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DM Maximum
dextromethorphan hbr, guaifenesin · DM Maximum is an expectorant (over-the-counter) containing dextromethorphan hbr, guaifenesin, made by CVS WOONSOCKET PRESCRIPTION CENTER, INCORPORATED.
- Type
- Over the counter
- Drug class
- Expectorant
- Route
- Oral
- Manufacturers
- 1
helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive temporarily relieves: cough due to minor throat and bronchial irritation as may occur with the common cold or...
Related recalls
FDA drug recalls that name this drug or its active ingredient
- Class IIIDrug02/12/2025Guaifenesin and Codeine Phosphate Oral Solution USP, 100mg/10 mg per 5 mL, 16 fl oz (473 ml) bottles, PAI...PAI Holdings, LLC. dba Pharmaceutical Associates Inc · Superpotent; sodium benzoate preservative
- Class IIDrug12/18/2024Kirkland Severe Cold & Flu Plus Congestion: Day - 112 coated caplets blister pack; (Acetaminophen 325mg...LNK International, Inc. · CGMP Deviations: Released product should have been rejected.
- Class IIDrug11/27/2024Guaifenesin Dextromethorphan Syrup, 200 mg/20mg per 10 mL, Major Pharmaceuticals 8401 Bearing Drive, Suite...The Harvard Drug Group LLC dba Major Pharmaceuticals and Rugby Laboratories · 2 products · Failed Impurity/Degradation Specifications
- Class IIIDrugOngoing11/13/2024Adult Cough and Chest Congestion (Dextromethorphan HBr USP 20 mg, Guaifenesin USP 400mg), packaged in 4 oz...Denison Pharmaceuticals, LLC · 2 products · Crystallization: Lack of uniformity - a change in texture, chunky...
- Class IIDrugOngoing03/20/2024Broncochem Cold & Flu Syrup Kids (acetaminophen, guaifenesin, phenylephrine HCl), packaged in 120 mL...Global Corporation · Stability testing failures for one or two of the four active...
Active ingredients
(in each 20 mL) Dextromethorphan HBr 20 mg Guaifenesin 400 mg
Purpose
Cough suppressant Expectorant
Uses
Helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive temporarily relieves: cough due to minor throat and bronchial irritation as may occur with the common cold or inhaled irritants the intensity of coughing the impulse to cough to help you get to sleep
Directions
Do not take more than directed do not take more than 6 doses in any 24-hour period mL = milliliter only use the dose cup provided dose as follows or as directed by a doctor adults and children 12 years and over: 20 mL in dosing cup provided every 4 hours children under 12 years: do not use
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. Ask a doctor before use if you have persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough that occurs with too much phlegm (mucus) Stop use and ask a doctor if cough persists more than 1 week, tends to recur, or is accompanied by a fever, rash, or persistent headache. These could be signs of a serious condition. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
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.
Ask a doctor before use
Persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough that occurs with too much phlegm (mucus)
Stop use and ask a doctor
Cough persists more than 1 week, tends to recur, or is accompanied by a fever, rash, or persistent headache. These could be signs of a serious condition.
Pregnancy or breastfeeding
Ask a health professional before use.
Keep out of reach of children
In case of overdose, get medical help or contact a Poison Control Center right away.
Other information
Each 20 mL contains: sodium 6 mg store at 25°C (77°F); excursions permitted between 15°-30°C (59°-86°F) use by expiration date on package
Inactive ingredients
Anhydrous citric acid, FD&C red #40, flavors, glycerin, propylene glycol, purified water, sodium benzoate, sodium citrate dihydrate, sorbitol solution, sucralose, xanthan gum
Questions?
1-800-426-9391
Forms and strengths
From the FDA NDC Directory · 1 product codes
| Dosage form | Strength | Route | NDCs |
|---|---|---|---|
| Solution | 20 mg/20mL / 400 mg/20mL | oral | 1 |
Manufacturers and labels
1 FDA label
- CVS WOONSOCKET PRESCRIPTION CENTER, INCORPORATEDShown hereM012 · Label 07/27/2026 · NDC 51316-310Full label
DM Maximum: common questions
- What is DM Maximum used for?
- helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive temporarily relieves: cough due to minor throat and bronchial irritation as may occur with the common cold or...
- Is DM Maximum a prescription drug?
- No. DM Maximum is sold over the counter (OTC) without a prescription.
- Are there other products with the same active ingredient as DM Maximum?
- Yes. Other FDA-listed products with the same active ingredients include Guaifenesin and Dextromethorphan Hbr, Mucus Relief DM, Mucus Relief DM Extended Release Caplets, Mucus Relief Dm.
- Who makes DM Maximum?
- CVS WOONSOCKET PRESCRIPTION CENTER, INCORPORATED lists DM Maximum with the FDA.
Source: U.S. Food and Drug Administration, openFDA drug label (SPL) and NDC Directory · Last updated 07/27/2026 · Label text is shown as published by the manufacturer. Not medical advice