110-20) / 1 INJECTI... Ampicillin and Sulbactam Avenacy, LLC 2025-04-25
Observed labelers: Eugia US LLC (6) · Meitheal Pharmaceuticals Inc. (4) · NorthStar Rx, LLC (4) · WG Critical Care, LLC (3) · Armas Pharmaceuticals Inc. (2) · Avenacy, LLC (2) · +6 more — 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.
CodeDescriptorMapped packagesSources
J0295 Ampicillin sulbactam 1.5 gm 25 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.