Guaifenesin and Dextromethorphan Hydrobromide 10 mg/5mL; 100 mg/5mL Syrup, 237 mL — NDC 58657-505-08 (Billing 58657-0505-08)
This is a package of 237 mL of Guaifenesin and Dextromethorphan Hydrobromide 10 mg/5mL; 100 mg/5mL Syrup from Method Pharmaceuticals, marketed since Jun 2016 and currently FDA-listed; retail pharmacies pay about $0.0240 per mL (NADAC). It is this product's only package size.
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification
- GSN (GCN sequence number): 016414
- GCN: 53495
- GPI-14 (Medi-Span): 43997002521220
- HICL (First Databank): 000223
- AHFS class code: 48:08.00.00
- RxCUI (RxNorm): 996520
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
- RxNorm (NLM RxNav) · catalog refreshed Oct 1, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 1, 2026
RxNorm drug class
This medicine belongs to the Uncompetitive N-methyl-D-aspartate Receptor Antagonist class.
Where does this data come from?
- RxClass (NLM) · catalog refreshed Oct 1, 2026
Clinical
Dextromethorphan is used to temporarily relieve cough caused by the common cold, the flu, or other conditions. Dextromethorphan will relieve a cough but will not treat the cause of the cough or speed recovery. Dextromethorphan is in a class of medications called antitussives. It works by decreasing activity in the part of the brain that causes coughing.
Read the full MedlinePlus article ↗- It helps loosen mucus and makes coughs more productive. It also temporarily eases cough from minor throat and bronchial irritation, like with a cold or inhaled irritants.
- Swallow them whole with a full glass of water. Don’t crush, chew or break them. You can take them with or without food, about every 12 hours as your label directs.
- How do I take the extended-release tablets?
- The extended-release tablets are not for children under 12. Some liquid products are made for children, so check that product’s label and ask me if you’re unsure.
Patient education
Supplement & herbal interactions
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
Ask a licensed pharmacist directly — free, answered by our team.
Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $0.024 | $5.69 / 237 ml |
| Medicaid paysCMS SDUD · 12 mo | $0.0781 | $18.51 / 237 ml |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
Where does this data come from?
- CMS NADAC weekly file · file of Sep 30, 2026
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · through Q4 2025
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Marketing end | Status |
|---|---|---|---|---|
| 58657-0505-08 You're viewing this Main listing | 237 mL in 1 BOTTLE, PLASTIC | 2016-06-14 | — | Active |
Therapeutic equivalents
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Sep 3, 2026
- CMS NADAC weekly file · file of Sep 30, 2026
Availability & generic status
We did not find an FDA-approved generic match for this exact strength, form and route.
Where does this data come from?
- FDA Orange Book · refreshed Sep 3, 2026
What it looks like
Where does this data come from?
- FDA label on DailyMed · label index refreshed Oct 1, 2026
Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII XF417D3PSL
Anhydrous citric acid is a sour, crystalline powder derived from citric acid with water removed. In medicines, it acts as a buffer to control pH, adds tartness to improve taste, and helps tablets disintegrate.
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UNII PDC6A3C0OX
Glycerin is a clear, thick liquid derived from plant oils or fats. It acts as a humectant to retain moisture, a sweetener, and a solvent in medications.
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UNII D65DG142WK
Maltitol is a sugar alcohol made by hydrogenating maltose. It's used as a sweetener and filler in medicines to improve taste and add bulk to tablets and capsules.
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UNII 6DC9Q167V3
Propylene glycol is a clear liquid derived from petroleum or vegetable sources. It acts as a solvent, humectant, and preservative in medicines, helping dissolve active ingredients and maintain product stability.
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UNII SB8ZUX40TY
Saccharin sodium is an artificial sweetener made from saccharin salt. It's added to medicines to improve taste, especially in liquid formulations for children or bitter drugs.
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UNII 506T60A25R
Sorbitol is a natural sugar alcohol derived from glucose. It serves as a sweetener, humectant, and bulking agent in medications to improve taste and help maintain moisture in the product.
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UNII B22547B95K
A salt derived from citric acid that helps maintain the proper acid-base balance in the medicine. It's used as a buffer to keep the product stable and at the right pH level.
7 inactive ingredients listed in the exact product block matched to this NDC.
Label-section wording can be broader than the structured product block and may mention additional formulation ingredients.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.- FDA label on DailyMed · label index refreshed Oct 1, 2026
- FDA openFDA NDC Directory · synced Oct 1, 2026
Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
Manufacturer & labeler
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- Drugs@FDA
FDA label — Drug Facts FDA SPL
🎯 Indications and Usage ▾
Uses temporarily relieves cough due to minor throat and bronchial irritation helps loosen phlegm (mucus) and thin bronchial secretions to make coughs more productive
⏱️ Dosage and Administration ▾
Directions do not take more than 6 doses in any 24-hour period. This adult product is not intended for use in children under 12 years of age adults and children 12 years and over 2 teaspoonfuls (TSP) every 4 hours children under 12 years DO NOT USE
⚠️ Warnings ▾
Warnings Do not use if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product.
🧪 Active Ingredient ▾
Active ingredients Dextromethorphan HBr, USP 10 mg Guaifenesin, USP 100 mg
🧪 Inactive Ingredients ▾
Inactive ingredients Citric Acid Anhydrous, USP; Sodium Citrate Dihydrate, USP; Sodium Saccharin, USP; Propylene Glycol, USP; Grape Flavor; Sorbitol Solution, USP; Glycerin, USP; Maltitol Solution, NF
🎯 Purpose ▾
Purpose Cough suppressant Expectorant
📄 Ask a Doctor Before Use If ▾
Ask a doctor before use if you have persistent cough or chronic cough such as occurs with smoking, asthma, chronic bronchitis, emphysema cough accompanied by excessive phlegm (mucus)
📄 Stop Use and Ask a Doctor If ▾
Stop use and ask a doctor if cough lasts more than 7 days or occurs with fever, rash, or headaches that lasts. This could be a sign of a serious condition hypersensitive to any ingredients
🤰 If Pregnant or Breast-Feeding ▾
If pregnant or breast-feeding, ask a health professional before use.
📄 Keep Out of Reach of Children ▾
Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
📄 Questions or Comments ▾
Questions 1-877-250-3427
📄 Package Label / Principal Display Panel ▾
Principal Display Panel Method Pharmaceuticals NDC 58657-505-08 Guaifenesin and Dextromethorphan Hydrobromide Syrup 100 mg/10 mg/5 mL Expectorant Cough Suppressant Grap Flavor Non Drowsy • Alcohol Free FOR AGES 12 AND UP 8 fl. oz. (237 mL) Manufactured For: Method Pharmaceuticals, LLC Fort Worth, TX 76118 Rev. 06/2016 label