Product Information
GUAIFENESIN 100 MG/5 ML LIQUID is a generic product labeled by Method Pharmaceuticals LLC, priced at $0.0133 per ML under NDC 58657050916. Its NADAC has been published 499 times since Jul 13, 2016.
Strength
100 mg/5mL
Manufacturer
Method Pharmaceuticals LLCNDC
58657050916
Classification
Generic
Dosage Form
LIQUID
Route
ORAL
Last Updated
1/21/2026
Active Ingredients
GUAIFENESINApproval Type
OTC MONOGRAPH DRUG
FDA Application
M012On Market Since
2/9/2016
Pharmacological Classes
Price Statistics
The NADAC for GUAIFENESIN 100 MG/5 ML LIQUID has been published 499 times since Jul 13, 2016, and over the history we have for it it has risen 139.1%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0133 per ML |
|---|---|
| All-time high | $0.0154 (Feb 10, 2021) |
| All-time low | $0.0050 (Nov 23, 2016) |
| 52-week high | $0.0134 |
| 52-week low | $0.0128 |
| Median price | $0.0095 |
| Average price | $0.0093 |
| Largest weekly change | +40.8% (Jun 23, 2021) |
| Weeks tracked | 499 |
| Tracking since | Jul 13, 2016 |
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 14% 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 GUAIFENESIN 100 MG/5 ML LIQUID?
The current National Average Drug Acquisition Cost (NADAC) for GUAIFENESIN 100 MG/5 ML LIQUID, manufactured by Method Pharmaceuticals LLC, is $0.0133 per ML (NDC 58657050916), effective Jan 28, 2026.
How has the price of GUAIFENESIN 100 MG/5 ML LIQUID changed over time?
Over the history we have for it, the NADAC for GUAIFENESIN 100 MG/5 ML LIQUID has risen 139.1%. It has been tracked across 499 weekly CMS publications since Jul 13, 2016.
What are the highest and lowest recorded NADAC prices for GUAIFENESIN 100 MG/5 ML LIQUID?
Since Jul 13, 2016, the NADAC for GUAIFENESIN 100 MG/5 ML LIQUID has ranged from a low of $0.0050 (Nov 23, 2016) to a high of $0.0154 (Feb 10, 2021), with a median of $0.0095 per ML.
Are there cheaper alternatives to GUAIFENESIN 100 MG/5 ML LIQUID?
Yes. 5 NADAC-published products share the same active ingredient, strength, and dosage form. The lowest-priced option, GUAIFENESIN 100 MG/5 ML SOLN, is $0.0115 per ML — about 14% below GUAIFENESIN 100 MG/5 ML LIQUID.
Who manufactures GUAIFENESIN 100 MG/5 ML LIQUID?
GUAIFENESIN 100 MG/5 ML LIQUID (NDC 58657050916) is labeled by Method Pharmaceuticals LLC, and CMS classifies it as a generic product.
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Same classification