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20 ML magnesium sulfate 500 MG/ML Injection — RxCUI 1658236

RxNorm drug concept · Semantic clinical drug
RxCUI 1658236 Semantic clinical drug · SCD ● Current RxNorm concept 5 FDA products 9 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

RxCUI1658236
Official name20 ML magnesium sulfate 500 MG/ML Injection
Concept typeSemantic clinical drug (SCD)
RxNorm statusCurrent RxNorm concept
Also known asmagnesium sulfate 10 GM per 20 ML Injection; magnesium sulfate 10 GM in 20 ML Injection
FDA products mapped5
Package NDCs mapped9
Reported Medicaid activity (SDUD)24,669 prescriptions · 26 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 Magnesium Sulfate: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist
  • Most people see results somewhere between 30 minutes and 6 hours after taking it. That's a pretty wide window, so just be prepared and stay close to a bathroom after your dose. Don...
  • Yes, and water really matters here. You need to dissolve your dose in a full 8-ounce glass of water and drink all of it. The water helps the magnesium do its job in your intestines...
  • Does it matter how I take it — like with food or water?
  • This product is designed for occasional constipation — not everyday use. If you find you need a laxative for more than one week straight, that's your sign to talk to a doctor. Rely...
📖 Read our full Magnesium Sulfate guide →

🕸️ Concept Web — How 20 ML magnesium sulfate 500 MG/ML 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 20 ML magnesium sulfate 500 MG/ML Injection RxCUI 1658236

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

  1. Ingredients 1

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

    • Magnesium sulfate 6585
  2. Dose forms 4

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

    • Magnesium sulfate Injection 1656665
    • Magnesium sulfate Injectable Product 1158055
    • Injection 1649574
    • Injectable Product 1151126
  3. Clinical & branded drugs 1

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

    • Magnesium sulfate 500 MG/ML 332157

Showing up to 8 concepts per family — 6 of 6 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

  • Magnesium sulfate 500 MG/ML SCDC · 332157
  • Magnesium sulfate Injection SCDF · 1656665
  • Magnesium sulfate Injectable Product SCDG · 1158055

📦 FDA Products & Package NDCs

5 products · 9 package NDCs
9 package NDCs map to RxCUI 1658236 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
00404-9902-20 1 VIAL, SINGLE-DOSE in 1 BAG (0404-9902-20) / 20 mL in 1 VI... Magnesium Sulfate Henry Schein, Inc. 2022-01-12
00409-2168-77 25 VIAL, PLASTIC in 1 TRAY (0409-2168-77) / 20 mL in 1 VIAL... Magnesium Sulfate Hospira, Inc. 2021-03-15
31722-0394-32 25 VIAL, SINGLE-DOSE in 1 CARTON (31722-394-32) / 2 mL in 1... Magnesium Sulfate Camber Pharmaceuticals, Inc. 2025-05-28
31722-0394-33 25 VIAL, SINGLE-DOSE in 1 CARTON (31722-394-33) / 10 mL in... Magnesium Sulfate Camber Pharmaceuticals, Inc. 2025-05-28
31722-0394-34 25 VIAL, SINGLE-DOSE in 1 CARTON (31722-394-34) / 20 mL in... Magnesium Sulfate Camber Pharmaceuticals, Inc. 2025-05-28
31722-0394-35 25 VIAL, SINGLE-DOSE in 1 CARTON (31722-394-35) / 50 mL in... Magnesium Sulfate Camber Pharmaceuticals, Inc. 2025-05-28
51662-1372-01 20 mL in 1 VIAL, SINGLE-DOSE (51662-1372-1) MAGNESIUM SULFATE HF Acquisition Co LLC, DBA HealthFirst 2019-10-14
63323-0642-20 25 VIAL, SINGLE-DOSE in 1 TRAY (63323-642-20) / 20 mL in 1... Magnesium Sulfate Fresenius Kabi USA, LLC 2016-01-29
63323-0642-50 25 VIAL, SINGLE-DOSE in 1 CARTON (63323-642-50) / 50 mL in... Magnesium Sulfate Fresenius Kabi USA, LLC 2016-01-29
Observed labelers: Camber Pharmaceuticals, Inc. (4) · Fresenius Kabi USA, LLC (2) · Henry Schein, Inc. (1) · HF Acquisition Co LLC, DBA HealthFirst (1) · Hospira, 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.
CodeDescriptorMapped packagesSources
J3475 Inj magnesium sulfate 4 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.