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 AND GUAIFENESIN
Labeler / manufacturerCVS PHARMACY
RouteORAL
Drug classExpectorant
Product NDC69842-937
Label effective date2026-08-19
Official product label reference
CVS Mucus Relief DM Maximum Strength — CVS PHARMACY
This page contains 15 source sections for DEXTROMETHORPHAN HBR AND GUAIFENESIN, oral route. Label set 0ae0c244-e019-4b35-890c-8e15e3d3f7ce, version 8.
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
Active ingredients (in each 20 mL) Purposes Dextromethorphan HBr 20 mg Cough suppressant Guaifenesin 400 mg Expectorant
Table text from source:
| Active ingredients (in each 20 mL) | Purposes
| Dextromethorphan HBr 20 mg | Cough suppressant
| Guaifenesin 400 mg | Expectorant
Dosage and administration — label text
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
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) 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 that lasts. 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.
Unclassified section
Drug Facts
Active ingredient
Active ingredients (in each 20 mL) Purposes Dextromethorphan HBr 20 mg Cough suppressant Guaifenesin 400 mg Expectorant
Table text from source:
| Active ingredients (in each 20 mL) | Purposes
| Dextromethorphan HBr 20 mg | Cough suppressant
| Guaifenesin 400 mg | Expectorant
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)
While using this medicine
When using this product do not use more than directed
When to stop use and seek help
Stop use and ask a doctor if ▪ cough lasts more than 7 days, comes back, or occurs with fever, rash or persistent headache that lasts. 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 at 1-800-222-2222.
Storage and handling
Other information • each 20 mL contains: sodium 8 mg • low sodium • store at room temperature • do not refrigerate • dosing cup provided
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.