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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
August 20, 2025
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
August 20, 2025
Manufacturer
Rite Aid Corporation
Registration number
ANDA209692
NDC root
11822-0733

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Drug Overview

MUCUS RELIEF DM is a medication designed to help you manage cough and mucus buildup. It contains two active ingredients: guaifenesin, which is an expectorant that helps thin and loosen mucus in your airways, making it easier to clear out, and dextromethorphan HBr, a cough suppressant that temporarily controls your cough. This combination works to relieve cough caused by minor throat and bronchial irritation, such as that from the common cold or inhaled irritants, allowing you to breathe more comfortably and even helping you get to sleep.

The medication comes in 12-hour extended-release tablets, providing long-lasting relief. By making your coughs more productive and reducing the urge to cough, MUCUS RELIEF DM can help you feel better when you're dealing with respiratory discomfort.

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 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, 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, psychiatric conditions, or Parkinson's disease. 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 also important to follow the dosage instructions carefully and not exceed the recommended amount. Misuse 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 when using any medication.

Side Effects

You should be aware of some important warnings and potential side effects when considering 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 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 use.

While using this product, make sure to follow the dosage instructions carefully. 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. If you are pregnant or breastfeeding, it's best to consult a healthcare professional before using this product. Always keep it out of reach of children, and in case of an overdose, contact medical help or a Poison Control Center immediately.

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 or contact a Poison Control Center at 1-800-222-1222. Signs of an overdose can vary, but they may include unusual drowsiness, confusion, or difficulty breathing.

Do not wait for symptoms to worsen; getting prompt assistance can be vital. Always keep emergency contact information handy and be aware of the signs of overdose 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 is important to note that this medication should not be used in children under 12 years of age. If you are a parent or caregiver, please ensure that your child meets this age requirement before considering this treatment. Always consult with a healthcare professional if you have any questions or concerns regarding the use of this medication for your child.

Geriatric Use

When it comes to using this medication, there is no specific information available about its use in older adults. This means that there are no special dosage adjustments, safety concerns, or precautions specifically for elderly patients.

As always, it's important for you or your caregiver to discuss any concerns with your healthcare provider, especially if you have other health conditions or are taking multiple medications. Your doctor can help ensure that this treatment is safe and appropriate for your individual needs.

Renal Impairment

If you have kidney problems, it's important to know that the information provided does not include specific guidelines for dosage adjustments, special monitoring, or safety considerations related to renal impairment (kidney issues). This means that there are no tailored recommendations for how your treatment may need to change based on your kidney function.

Always consult your healthcare provider for personalized advice and to ensure that your treatment plan is safe and effective for your specific situation. They can help monitor your kidney health and make any necessary adjustments to your medications.

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).

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

Drug Interactions

It's important to be cautious about combining medications. If you are currently taking a prescription monoamine oxidase inhibitor (MAOI), which is a type of medication used for depression, certain psychiatric conditions, or Parkinson's disease, you should not use this product. Additionally, you should wait at least two weeks after stopping an MAOI before starting this medication. If you're unsure whether your current prescription includes an MAOI, please consult your doctor or pharmacist for clarification.

Always discuss any medications you are taking with your healthcare provider to ensure your safety and avoid potentially harmful interactions. Your health is a priority, and your provider can help you make informed decisions about your treatment options.

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. After opening, please remember to discard any unused portions to maintain hygiene and safety.

Additional Information

You should take this medication orally. 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. If you are caring for a child under 12 years of age, do not use this medication for them. Always follow the dosage instructions to ensure safe and effective use.

FAQ

What is MUCUS RELIEF DM used for?

MUCUS RELIEF DM is an expectorant and cough suppressant that helps loosen phlegm and thin bronchial secretions, making coughs more productive and temporarily relieving cough due to minor throat and bronchial irritation.

What are the active ingredients in MUCUS RELIEF DM?

The active ingredients are GUAIFENESIN 600 mg, which helps loosen mucus, and DEXTROMETHORPHAN HBr 30 mg, which suppresses cough.

How should I take MUCUS RELIEF DM?

You should take 1 or 2 tablets every 12 hours, not exceeding 4 tablets in 24 hours. Take with a full glass of water and do not crush, chew, or break the tablet.

Who should not use MUCUS RELIEF DM?

Do not use MUCUS RELIEF DM if you are under 12 years of age or if you are currently taking a prescription monoamine oxidase inhibitor (MAOI) or have taken one in 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 the product and consult a doctor.

Is MUCUS RELIEF DM safe to use during pregnancy or breastfeeding?

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

What are the storage instructions for 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, seek 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

MUCUS RELIEF DM is an extended-release tablet formulation containing 600 mg of guaifenesin and 30 mg of dextromethorphan HBr. This combination serves as an expectorant and cough suppressant, providing temporary control of cough while thinning and loosening mucus. The product is designed for a 12-hour duration of action. It is important to note that this product is not manufactured or distributed by Reckitt Benckiser LLC, the distributor of Mucinex® DM.

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.

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

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.

This medication is not recommended for use in 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, consultation with a healthcare professional is advised prior to use.

Healthcare professionals should exercise caution and recommend that patients consult a physician 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 seek medical advice prior to use.

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 advised 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 condition.

Side Effects

Patients should be aware of the following adverse reactions associated with the use of this product.

Serious adverse reactions may occur, and patients are advised to stop use and consult a healthcare professional if the cough persists for more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, as these symptoms could indicate a serious illness.

This product 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 stopping such medications. Patients uncertain about whether their prescription contains an MAOI should seek guidance from a doctor or pharmacist prior to use.

Patients with a persistent or chronic cough, such as that associated with smoking, asthma, chronic bronchitis, or emphysema, should consult a healthcare professional before using this product. Additionally, those experiencing a cough accompanied by excessive phlegm (mucus) should also seek medical advice.

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

For pregnant or breastfeeding individuals, it is recommended to consult a health professional before use.

This product should be kept out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or contact a Poison Control Center at 1-800-222-1222.

Drug Interactions

The concomitant use of this product with prescription monoamine oxidase inhibitors (MAOIs) is contraindicated. MAOIs are typically prescribed for the treatment of depression, psychiatric or emotional conditions, and Parkinson's disease. Patients should not take this product while on MAOIs or for a minimum of two weeks following the discontinuation of an MAOI.

It is essential for patients to consult with a healthcare professional, such as a doctor or pharmacist, to verify whether their current prescription medication contains an MAOI before initiating treatment with this product.

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 be administered this medication. There are no established safety or efficacy profiles for this age group, and its use is contraindicated in children younger than 12 years. Healthcare professionals are advised to consider alternative treatments for pediatric patients within this age range.

Geriatric Use

Elderly patients may not have specific information regarding the use of this medication, as the prescribing information does not provide any age considerations, dosage adjustments, safety concerns, or special precautions for this population.

Healthcare providers should exercise clinical judgment when prescribing this medication to geriatric patients, considering the absence of data specific to this demographic. Monitoring for efficacy and safety is advised, as individual responses may vary.

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 no specific data available regarding the excretion of this medication in 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 prescribing information regarding dosage adjustments, special monitoring, or safety considerations. Therefore, healthcare professionals should exercise caution when prescribing this medication to patients with reduced kidney function, as the absence of detailed guidance 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 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 should advise patients or caregivers to call the Poison Control Center at 1-800-222-1222 for guidance.

Prompt intervention is crucial in managing overdose situations, as timely medical help can significantly influence outcomes. Symptoms of overdose may vary depending on the substance involved and the individual’s health status. Therefore, a thorough assessment and monitoring of the patient are essential.

Management procedures should include supportive care and symptomatic treatment as necessary. Healthcare providers are encouraged to follow established protocols for overdose management, which may involve decontamination, administration of antidotes if applicable, and continuous monitoring of vital signs and clinical status.

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: dizziness, nausea, vomiting, 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 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 stopped taking an MAOI drug within the past 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 must be instructed to discontinue use and consult a healthcare professional 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 should be reminded not to exceed the recommended dosage. Additionally, healthcare providers should advise 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 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 use if the unit is torn, broken, or shows 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 recommended to keep the outer carton to ensure access to complete warnings and product information. Once opened, the product should be discarded.

Additional Clinical Information

The medication is administered orally. 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. It is contraindicated for use in children under 12 years of age.

No additional information is available regarding laboratory tests, abuse potential, patient counseling, 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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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.