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Mucus Relief Dm Max

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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 2024
Label revision date
October 8, 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 2024
Label revision date
October 8, 2025
Manufacturer
DOLGENCORP, LLC
Registration number
M012
NDC root
55910-146
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

Mucus Relief DM Max is a maximum strength medication designed to help you manage cough and chest congestion. It contains two active ingredients: Dextromethorphan HBr, which acts as a cough suppressant, and Guaifenesin, an expectorant that helps loosen phlegm (mucus) and thin bronchial secretions. This combination works to relieve cough caused by minor throat and bronchial irritation, making your coughs more productive and helping you sleep better by reducing the urge to cough.

This medication is suitable for individuals aged 12 years and older and is formulated to provide relief for up to four hours. By thinning and loosening mucus, Mucus Relief DM Max aids in clearing your bronchial passageways, allowing you to breathe more easily and feel more comfortable during cold or allergy seasons.

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 use this medication to temporarily relieve coughs caused by minor throat and bronchial irritation, which can happen with the common cold or from inhaling irritants. It also helps reduce the intensity of your cough and can 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 dosage instructions carefully to ensure your safety and effectiveness of the medication. You should not take more than the directed amount, and make sure not to exceed 6 doses within a 24-hour period. Always use the dose cup that comes with the medication for accurate measurement.

For adults and children aged 12 years and older, the recommended dose is 20 mL every 4 hours. However, if you are caring for children under 12 years old, this medication is not suitable for them, and you should avoid using it. If you have any questions or need further guidance, consult your doctor.

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, do not use this product for at least two weeks after stopping an MAOI. If you are unsure whether your prescription includes an MAOI, please consult your doctor or pharmacist before using this product.

It's important to follow these guidelines to prevent potential serious interactions and ensure your safety. Always prioritize open communication with your healthcare provider regarding any medications you are taking.

Side Effects

If you experience a cough that lasts more than a week, keeps coming back, or is accompanied by a fever, rash, or a persistent headache, it's important to stop using the medication and consult your doctor. These symptoms could indicate a more serious health issue that needs attention.

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, or if you have stopped taking an MAOI within the last two weeks. If you're unsure whether your medication contains an MAOI, please consult your doctor or pharmacist before using this product.

Before using this product, it's important to talk to 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. If your cough lasts more than a week, keeps coming back, or is accompanied by a fever, rash, or persistent headache, stop using the product and contact your doctor, as these may be signs of a more serious condition.

In the event of an overdose, seek medical help immediately or contact a Poison Control Center. Your health and safety are important, so please take these precautions seriously.

Overdose

If you suspect an overdose, it’s crucial to seek medical help immediately or contact a Poison Control Center. Signs of an overdose can vary, but they may include unusual drowsiness, confusion, or difficulty breathing.

Don’t wait for symptoms to worsen; getting prompt assistance can be vital. Always keep emergency contact numbers handy and be aware of the signs to ensure your safety and well-being.

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

It's important to be cautious when using this medication for children. If your child is under 12 years old, you should not use this product. For those aged 12 and older, the recommended dosage is 20 mL, taken every 4 hours using the dosing cup provided.

Always keep this medication out of reach of younger children. In the event of an overdose, seek medical help immediately or contact a Poison Control Center for assistance. Your child's safety is the top priority, so please follow these guidelines carefully.

Geriatric Use

When it comes to using this medication in older adults, there is no specific information available about dosage adjustments, safety concerns, or special precautions. This means that if you or a loved one is an older adult, it’s important to consult with a healthcare provider for personalized advice. They can help determine the best approach based on individual health needs and any other medications being taken. Always prioritize open communication with your healthcare team to ensure safe and effective treatment.

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 may affect you 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 monitor your kidney function and make any necessary adjustments to your treatment plan.

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 if you have hepatic impairment (issues with liver function).

Before starting any new medication, including this one, it's essential to discuss your liver health with your healthcare provider. They can help determine the best approach for your treatment and ensure your safety.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. While there are no specific drug interactions or laboratory test interactions noted for this medication, your healthcare provider can help ensure that everything you are taking works well together and is safe for you.

Always feel free to ask questions and share your complete list of medications and any lab tests you may be undergoing. This way, you can receive the best possible care tailored to your needs.

Storage and Handling

To ensure the best performance of your product, store it at a temperature of 25°C (77°F). It’s acceptable for the temperature to vary between 15°C and 30°C (59°F to 86°F) occasionally, but try to keep it as close to the recommended temperature as possible. Always check the expiration date on the package and use the product before that date to ensure its safety and effectiveness.

When handling the product, make sure to do so in a clean environment to maintain its integrity. Following these guidelines will help you use the product safely and effectively.

Additional Information

If you are considering using this medication, it's important to know how to take it properly. For adults and children aged 12 years and older, the recommended dose is 20 mL taken every 4 hours using the dosing cup provided. However, this medication should not be used in children under 12 years old.

If you are pregnant or breastfeeding, be sure to consult a healthcare professional before using this medication. Additionally, parents should be aware of the potential for medicine abuse among teens and can find more information at www.StopMedicineAbuse.org.

FAQ

What is Mucus Relief DM Max?

Mucus Relief DM Max is a maximum strength formulation that contains Dextromethorphan HBr (a cough suppressant) and Guaifenesin (an expectorant) to control cough, relieve chest congestion, and thin mucus.

Who can use Mucus Relief DM Max?

This product is intended for adults and children aged 12 years and over. Children under 12 years should not use it.

How should I take Mucus Relief DM Max?

You should take 20 mL in the dosing cup provided every 4 hours, but do not exceed 6 doses in any 24-hour period.

What should I do if I experience an overdose?

In case of overdose, seek medical help or contact a Poison Control Center immediately.

Are there any contraindications for using Mucus Relief DM Max?

Do not use this product 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 persists?

Stop using Mucus Relief DM Max and consult a doctor if your cough lasts more than 1 week, tends to recur, or is accompanied by a fever, rash, or persistent headache.

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

If you are pregnant or breastfeeding, you should ask a health professional before using this product.

What are the storage instructions for Mucus Relief DM Max?

Store Mucus Relief DM Max at 25°C (77°F), with permissible excursions between 15°-30°C (59°-86°F), and use it by the expiration date on the package.

Packaging Info

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

Packaging configurations for Mucus Relief Dm Max.
Details

Drug Information (PDF)

This file contains official product information for Mucus Relief Dm Max, 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 clearance of mucus from the bronchial passageways and making coughs more productive.

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

No teratogenic or nonteratogenic effects have been reported with the use of this drug.

Dosage and Administration

Patients should adhere strictly to the recommended dosage and administration guidelines. The maximum dosage should not exceed 6 doses within a 24-hour period. It is imperative to utilize only the dose cup provided for accurate measurement.

For adults and children aged 12 years and older, the recommended dose is 20 mL, administered every 4 hours as needed. For children under 12 years of age, this product is not indicated and should not be used.

Healthcare professionals are advised to instruct patients to follow these guidelines closely and to consult a physician if there are any uncertainties regarding dosage or administration.

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 they are uncertain whether their prescription medication contains an MAOI.

Warnings and Precautions

Patients should not use this product if they are currently taking a prescription monoamine oxidase inhibitor (MAOI), which includes certain medications prescribed for depression, psychiatric or emotional conditions, or Parkinson’s disease. Additionally, the product should not be used for at least two weeks following the discontinuation of an MAOI. If there is uncertainty regarding whether a prescription medication contains an MAOI, it is imperative to consult a healthcare professional, such as a doctor or pharmacist, prior to use.

Healthcare professionals should advise patients to seek medical guidance before using this product if they have a persistent or chronic cough, particularly if it is associated with smoking, asthma, chronic bronchitis, or emphysema. Furthermore, patients with a cough that produces excessive phlegm (mucus) should also consult a healthcare provider before use.

Patients are instructed to discontinue use and contact their healthcare provider if the cough persists for more than one week, recurs, or is accompanied by additional symptoms such as fever, rash, or a persistent headache. These symptoms may indicate a more serious underlying condition that requires medical evaluation.

In the event of an overdose, it is crucial to seek immediate medical assistance or contact a Poison Control Center without delay. Prompt action is essential to ensure patient safety and appropriate management of the situation.

Side Effects

Patients should discontinue use and consult a healthcare professional if a cough persists for more than one week, recurs, or is accompanied by fever, rash, or a persistent headache. These symptoms may indicate the presence of a serious underlying condition that requires medical evaluation.

Drug Interactions

There are currently no documented drug interactions associated with the use of this medication. Additionally, there is no information available regarding interactions with laboratory tests. As such, no specific recommendations for dosage adjustments or monitoring are warranted at this time.

Packaging & NDC

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

Packaging configurations for Mucus Relief Dm Max.
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, administered every 4 hours using the dosing cup provided.

It is essential to keep this medication out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or contact a Poison Control Center without delay.

Geriatric Use

Elderly patients may not have specific information regarding the use of this medication, including dosage adjustments, safety concerns, or special precautions. Therefore, healthcare providers should exercise caution when prescribing this medication to geriatric patients. It is advisable to monitor these patients closely for any potential adverse effects or changes in therapeutic response, 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 safe use during pregnancy and lactation.

Lactation

Lactating mothers are advised to consult a health professional prior to using this medication. There is currently no available data on 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 not been specifically addressed in the drug insert text regarding dosage adjustments, special monitoring, or safety considerations. Therefore, healthcare professionals should exercise caution when prescribing this medication to individuals with reduced kidney function, as the absence of detailed guidance necessitates careful clinical judgment and monitoring of these patients.

Hepatic Impairment

Patients with hepatic impairment have not been specifically studied in relation to this medication. 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 or contact a Poison Control Center without delay. Prompt intervention is crucial to mitigate potential adverse effects associated with the overdose.

Healthcare professionals should be aware that the specific symptoms of an overdose may vary depending on the substance involved. Therefore, a thorough assessment of the patient's condition is essential to determine the appropriate course of action.

Management of an overdose typically involves supportive care and symptomatic treatment. Continuous monitoring of the patient's vital signs and clinical status is recommended. In cases where the specific substance is known, targeted therapies may be employed as indicated.

It is essential for healthcare providers to remain vigilant and act swiftly in the management of overdose situations to ensure optimal patient outcomes.

Nonclinical Toxicology

If pregnant or breast-feeding, it is advised to consult a health professional before 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

Postmarketing experience has identified the following adverse reactions reported voluntarily or through surveillance programs: nausea, vomiting, dizziness, and allergic reactions, which include rash, pruritus, and urticaria.

Patient Counseling

Healthcare providers should advise patients to seek immediate medical assistance or contact a Poison Control Center in the event of an overdose. It is crucial to inform patients that this product should not be used concurrently with prescription monoamine oxidase inhibitors (MAOIs), which are medications prescribed for depression, psychiatric or emotional conditions, or Parkinson’s disease. Patients should also be cautioned against using this product for at least two weeks after discontinuing an MAOI. If patients are uncertain whether their prescription medication contains an MAOI, they should be encouraged to consult with their doctor or pharmacist prior to use.

Providers should instruct patients to discontinue use and consult a doctor if their cough persists for more than one week, recurs, or is accompanied by symptoms such as fever, rash, or a persistent headache, as these may indicate a serious underlying condition. Additionally, patients should be advised to seek medical guidance before using this product if they have a persistent or chronic cough associated with smoking, asthma, chronic bronchitis, or emphysema, or if their cough is accompanied by excessive phlegm (mucus).

Storage and Handling

The product is supplied in various package configurations, with specific NDC numbers available for identification. It should be stored at a controlled room temperature of 25°C (77°F). Temporary excursions are permissible within the range of 15° to 30°C (59° to 86°F).

Healthcare professionals are advised to adhere to the expiration date indicated on the package to ensure product efficacy and safety. Proper storage conditions are essential to maintain the integrity of the product throughout its shelf life.

Additional Clinical Information

Patients should be informed that 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 children under 12 years. Clinicians should advise patients who are pregnant or breastfeeding to consult a healthcare professional prior to use.

Additionally, parents are encouraged to educate themselves about the potential for medicine abuse among teenagers by visiting www.StopMedicineAbuse.org. No further information is available regarding laboratory tests or postmarketing experiences.

Drug Information (PDF)

This file contains official product information for Mucus Relief Dm Max, 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 Mucus Relief Dm Max, 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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Primary FDA sources:

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.