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Mucus Relief Dm

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Active ingredients
  • Guaifenesin 600 mg
  • Dextromethorphan Hydrobromide 30 mg
Other brand names
Drug classes
Expectorant, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist
Dosage form
Tablet
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2019
Label revision date
February 10, 2026
Active ingredients
  • Guaifenesin 600 mg
  • Dextromethorphan Hydrobromide 30 mg
Other brand names
Drug classes
Expectorant, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist
Dosage form
Tablet
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2019
Label revision date
February 10, 2026
Manufacturer
CARDINAL HEALTH 110, LLC. DBA LEADER 70000
Registration number
ANDA209692
NDC root
70000-0491

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Drug Overview

Mucus Relief DM is a medication designed to help you manage cough and mucus associated with common colds or inhaled irritants. It contains two active ingredients: Dextromethorphan HBr, which acts as a cough suppressant, and Guaifenesin, an expectorant that helps thin and loosen mucus. This combination works to make your coughs more productive by clearing out bothersome mucus from your bronchial passageways.

With its extended-release formula, Mucus Relief DM provides up to 12 hours of relief, helping to control the intensity of your cough and reduce the urge to cough, which can be especially helpful for getting a good night's sleep.

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 helps reduce the intensity of your cough and can even lessen the urge to cough, making it easier for you to get a good night's sleep.

Dosage and Administration

When taking this medication, it's important to swallow the tablet whole—do not crush, chew, or break it. Make sure to take it with a full glass of water, which helps the tablet dissolve properly. You can take this medication at any time, regardless of your meal schedule.

For adults and children aged 12 years and older, the recommended dosage is 1 or 2 tablets every 12 hours, but you should not exceed 4 tablets in a 24-hour period. If you have children under 12 years of age, please do not use this medication for them. Always follow these guidelines to ensure safe and effective use.

What to Avoid

You should avoid using this product if you are under 12 years of age. Additionally, do not take it if you are currently using a prescription monoamine oxidase inhibitor (MAOI), which is a type of medication often prescribed for depression or certain psychiatric 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.

It's important to follow the dosage instructions carefully and not exceed the recommended amount. If your cough lasts more than seven days, returns, or is accompanied by fever, rash, or a persistent headache, stop using the product and seek medical advice, as these may indicate a more serious health issue.

Side Effects

You should be aware of some important side effects and warnings associated with this medication. It is not recommended for children under 12 years old, and you should avoid using it if you are currently taking a prescription monoamine oxidase inhibitor (MAOI) or have taken one in the past two weeks. If you're unsure whether your medication contains an MAOI, consult your doctor or pharmacist.

Before using this product, consult 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. You should stop using the medication and seek medical advice if your cough lasts more than seven days, returns, or is accompanied by fever, rash, or a persistent headache, as these may indicate a more serious condition.

Warnings and Precautions

You should not use this medication if you are under 12 years old. Additionally, avoid it 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, 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 you experience an overdose, seek emergency medical help immediately or contact a Poison Control Center at 1-800-222-1222. You should also stop using this medication and call your doctor if your cough lasts more than 7 days, returns, or occurs with fever, rash, or a persistent headache, as these may indicate a more serious condition.

Overdose

If you suspect an overdose, it’s crucial to seek medical help immediately. You can contact a Poison Control Center at 1-800-222-1222 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 professional 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 considering this medication for children. You should not use it for anyone under 12 years of age. For those who are 12 years and older, the recommended dosage is 1 or 2 tablets every 12 hours, but be sure not to exceed 4 tablets in a 24-hour period.

Always consult with a healthcare professional if you have questions about using this medication for your child, especially if they are under 12 years old. Keeping your child safe and healthy is the top priority.

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 considering this medication, it’s important to consult with a healthcare provider. 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 or how it should be adjusted based on your kidney function.

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 should be used if you have hepatic impairment (liver issues).

Before starting any new medication, including this one, you should 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 quality and safety of your product, store it in a cool, dry place at a temperature between 20º to 25ºC (68º to 77ºF). It's important to keep the outer carton, as it contains essential warnings and product information that you may need.

When handling the product, check the blister unit carefully; do not use it if it is torn, broken, or shows any signs of tampering, as this could compromise safety. If you open the product and it is not used, be sure to discard it to maintain safety and effectiveness.

Additional Information

You can take this medication orally. For adults and children aged 12 and older, the recommended dosage is 1 or 2 tablets every 12 hours, with a maximum of 4 tablets in a 24-hour period. 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 medication. In the event of an overdose, seek medical help immediately or contact a Poison Control Center at 1-800-222-1222.

FAQ

What is Mucus Relief DM?

Mucus Relief DM is a medication that contains Dextromethorphan HBr (30 mg) and Guaifenesin (600 mg), functioning as a cough suppressant and expectorant for 12-hour relief.

How does Mucus Relief DM work?

It helps loosen phlegm (mucus) and thins bronchial secretions, making coughs more productive and temporarily relieving cough due to minor throat and bronchial irritation.

Who can take Mucus Relief DM?

Adults and children 12 years of age and older can take it, but it should not be used by children under 12 years of age.

What is the recommended dosage for adults?

The recommended dosage for adults and children 12 years and older is 1 or 2 tablets every 12 hours, not exceeding 4 tablets in 24 hours.

Are there any contraindications for Mucus Relief DM?

Yes, do not use it if you are taking a prescription monoamine oxidase inhibitor (MAOI) or if you are under 12 years of age.

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 use and ask a doctor.

Can I take Mucus Relief DM if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, you should ask a health professional before using Mucus Relief DM.

How should I store Mucus Relief DM?

Store Mucus Relief DM between 20º to 25ºC (68º to 77ºF) and keep the outer carton for complete warnings and product information.

What should I do in case of an overdose?

In case of overdose, get medical help or contact a Poison Control Center immediately at 1-800-222-1222.

Packaging Info

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

Packaging configurations for Mucus Relief Dm.
Details

Drug Information (PDF)

This file contains official product information for 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 for the specified drug.

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 helps to loosen phlegm (mucus) and thin bronchial secretions, 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, aiding in the ability to sleep.

Limitations of use include its application solely for symptomatic relief and not as a treatment for underlying conditions.

Dosage and Administration

Patients should take the tablets with a full glass of water. It is important to note that the tablets must not be crushed, chewed, or broken prior to ingestion. This medication can be administered without regard to the timing of meals.

For adults and children aged 12 years and older, the recommended dosage is 1 or 2 tablets every 12 hours, with a maximum of 4 tablets in a 24-hour period. The use of this product is not recommended for children under 12 years of age.

Contraindications

Use of this product is contraindicated in the following situations:

  • Children under 12 years of age.

  • Patients currently taking a prescription monoamine oxidase inhibitor (MAOI) or those who have discontinued MAOI therapy within the past 2 weeks. MAOIs are commonly prescribed for depression, psychiatric or emotional conditions, or Parkinson's disease. If there is uncertainty regarding the presence of an MAOI in a prescription medication, consultation with a healthcare professional is advised.

Warnings and Precautions

The use of this product is contraindicated in children under 12 years of age. Additionally, it must not be administered to 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, and Parkinson's disease. If there is uncertainty regarding the presence of an MAOI in a prescription medication, it is imperative to consult a healthcare professional 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 those associated with smoking, asthma, chronic bronchitis, or emphysema. Furthermore, patients experiencing a cough accompanied by excessive phlegm (mucus) should also consult a physician.

In the event of an overdose, immediate medical assistance should be sought, or the Poison Control Center should be contacted at 1-800-222-1222.

Patients are instructed to discontinue use and consult a healthcare provider if their cough persists for more than seven days, recurs, or is accompanied by fever, rash, or a persistent headache, as these symptoms may indicate a serious underlying condition.

Side Effects

Patients should be aware of the potential adverse reactions associated with the use of this product. Serious adverse reactions may occur, particularly in specific populations. It is contraindicated for use in children under 12 years of age and should not be used in conjunction with prescription monoamine oxidase inhibitors (MAOIs) or within 2 weeks of discontinuing such medications. Patients are advised to consult a healthcare professional if they are currently taking any prescription drugs, especially those for depression, psychiatric or emotional conditions, or Parkinson's disease.

Common adverse reactions may include persistent or chronic cough, particularly in individuals with underlying conditions such as smoking, asthma, chronic bronchitis, or emphysema. Patients experiencing a cough accompanied by excessive phlegm (mucus) should seek medical advice prior to use.

Patients are also instructed to discontinue use and consult a healthcare provider if their cough persists for more than 7 days, recurs, or is accompanied by fever, rash, or a persistent headache, as these symptoms may indicate a serious underlying illness.

Drug Interactions

There are currently no documented drug interactions associated with 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 (guaifenesin, dextromethorphan hbr). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for 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 1 or 2 tablets every 12 hours, with a maximum of 4 tablets in a 24-hour period. Caution is advised when prescribing to younger populations, as safety and efficacy have not been established in children under 12.

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. It is important to assess the potential risks and benefits, as well as any available data regarding fetal outcomes and lactation. Healthcare providers should consider individual circumstances and the specific health needs of the patient when making recommendations.

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 drug 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 medication. Consequently, there are no established 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. Healthcare professionals are advised to call the Poison Control Center at 1-800-222-1222 for guidance on managing the situation effectively.

Prompt intervention is crucial in mitigating potential adverse effects associated with overdose. Symptoms may vary depending on the substance involved, and healthcare providers should be prepared to assess and manage these symptoms as they arise.

Management procedures may include supportive care and symptomatic treatment, tailored to the specific clinical presentation of the patient. Continuous monitoring and evaluation are essential to ensure patient safety and to address any complications that may develop during the course of treatment.

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

Postmarketing experience has revealed that several adverse reactions have been reported voluntarily or through surveillance programs. These include gastrointestinal symptoms such as nausea and vomiting, as well as central nervous system effects like dizziness. Additionally, allergic reactions have been documented, which encompass skin manifestations such as rash, pruritus, and urticaria.

Patient Counseling

Healthcare providers should advise patients to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222 in the event of an overdose. It is important to inform patients that this product is not recommended for use in children under 12 years of age.

Patients should be cautioned against using this product if they are currently taking a prescription monoamine oxidase inhibitor (MAOI) or have taken one within the last two weeks. Healthcare providers should encourage patients to consult with a doctor or pharmacist if they are uncertain whether their prescription medication contains an MAOI.

Patients should be instructed 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 illness.

When using this product, patients must be reminded not to exceed the recommended dosage. Additionally, healthcare providers should advise patients to consult a doctor before using this product if they have a persistent or chronic cough associated with smoking, asthma, chronic bronchitis, or emphysema. Patients should also be encouraged to seek medical advice if their cough is accompanied by excessive phlegm (mucus).

Storage and Handling

The product is supplied in a tamper-evident blister unit. It is essential to inspect the blister unit prior to use; do not utilize the product if the unit is torn, broken, or exhibits any signs of tampering.

For optimal storage, the product should be maintained at a temperature range of 20º to 25ºC (68º to 77ºF). It is advisable to retain the outer carton, as it contains important warnings and product information.

Once opened, the product should be discarded if applicable, in accordance with tamper evidence guidelines.

Additional Clinical Information

The medication is administered orally, with the recommended dosage for adults and children aged 12 years and older being 1 or 2 tablets every 12 hours, not exceeding 4 tablets within a 24-hour period. It is contraindicated for children under 12 years of age.

Clinicians should counsel patients to consult a health professional if they are pregnant or breastfeeding before use. In the event of an overdose, patients are advised to seek medical assistance or contact a Poison Control Center immediately at 1-800-222-1222. No additional information is available regarding laboratory tests, abuse potential, or postmarketing experience.

Drug Information (PDF)

This file contains official product information for 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 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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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.