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Sulfamethoxazole 400 MG / trimethoprim 80 MG Oral Tablet — RxCUI 198334

RxNorm drug concept · Semantic clinical drug
RxCUI 198334 Semantic clinical drug · SCD ● Current RxNorm concept 24 FDA products 57 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

RxCUI198334
Official nameSulfamethoxazole 400 MG / trimethoprim 80 MG Oral Tablet
Concept typeSemantic clinical drug (SCD)
RxNorm statusCurrent RxNorm concept
Also known asSMX 400 MG / TMP 80 MG Oral Tablet
FDA products mapped24
Package NDCs mapped57
Reported Medicaid activity (SDUD)1,839,569 prescriptions · 52 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 Trimethoprim: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist
  • Trimethoprim is an antibiotic used to treat uncomplicated urinary tract infections — the kind that aren't complicated by other conditions. It works against several specific bacteri...
  • The usual course is 10 days — taken either twice a day (roughly every 12 hours) or once a day, depending on what your doctor prescribed. Try to take it at the same time each day to...
  • How long do I need to take it, and does it matter what time of day I take it?
  • The most common side effects are a skin rash and itching — these are generally mild and tend to show up about a week or two into treatment. Stomach upset, nausea, or a sore mouth c...
📖 Read our full Trimethoprim guide →

🕸️ Concept Web — How Sulfamethoxazole 400 MG / trimethoprim 80 MG Ora... 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 Sulfamethoxazole 400 MG / trimethoprim 80 MG Oral Tablet RxCUI 198334

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.

    • Sulfamethoxazole 10180
    • Trimethoprim 10829
    • Sulfamethoxazole / trimethoprim 10831
  2. Brand names 1

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

    • Bactrim 151399
  3. Dose forms 9

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

    • Sulfamethoxazole / trimethoprim Oral Tablet 374234
    • Sulfamethoxazole / trimethoprim Oral Product 1162983
    • Sulfamethoxazole / trimethoprim Pill 1162984
    • Sulfamethoxazole / trimethoprim Oral Tablet [Bactrim] 369244
    • Bactrim Oral Product 1167956
    • Bactrim Pill 1167959
    • Oral Tablet 317541
    • 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

  • Sulfamethoxazole 400 MG SCDC · 316746
  • Trimethoprim 80 MG SCDC · 317528
  • Sulfamethoxazole / trimethoprim Oral Tablet SCDF · 374234
  • Sulfamethoxazole / trimethoprim Oral Product SCDG · 1162983
  • Sulfamethoxazole / trimethoprim Pill SCDG · 1162984

Brand-Name Concepts

📦 FDA Products & Package NDCs

24 products · 57 package NDCs
57 package NDCs map to RxCUI 198334 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
42291-0758-01 100 TABLET in 1 BOTTLE (42291-758-01) Sulfamethoxazole and Trimethoprim AvKARE 2015-08-05
42291-0758-50 500 TABLET in 1 BOTTLE (42291-758-50) Sulfamethoxazole and Trimethoprim AvKARE 2016-10-31
42291-0759-01 100 TABLET in 1 BOTTLE (42291-759-01) Sulfamethoxazole and Trimethoprim AvKARE 2016-10-31
42291-0759-50 500 TABLET in 1 BOTTLE (42291-759-50) Sulfamethoxazole and Trimethoprim AvKARE 2015-08-05
49708-0145-01 100 TABLET in 1 BOTTLE, PLASTIC (49708-145-01) Bactrim Sun Pharmaceutical Industries, Inc 2004-11-01
49708-0146-01 100 TABLET in 1 BOTTLE, PLASTIC (49708-146-01) Bactrim DS Sun Pharmaceutical Industries, Inc 2004-11-01
50268-0728-15 50 BLISTER PACK in 1 BOX, UNIT-DOSE (50268-728-15) / 1 TABL... Sulfamethoxazole and Trimethoprim AvPAK 2014-09-23
53489-0145-01 100 TABLET in 1 BOTTLE, PLASTIC (53489-145-01) Sulfamethoxazole and Trimethoprim Sun Pharmaceutical Industries, Inc. 1986-08-25
53489-0145-05 500 TABLET in 1 BOTTLE, PLASTIC (53489-145-05) Sulfamethoxazole and Trimethoprim Sun Pharmaceutical Industries, Inc. 1986-08-25
53489-0146-01 100 TABLET in 1 BOTTLE, PLASTIC (53489-146-01) Sulfamethoxazole and Trimethoprim Sun Pharmaceutical Industries, Inc. 1986-08-25
53489-0146-05 500 TABLET in 1 BOTTLE, PLASTIC (53489-146-05) Sulfamethoxazole and Trimethoprim Sun Pharmaceutical Industries, Inc. 1986-08-25
53746-0271-01 100 TABLET in 1 BOTTLE (53746-271-01) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-02-25
53746-0271-05 500 TABLET in 1 BOTTLE (53746-271-05) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-02-25
53746-0271-10 1000 TABLET in 1 BOTTLE (53746-271-10) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-02-25
53746-0271-50 50 TABLET in 1 BOTTLE (53746-271-50) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-02-25
53746-0272-01 100 TABLET in 1 BOTTLE (53746-272-01) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-09-13
53746-0272-02 250 TABLET in 1 BOTTLE (53746-272-02) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-09-13
53746-0272-05 500 TABLET in 1 BOTTLE (53746-272-05) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-09-13
53746-0272-11 10 TABLET in 1 BOTTLE (53746-272-11) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-09-13
53746-0272-24 24 TABLET in 1 BOTTLE (53746-272-24) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals of New York LLC 2010-09-13
57237-0232-01 100 TABLET in 1 BOTTLE (57237-232-01) Sulfamethoxazole and Trimethoprim Rising Pharma Holdings, Inc. 2010-02-16
57237-0232-05 500 TABLET in 1 BOTTLE (57237-232-05) Sulfamethoxazole and Trimethoprim Rising Pharma Holdings, Inc. 2010-02-16
57237-0233-01 100 TABLET in 1 BOTTLE (57237-233-01) Sulfamethoxazole and Trimethoprim Rising Pharma Holdings, Inc. 2010-02-16
57237-0233-05 500 TABLET in 1 BOTTLE (57237-233-05) Sulfamethoxazole and Trimethoprim Rising Pharma Holdings, Inc. 2010-02-16
60429-0259-01 100 TABLET in 1 BOTTLE, PLASTIC (60429-259-01) Sulfamethoxazole and Trimethoprim Golden State Medical Supply, Inc. 2015-04-24
60687-0614-01 100 BLISTER PACK in 1 BOX, UNIT-DOSE (60687-614-01) / 1 TAB... Sulfamethoxazole and Trimethoprim American Health Packaging 2022-01-03
61971-0115-01 100 TABLET in 1 BOTTLE (61971-115-01) Sulfamethoxazole and Trimethoprim Vista Pharmaceuticals, Inc. 2006-06-06
61971-0115-05 500 TABLET in 1 BOTTLE (61971-115-05) Sulfamethoxazole and Trimethoprim Vista Pharmaceuticals, Inc. 2006-06-06
61971-0120-01 100 TABLET in 1 BOTTLE (61971-120-01) Sulfamethoxazole and Trimethoprim Vista Pharmaceuticals, Inc. 2006-08-22
61971-0120-05 500 TABLET in 1 BOTTLE (61971-120-05) Sulfamethoxazole and Trimethoprim Vista Pharmaceuticals, Inc. 2006-08-22
62135-0897-18 180 TABLET in 1 BOTTLE (62135-897-18) Sulfamethoxazole and Trimethoprim Chartwell RX, LLC 2024-01-11
62135-0897-90 90 TABLET in 1 BOTTLE (62135-897-90) Sulfamethoxazole and Trimethoprim Chartwell RX, LLC 2024-01-11
62135-0898-18 180 TABLET in 1 BOTTLE (62135-898-18) Sulfamethoxazole and Trimethoprim Chartwell RX, LLC 2024-01-11
62135-0898-90 90 TABLET in 1 BOTTLE (62135-898-90) Sulfamethoxazole and Trimethoprim Chartwell RX, LLC 2024-01-11
65162-0271-05 50 TABLET in 1 BOTTLE (65162-271-05) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-02-25
65162-0271-10 100 TABLET in 1 BOTTLE (65162-271-10) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-02-25
65162-0271-11 1000 TABLET in 1 BOTTLE (65162-271-11) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-02-25
65162-0271-50 500 TABLET in 1 BOTTLE (65162-271-50) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-02-25
65162-0272-01 10 TABLET in 1 BOTTLE (65162-272-01) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-09-13
65162-0272-10 100 TABLET in 1 BOTTLE (65162-272-10) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-09-13
65162-0272-24 24 TABLET in 1 BOTTLE (65162-272-24) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-09-13
65162-0272-25 250 TABLET in 1 BOTTLE (65162-272-25) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-09-13
65162-0272-50 500 TABLET in 1 BOTTLE (65162-272-50) Sulfamethoxazole and Trimethoprim Amneal Pharmaceuticals LLC 2010-09-13
65862-0419-01 100 TABLET in 1 BOTTLE (65862-419-01) Sulfamethoxazole and Trimethoprim Aurobindo Pharma Limited 2010-02-16
65862-0419-05 500 TABLET in 1 BOTTLE (65862-419-05) Sulfamethoxazole and Trimethoprim Aurobindo Pharma Limited 2010-02-16
65862-0419-20 20 TABLET in 1 BOTTLE (65862-419-20) Sulfamethoxazole and Trimethoprim Aurobindo Pharma Limited 2010-02-16
65862-0419-99 1000 TABLET in 1 BOTTLE (65862-419-99) Sulfamethoxazole and Trimethoprim Aurobindo Pharma Limited 2010-02-16
65862-0420-01 100 TABLET in 1 BOTTLE (65862-420-01) Sulfamethoxazole and Trimethoprim Aurobindo Pharma Limited 2010-02-16
65862-0420-05 500 TABLET in 1 BOTTLE (65862-420-05) Sulfamethoxazole and Trimethoprim Aurobindo Pharma Limited 2010-02-16
65862-0420-20 20 TABLET in 1 BOTTLE (65862-420-20) Sulfamethoxazole and Trimethoprim Aurobindo Pharma Limited 2010-02-16
Observed labelers: Amneal Pharmaceuticals LLC (9) · Amneal Pharmaceuticals of New York LLC (9) · Aurobindo Pharma Limited (8) · AvKARE (4) · Chartwell RX, LLC (4) · Cronus Pharma LLC (4) · +8 more — 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.