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Codeine phosphate 1.5 MG/ML / guaifenesin 45 MG/ML Oral Solution [Mar-cof CG] — RxCUI 995443

Name: Codeine phosphate 1.5 MG/ML / guaifenesin 45 MG/ML Oral Solution [Mar-cof CG] (RxCUI 995443)
Creator: Brian Staiger, PharmD

RxNorm drug concept · Semantic branded drug

RxCUI 995443 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

RxCUI995443

Official nameCodeine phosphate 1.5 MG/ML / guaifenesin 45 MG/ML Oral Solution [Mar-cof CG]

Concept typeSemantic branded drug (SBD)

RxNorm statusCurrent RxNorm concept

Also known asMar-cof CG (codeine phosphate 7.5MG / guaifenesin 225 MG) per 5 ML Oral Solution; MAR-COF CG 7.5 MG / 225 MG in 5 mL Oral Solution

FDA products mapped1

Package NDCs mapped1

RxNorm release07/06/2026

Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

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

📗 Our plain-language guide HelloPharmacist

Codeine Sulfate tablets are used to treat mild to moderate pain — think post-injury pain or pain after a procedure — when over-the-counter options like ibuprofen or acetaminophen h...
You take codeine Sulfate tablets by mouth, typically every 4 hours as needed for pain. The good news is you can take it with or without food — studies show a meal doesn't meaningfu...
How do I take it, and does it matter if I take it with food?
The most common things people notice are drowsiness, dizziness, nausea, constipation, and sweating — these are typical opioid effects. The ones to take seriously and call 911 about...

📖 Read our full Codeine guide →

🕸️ Concept Web — How Codeine phosphate 1.5 MG/ML / guaifenesin 45 MG/... 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 Codeine phosphate 1.5 MG/ML / guaifenesin 45 MG/ML Oral Solution [Mar-cof CG] RxCUI 995443 Semantic branded drug · SBD

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

Ingredients 4

The active substance itself — no strength, form, or brand attached yet.
- Codeine 2670 IN
- Guaifenesin 5032 IN
- Codeine / guaifenesin 214442 MIN
- Codeine phosphate 2672 PIN
Brand names 1

The same medicine's trade names. A brand name alone says nothing about strength or form.
- Mar-cof CG 831953 BN
Dose forms 13

The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.
- Codeine / guaifenesin Oral Solution 371616 SCDF
- Codeine phosphate / guaifenesin Oral Solution 2649095 SCDFP
- Codeine / guaifenesin Oral Liquid Product 1154815 SCDG
- Codeine / guaifenesin Oral Product 1154816 SCDG
- Codeine phosphate / guaifenesin Oral Liquid Product 2661357 SCDGP
- Codeine phosphate / guaifenesin Oral Product 2663315 SCDGP
- Codeine / guaifenesin Oral Solution [Mar-cof CG] 832714 SBDF
- Codeine phosphate / guaifenesin Oral Solution [Mar-cof CG] 2655832 SBDFP
- +5 more in this family
Clinical & branded drugs 4

Ingredient + strength + dose form. These are the concepts real FDA products actually carry.
- Codeine phosphate 1.5 MG/ML / guaifenesin 45 MG/ML Oral Solution 995441 SCD
- Codeine phosphate 1.5 MG/ML 891481 SCDC
- Guaifenesin 45 MG/ML 335407 SCDC
- Codeine phosphate 1.5 MG/ML / guaifenesin 45 MG/ML [Mar-cof CG] 995442 SBDC

Showing up to 8 concepts per family — 17 of 22 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

Codeine phosphate 1.5 MG/ML / guaifenesin 45 MG/ML Oral Solution SCD · 995441
Codeine phosphate 1.5 MG/ML SCDC · 891481
Guaifenesin 45 MG/ML SCDC · 335407
Codeine / guaifenesin Oral Solution SCDF · 371616
Codeine phosphate / guaifenesin Oral Solution SCDFP · 2649095
Codeine / guaifenesin Oral Liquid Product SCDG · 1154815
Codeine / guaifenesin Oral Product SCDG · 1154816
Codeine phosphate / guaifenesin Oral Liquid Product SCDGP · 2661357
Codeine phosphate / guaifenesin Oral Product SCDGP · 2663315

Brand-Name Concepts

Codeine phosphate 1.5 MG/ML / guaifenesin 45 MG/ML [Mar-cof CG] SBDC · 995442
Codeine / guaifenesin Oral Solution [Mar-cof CG] SBDF · 832714
Codeine phosphate / guaifenesin Oral Solution [Mar-cof CG] SBDFP · 2655832
Mar-cof CG Oral Liquid Product SBDG · 1180404
Mar-cof CG Oral Product SBDG · 1180405
Mar-cof CG BN · 831953

📦 FDA Products & Package NDCs

1 product · 1 package NDC

1 package NDC map to RxCUI 995443 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
00682-0475-16	473 mL in 1 BOTTLE (0682-0475-16)	MAR-COF CG Expectorant	Marnel Pharmaceuticals, LLC	2008-12-01

Observed labelers: Marnel Pharmaceuticals, LLC (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.