Source label information, not individualized medical advice. This record applies to the product and labeler shown below. Compare the exact formulation, strength and country with your package and the current source label.
Generic nameDEXTROMETHORPHAN HBR, GUAIFENESIN
Labeler / manufacturerDOLGENCORP, LLC
RouteORAL
Drug classExpectorant
Product NDC55910-146
Label effective date2026-08-21
Official product label reference
Mucus Relief DM Max — DOLGENCORP, LLC
This page contains 13 source sections for DEXTROMETHORPHAN HBR, GUAIFENESIN, oral route. Label set 5be4e730-3cd6-414e-a23b-f6cad8088750, version 3.
Label records can cover multiple strengths or package sizes. A label listing does not by itself establish FDA approval or current market availability. Check the source and application history for this specific product.
Uses described in the label
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
Purpose
Purpose Cough suppressant Expectorant
Dosage and administration — label text
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
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.
Active ingredient
Active ingredients (in each 20 mL) Dextromethorphan HBr 20 mg Guaifenesin 400 mg
Do not use
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
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 to stop use and seek help
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.
Pregnancy or breast feeding
If pregnant or breast-feeding, ask a health professional before use.
Child safety
Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
Storage and handling
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
The text is extracted from a US structured product label. Tables are represented as text where supplied; formatting and illustrations may be lost. A missing section does not mean a risk is absent. This reference has not been independently reviewed by a clinician and is not a live safety-alert service.