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Cvs Mucus Relief Dm

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Active ingredients
  • Guaifenesin 400 mg/20 mL
  • Dextromethorphan Hydrobromide 20 mg/20 mL
Other brand names
Drug classes
Expectorant, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist
Dosage form
Solution
Route
Oral
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2020
Label revision date
December 10, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredients
  • Guaifenesin 400 mg/20 mL
  • Dextromethorphan Hydrobromide 20 mg/20 mL
Other brand names
Drug classes
Expectorant, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist
Dosage form
Solution
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2020
Label revision date
December 10, 2025
Manufacturer
CVS PHARMACY
Registration number
M012
NDC root
69842-937
Drug Information (PDF)
Prescribing information, PDF file
Packaging Info
Packaging & NDC Codes

If you are a healthcare professional or from the pharmaceutical industry please visit this version.

If you are a consumer or patient please visit this version.

Drug Overview

DM Max is a medication designed to help you manage cough and chest congestion. It works by loosening phlegm (mucus) and thinning bronchial secretions, making it easier to clear your airways. This product contains two active ingredients: dextromethorphan HBr, which acts as a cough suppressant to temporarily relieve your urge to cough, and guaifenesin, an expectorant that helps make your coughs more productive by clearing mucus.

DM Max provides multi-symptom relief, addressing both cough and chest congestion, and is suitable for individuals aged 12 and older. It is formulated for maximum strength and is intended to help you feel more comfortable, especially when dealing with minor throat and bronchial irritation from common colds or other irritants.

Uses

This medication is designed to help you breathe easier by loosening phlegm (mucus) and thinning bronchial secretions. This action helps clear out bothersome mucus from your airways, making your coughs more productive.

You can also use this medication to temporarily relieve coughing caused by minor throat and bronchial irritation, which can happen with the common cold or from inhaling irritants. It can help reduce the intensity of your cough and lessen the urge to cough, making it easier for you to get a good night's sleep.

Dosage and Administration

It's important to follow the correct dosage when using this medication to ensure your safety and effectiveness. For adults and children aged 12 years and older, you should take 20 mL every 4 hours, but remember not to exceed 6 doses in a 24-hour period. If you have a doctor’s instructions, be sure to follow those as well.

When measuring your dose, use only the dosing cup that comes with the medication. Avoid using this cup for any other products to ensure accurate measurement. If you have children under 12 years of age, this medication is not recommended for them. Always prioritize safety and consult with a healthcare professional if you have any questions or concerns.

What to Avoid

You should avoid using this product if you are currently taking a prescription monoamine oxidase inhibitor (MAOI), which is a type of medication used for depression, psychiatric, or emotional conditions, or Parkinson's disease. Additionally, you should not use this product for at least two weeks after stopping an MAOI. If you're unsure whether your prescription includes an MAOI, please consult your doctor or pharmacist before using this product.

It's also important to follow the dosage instructions carefully and not exceed the recommended amount. Misusing or taking more than directed can lead to serious health issues, including dependence (a condition where your body becomes reliant on a substance). Always prioritize your safety and well-being by adhering to these guidelines.

Side Effects

You should be aware of some important side effects and warnings associated with this medication. Do not use it if you are currently taking a monoamine oxidase inhibitor (MAOI), which is a type of medication for depression or certain other conditions, or if you have stopped taking an MAOI within the last two weeks. If you have a persistent cough due to smoking, asthma, chronic bronchitis, or emphysema, or if your cough is accompanied by excessive mucus, consult your doctor before using this product.

If your cough lasts more than seven days, returns, or is accompanied by fever, rash, or a persistent headache, stop using the medication and seek medical advice, as these may indicate a more serious condition. Additionally, if you are pregnant or breastfeeding, it's important to consult a healthcare professional before use. Always keep this medication out of reach of children, and in case of an overdose, contact medical help or a Poison Control Center immediately at 1-800-222-2222.

Warnings and Precautions

You should not use this product if you are currently taking a prescription monoamine oxidase inhibitor (MAOI), which is a type of medication used for depression or certain other conditions. If you have recently stopped taking an MAOI, wait at least two weeks before using this product. If you're unsure whether your medication contains an MAOI, please consult your doctor or pharmacist.

Before using this product, it's important to ask your doctor if you have a persistent cough due to smoking, asthma, chronic bronchitis, or emphysema, or if your cough is accompanied by excessive mucus. Always follow the dosage instructions carefully and do not exceed the recommended amount.

If your cough lasts more than seven days, returns, or is accompanied by a fever, rash, or a persistent headache, stop using the product and contact your doctor, as these may be signs of a more serious condition. Keep this product out of reach of children, and in case of an overdose, seek medical help immediately or contact a Poison Control Center at 1-800-222-2222.

Overdose

If you suspect an overdose, it’s crucial to seek medical help immediately. You can contact a Poison Control Center at 1-800-222-2222 for guidance. Signs of an overdose can vary, but they may include unusual drowsiness, confusion, or difficulty breathing.

Always take overdosing seriously. If you notice any of these symptoms or have concerns about your health, don’t hesitate to reach out for help right away. Your safety is the top priority.

Pregnancy Use

If you are pregnant or breastfeeding, it’s important to consult with a healthcare professional before using this medication. They can provide guidance on whether it’s safe for you and your baby. Always prioritize your health and the health of your child by seeking expert advice.

Lactation Use

If you are pregnant or breastfeeding, it’s important to consult with a healthcare professional before using any medication. This ensures that you understand any potential risks and can make informed decisions about your health and the health of your baby. Always prioritize open communication with your doctor regarding your breastfeeding journey.

Pediatric Use

If you are considering this medication for your child, it's important to know that it is not recommended for children under 12 years of age. For those who are 12 years and older, the typical dosage is 20 mL every 4 hours. Always ensure you follow these guidelines to keep your child safe and healthy.

Geriatric Use

While there is no specific information available about the use of this medication in older adults, it’s important to approach any new treatment with caution. If you or a loved one is an older adult, it’s always a good idea to discuss any medications with a healthcare provider. They can help ensure that the treatment is safe and appropriate, considering any unique health needs or conditions that may be present.

Since there are no dosage adjustments or special precautions mentioned for elderly patients, your healthcare provider will be the best resource for personalized advice. Always keep them informed about any other medications or health issues to ensure safe and effective care.

Renal Impairment

If you have kidney problems, it's important to know that the drug insert does not provide specific information about dosage adjustments, special monitoring, or safety considerations for your condition. This means that there are no tailored guidelines for how this medication should be used if you have renal impairment (kidney issues).

Always consult your healthcare provider for personalized advice and to ensure that any medication you take is safe and appropriate for your health situation. They can help you understand how to manage your treatment effectively while considering your kidney health.

Hepatic Impairment

If you have liver problems, it's important to know that the drug insert does not provide specific information about dosage adjustments, special monitoring, or precautions for your condition. This means that there are no tailored guidelines for how this medication may affect you differently due to your liver health.

Always consult your healthcare provider for personalized advice and to discuss any concerns you may have regarding your liver condition and the use of this medication. They can help ensure that you receive the safest and most effective treatment.

Drug Interactions

It's important to be cautious when taking dextromethorphan, especially if you are currently using a prescription monoamine oxidase inhibitor (MAOI) or have stopped taking one within the last two weeks. Combining these medications can lead to serious interactions that may affect your health.

Always discuss any medications you are taking, including over-the-counter drugs like dextromethorphan, with your healthcare provider. They can help ensure that your treatments are safe and effective, and they can provide guidance tailored to your specific health needs.

Storage and Handling

To ensure the best performance of your product, store it at room temperature. It's important to avoid refrigerating it, as this can affect its effectiveness. When using the product, a dosing cup is provided to help you measure the correct amount safely and accurately.

Always handle the product with clean hands to maintain its integrity. Following these simple storage and handling guidelines will help you use the product safely and effectively.

Additional Information

You should take this medication orally, with the recommended dose being 20 mL every 4 hours for adults and children aged 12 years and older. If your child is under 12 years old, do not use this medication.

If you are pregnant or breastfeeding, it's important to consult a healthcare professional before using this product. Always keep it out of reach of children, and in case of an overdose, seek medical help immediately or contact a Poison Control Center at 1-800-222-2222.

FAQ

What is DM Max used for?

DM Max helps loosen phlegm (mucus) and thin bronchial secretions, making coughs more productive and relieving cough due to minor throat and bronchial irritation.

What are the active ingredients in DM Max?

DM Max contains DEXTROMETHORPHAN HBr, a cough suppressant, and GUAIFENESIN 400 mg, an expectorant.

Who can use DM Max?

DM Max is intended for adults and children aged 12 years and older. It should not be used by children under 12.

How should I take DM Max?

The recommended dose for adults and children 12 years and older is 20 mL every 4 hours, not exceeding 6 doses in 24 hours.

Are there any contraindications for using DM Max?

Do not use DM Max if you are currently taking a prescription monoamine oxidase inhibitor (MAOI) or have taken one within the last 2 weeks.

What should I do if my cough lasts more than 7 days?

If your cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache, stop using DM Max and consult a doctor.

Can I use DM Max if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, consult a health professional before using DM Max.

What should I do in case of an overdose?

In case of overdose, seek medical help or contact a Poison Control Center immediately at 1-800-222-2222.

How should I store DM Max?

Store DM Max at room temperature and do not refrigerate.

Packaging Info

Below are the non-prescription pack sizes of Cvs Mucus Relief Dm (dextromethorphan hbr and guaifenesin). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Cvs Mucus Relief Dm.
Details

Drug Information (PDF)

This file contains official product information for Cvs Mucus Relief Dm, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Description

No description information is available.

Uses and Indications

This drug is indicated for the relief of cough associated with minor throat and bronchial irritation, which may occur due to the common cold or inhaled irritants. It aids in loosening phlegm (mucus) and thinning bronchial secretions, thereby facilitating the expulsion of bothersome mucus and enhancing the productivity of coughs.

Additionally, this drug temporarily alleviates the intensity of coughing and reduces the impulse to cough, which may assist patients in achieving restful sleep.

There are no teratogenic or nonteratogenic effects associated with this drug.

Dosage and Administration

The maximum recommended dosage is 6 doses within a 24-hour period. Healthcare professionals should instruct patients to measure the dosage exclusively with the dosing cup provided, ensuring that this cup is not used with any other products to maintain accuracy and safety.

For adults and children aged 12 years and older, the recommended dose is 20 mL administered every 4 hours as needed. It is imperative that patients do not exceed the specified dosage or frequency.

For children under 12 years of age, the use of this product is not recommended.

Contraindications

Use of this product is contraindicated in patients currently taking a prescription monoamine oxidase inhibitor (MAOI), which includes certain medications for depression, psychiatric or emotional conditions, or Parkinson's disease. Additionally, use is contraindicated for a period of 2 weeks following the discontinuation of an MAOI. Patients should consult a healthcare professional if uncertain whether their prescription medication contains an MAOI.

Exceeding the recommended dosage is also contraindicated.

Warnings and Precautions

The use of this product is contraindicated in individuals currently taking a prescription monoamine oxidase inhibitor (MAOI), which includes certain medications prescribed for depression, psychiatric or emotional conditions, or Parkinson's disease. Additionally, it should not be used for a period of two weeks following the cessation of an MAOI. Healthcare professionals should advise patients to consult with a doctor or pharmacist if there is uncertainty regarding the presence of an MAOI in their prescription medications.

Prior to using this product, patients should be instructed to seek medical advice if they have a persistent or chronic cough, particularly if it is associated with smoking, asthma, chronic bronchitis, or emphysema. Furthermore, individuals experiencing a cough accompanied by excessive phlegm (mucus) should also consult a healthcare provider.

During the use of this product, it is imperative that patients adhere strictly to the recommended dosage and not exceed the directed amount.

Patients should be advised to discontinue use and consult a healthcare professional if their cough persists for more than seven days, recurs, or is accompanied by fever, rash, or a persistent headache. These symptoms may indicate a more serious underlying condition that requires medical evaluation.

To ensure safety, this product should be kept out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or the Poison Control Center should be contacted at 1-800-222-2222.

Side Effects

Patients should be aware of the potential adverse reactions associated with this product. Serious warnings include the contraindication of use in individuals currently taking a prescription monoamine oxidase inhibitor (MAOI) or within two weeks of discontinuing such medication. MAOIs are commonly prescribed for depression, psychiatric or emotional conditions, or Parkinson's disease. Patients uncertain about whether their prescription contains an MAOI are advised to consult a healthcare professional prior to use.

It is recommended that patients seek medical advice before using this product if they have a persistent or chronic cough, such as that associated with smoking, asthma, chronic bronchitis, or emphysema. Additionally, those experiencing a cough accompanied by excessive phlegm (mucus) should also consult a doctor.

Patients are instructed to discontinue use and seek medical attention if their cough persists for more than seven days, recurs, or is accompanied by fever, rash, or a persistent headache. These symptoms may indicate a serious underlying condition.

Furthermore, it is important for pregnant or breastfeeding individuals to consult a healthcare professional before using this product. The product should be kept out of reach of children, and in the event of an overdose, immediate medical assistance should be sought by contacting a Poison Control Center at 1-800-222-2222.

Drug Interactions

The concomitant use of dextromethorphan with prescription monoamine oxidase inhibitors (MAOIs) is contraindicated. This combination can result in serious interactions. It is advised that dextromethorphan not be administered to patients currently taking an MAOI or within two weeks following the discontinuation of an MAOI. Monitoring for adverse effects is recommended in patients who may have recently stopped MAOI therapy.

Packaging & NDC

Below are the non-prescription pack sizes of Cvs Mucus Relief Dm (dextromethorphan hbr and guaifenesin). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Cvs Mucus Relief Dm.
Details

Pediatric Use

Pediatric patients under 12 years of age should not use this medication. For adolescents aged 12 years and older, the recommended dosage is 20 mL every 4 hours.

Geriatric Use

There is no specific information available regarding the use of this medication in geriatric patients, including dosage adjustments, safety concerns, or special precautions. Healthcare providers should exercise caution when prescribing this medication to elderly patients, as individual responses may vary. It is advisable to monitor these patients closely for any adverse effects or changes in efficacy, given the lack of targeted data for this population.

Pregnancy

Pregnant patients and those who are breastfeeding should consult a healthcare professional prior to using this medication. The potential risks and benefits must be carefully weighed, as the effects on fetal outcomes and lactation are not fully established. It is essential for women of childbearing potential to seek medical advice to ensure the safety of both the mother and the developing fetus.

Lactation

Lactating mothers are advised to consult a health professional prior to using this medication. There is currently no available data regarding the excretion of this medication in human breast milk or its effects on breastfed infants. Therefore, caution is recommended when administering this medication to lactating individuals.

Renal Impairment

Patients with renal impairment have no specific information regarding dosage adjustments, special monitoring, or safety considerations provided in the drug insert. Therefore, healthcare professionals should exercise caution when prescribing this medication to individuals with reduced kidney function, as the lack of data necessitates careful clinical judgment. Regular monitoring of renal function may be advisable in these patients to ensure safety and efficacy.

Hepatic Impairment

Patients with hepatic impairment have not been specifically studied in relation to this drug. Consequently, there are no dosage adjustments, special monitoring requirements, or precautions outlined for individuals with compromised liver function. It is recommended that healthcare providers exercise caution when prescribing this medication to patients with hepatic impairment, given the lack of data on its safety and efficacy in this population. Regular monitoring of liver function may be prudent in these cases, although specific parameters are not defined in the prescribing information.

Overdosage

In the event of an overdose, it is imperative to seek immediate medical assistance. Healthcare professionals are advised to contact a Poison Control Center without delay. The national helpline for poison control can be reached at 1-800-222-2222.

Prompt intervention is crucial in managing potential overdose situations. Symptoms may vary depending on the substance involved, and healthcare providers should be prepared to assess and address any clinical manifestations that arise.

Management of an overdose typically involves supportive care and symptomatic treatment. Continuous monitoring of the patient’s vital signs and clinical status is essential. Depending on the specific circumstances and the substance involved, additional interventions may be necessary to ensure patient safety and recovery.

Nonclinical Toxicology

If pregnant or breastfeeding, it is advised to consult a health professional prior to use. No specific non-teratogenic effects have been identified in the available data. Additionally, there are no detailed findings regarding nonclinical toxicology or animal pharmacology and toxicology provided in the current information.

Postmarketing Experience

No postmarketing experience details are available in the insert text.

Patient Counseling

Healthcare providers should advise patients to keep the medication out of reach of children to prevent accidental ingestion. In the event of an overdose, patients should be instructed to seek medical help immediately or contact a Poison Control Center at 1-800-222-2222.

Patients must be cautioned not to exceed the recommended dosage. They should be informed to discontinue use and consult a doctor if their cough persists for more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, as these symptoms may indicate a serious condition.

Additionally, healthcare providers should encourage patients to consult a doctor prior to use if they have a persistent or chronic cough associated with smoking, asthma, chronic bronchitis, or emphysema. Patients should also be advised to seek medical advice if their cough is accompanied by excessive phlegm (mucus).

Storage and Handling

The product is supplied with a dosing cup included for accurate measurement. It should be stored at room temperature, ensuring that it is not refrigerated to maintain its efficacy. Proper handling is essential to preserve the integrity of the product.

Additional Clinical Information

The medication is administered orally, with a recommended dosage of 20 mL every 4 hours for adults and children aged 12 years and older. It is contraindicated for use in children under 12 years of age.

Clinicians should counsel patients to consult a health professional if they are pregnant or breastfeeding. Additionally, it is crucial to keep the medication out of reach of children, and in the event of an overdose, patients should seek medical assistance or contact a Poison Control Center immediately at 1-800-222-2222.

Drug Information (PDF)

This file contains official product information for Cvs Mucus Relief Dm, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Data Generation & Sources

This page was automatically generated and is maintained by the AllDrugs AI Data-Science Team. It was built from the FDA Structured Product Label (DailyMed) for Cvs Mucus Relief Dm, retrieved by a validated AI data-extraction workflow.

All FDA-listed dosage forms and strengths are shown in the Packaging & NDC Codes section above. Regulatory status appears in the Summary Information panel above and was verified in the FDA National Drug Code directory and the NSDE NDC Directory daily file.

Note: an automated daemon monitors NSDE checksums; when the record for this NDC changes, the new file is pulled instantly and this page is refreshed.

No human clinician has reviewed this version.

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Orange Book data shown on this page are limited to Regulatory Status (Rx), Established Pharmacologic Class (EPC), and Mechanism of Action (MoA).

Regulatory data notice: Information on this page is reproduced verbatim from FDA public databases (NSDE, Orange Book, Purple Book, DailyMed SPL). NDA/ANDA drugs are FDA-approved, BLA biologics are FDA-licensed. Inclusion alone does not guarantee current market availability or imply FDA endorsement.

Medical disclaimer: This AI-generated content is provided for educational purposes only and does not constitute medical advice. Always consult a licensed healthcare professional for diagnosis or treatment decisions.