Label: MAXIMUM STRENGTH MUCUS RELIEF DM- dextromethorphan hydrobromide and guaifenesin liquid

  • Category: HUMAN OTC DRUG LABEL
  • DEA Schedule: None

Drug Label Information

Updated October 28, 2025

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  • SPL UNCLASSIFIED SECTION

    Drug Facts

  • ACTIVE INGREDIENT

    Active ingredients (in each 20 mL)Purposes

    Dextromethorphan HBr 20 mg

    Cough suppressant

    Guaifenesin 400 mg

    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
  • 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)

    When using this product

    • do not use more than directed

    Stop use and ask a doctor if

    • cough lasts more than 7 days, comes back, or occurs with 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 at 1-800-222-2222.

  • Directions

    • do not take more than 6 doses in any 24-hour period
    • measure only with dosing cup provided
    • do not use dosing cup with other products
    • dose as follows or as directed by a doctor
    • mL = milliliter
    • adults and children 12 years and older:20 mL every 4 hours
    • children under 12 years of age:Do not use
  • Other information

    • each 20 mL contains:sodium 8 mg
    • low sodium
    • store at room temperature
    • do not refrigerate
    • dosing cup provided
  • Inactive ingredients

    anhydrous citric acid, edetate disodium, FD&C blue#1, FD&C red #40, natural and artificial flavor, potassium citrate , propylene glycol, propyl gallate, purified water, sodium benzoate, sorbitol, sucralose, xanthan gum.

  • Questions or comments?

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  • PRINCIPAL DISPLAY PANEL

    NDC# 49035-839-06

    *Compare to the active ingredients in Maximum Strength Mucinex ®Fast-Max ™DM max

    Maximum Strength ‡

    Mucus Relief DM

    • Dextromethorphan HBr Cough Suppressant
      Guaifenesin Expectorant
    • Multi Symptom Relief
    • Chest Congestion
    • Cough
    • Thins & loosens Mucus
    • 4 Hour Dosing
    • For Ages 12+

    6 FL OZ (180 mL)

    Tamper evident: do not use if printed seal under cap is broken or missing.

    ‡Maximum Strength per 4 hour dose.

    DISTRIBUTED BY: Walmart Inc.,

    Bentonville, AR 72716

    *This product is not manufactured or distributed by Reckitt Benckiser, the owner of the registered trademark Maximum Strength Mucinex ®Fast -Max ®DM Max.

    Equate Maximum Strength Mucus Relief DM 6FL OZ
  • INGREDIENTS AND APPEARANCE
    MAXIMUM STRENGTH MUCUS RELIEF DM 
    dextromethorphan hydrobromide and guaifenesin liquid
    Product Information
    Product TypeHUMAN OTC DRUGItem Code (Source)NDC:49035-839
    Route of AdministrationORAL
    Active Ingredient/Active Moiety
    Ingredient NameBasis of StrengthStrength
    DEXTROMETHORPHAN HYDROBROMIDE (UNII: 9D2RTI9KYH) (DEXTROMETHORPHAN - UNII:7355X3ROTS) DEXTROMETHORPHAN HYDROBROMIDE20 mg  in 20 mL
    GUAIFENESIN (UNII: 495W7451VQ) (GUAIFENESIN - UNII:495W7451VQ) GUAIFENESIN400 mg  in 20 mL
    Inactive Ingredients
    Ingredient NameStrength
    ANHYDROUS CITRIC ACID (UNII: XF417D3PSL)  
    EDETATE DISODIUM (UNII: 7FLD91C86K)  
    FD&C BLUE NO. 1 (UNII: H3R47K3TBD)  
    FD&C RED NO. 40 (UNII: WZB9127XOA)  
    POTASSIUM CITRATE (UNII: EE90ONI6FF)  
    PROPYLENE GLYCOL (UNII: 6DC9Q167V3)  
    PROPYL GALLATE (UNII: 8D4SNN7V92)  
    WATER (UNII: 059QF0KO0R)  
    SODIUM BENZOATE (UNII: OJ245FE5EU)  
    SORBITOL (UNII: 506T60A25R)  
    SUCRALOSE (UNII: 96K6UQ3ZD4)  
    XANTHAN GUM (UNII: TTV12P4NEE)  
    Product Characteristics
    ColorredScore    
    ShapeSize
    FlavorImprint Code
    Contains    
    Packaging
    #Item CodePackage DescriptionMarketing Start DateMarketing End Date
    1NDC:49035-839-06180 mL in 1 BOTTLE; Type 0: Not a Combination Product05/01/2018
    Marketing Information
    Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
    OTC Monograph DrugM01205/01/2018
    Labeler - Wal-Mart Stores,Inc., (051957769)
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