Product Information
CHEST CONGEST RLF 400 MG TAB is a generic product labeled by Rugby Laboratories, priced at $0.0681 per EA under NDC 00536131108. Its NADAC has been published 267 times since May 19, 2021.
Strength
400 mg/1
Manufacturer
Rugby LaboratoriesNDC
00536131108
Classification
Generic
Dosage Form
TABLET
Route
ORAL
Last Updated
6/17/2026
Active Ingredients
GUAIFENESINApproval Type
OTC MONOGRAPH DRUG
FDA Application
M012On Market Since
9/1/2020
Pharmacological Classes
Price Statistics
The NADAC for CHEST CONGEST RLF 400 MG TAB has been published 267 times since May 19, 2021, and over the history we have for it it has declined 2.2%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0681 per EA |
|---|---|
| All-time high | $0.0744 (Nov 13, 2024) |
| All-time low | $0.0560 (Apr 19, 2023) |
| 52-week high | $0.0691 |
| 52-week low | $0.0661 |
| Median price | $0.0677 |
| Average price | $0.0672 |
| Largest weekly change | +13.5% (May 17, 2023) |
| Weeks tracked | 267 |
| Tracking since | May 19, 2021 |
Generic Alternatives
The matcher finds 5 NADAC-published products sharing this drug's active ingredient, strength, and dosage form across 5 manufacturers (up to 10 shown below). Switching to the cheapest would cut per-unit acquisition cost by roughly 3% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Frequently asked questions
What is the NADAC price of CHEST CONGEST RLF 400 MG TAB?
The current National Average Drug Acquisition Cost (NADAC) for CHEST CONGEST RLF 400 MG TAB, manufactured by Rugby Laboratories, is $0.0681 per EA (NDC 00536131108), effective Jun 24, 2026.
How has the price of CHEST CONGEST RLF 400 MG TAB changed over time?
Over the history we have for it, the NADAC for CHEST CONGEST RLF 400 MG TAB has declined 2.2%. It has been tracked across 267 weekly CMS publications since May 19, 2021.
What are the highest and lowest recorded NADAC prices for CHEST CONGEST RLF 400 MG TAB?
Since May 19, 2021, the NADAC for CHEST CONGEST RLF 400 MG TAB has ranged from a low of $0.0560 (Apr 19, 2023) to a high of $0.0744 (Nov 13, 2024), with a median of $0.0677 per EA.
Are there cheaper alternatives to CHEST CONGEST RLF 400 MG TAB?
Yes. 5 NADAC-published products share the same active ingredient, strength, and dosage form. The lowest-priced option, HM CHEST CONGEST RLF 400 MG TB, is $0.0661 per EA — about 3% below CHEST CONGEST RLF 400 MG TAB.
Who manufactures CHEST CONGEST RLF 400 MG TAB?
CHEST CONGEST RLF 400 MG TAB (NDC 00536131108) is labeled by Rugby Laboratories, and CMS classifies it as a generic product.
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