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Mucus Relief Dm Extended Release Caplets

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Active ingredients
  • Guaifenesin 1200 mg
  • Dextromethorphan Hydrobromide 60 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 28, 2025
Active ingredients
  • Guaifenesin 1200 mg
  • Dextromethorphan Hydrobromide 60 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 28, 2025
Manufacturer
Walgreens
Registration number
ANDA209692
NDC root
0363-0437

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Drug Overview

Mucus Relief DM is a medication designed to help manage coughs and relieve congestion. It contains two active ingredients: guaifenesin, which helps thin and loosen mucus in the airways, making it easier to expel, and dextromethorphan HBr, which controls the cough reflex. This combination works to make your coughs more productive and can temporarily relieve coughing caused by minor throat and bronchial irritation, such as that from the common cold or inhaled irritants.

By using Mucus Relief DM, you can find relief from bothersome coughs and the urge to cough, allowing you to rest more comfortably, especially at night. It is formulated as extended-release tablets, providing maximum strength relief for up to 12 hours.

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

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 in your stomach. You can take this medication without worrying about whether you've eaten or not.

For adults and children aged 12 years and older, the recommended dosage is one tablet every 12 hours. However, you should not take more than two tablets in a 24-hour period. If you have children under 12 years of age, this medication is not suitable for them, so please avoid using it for that age group.

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 avoid using this medication if you are under 12 years old or 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’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. You should stop using the medication and seek medical advice if your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, as these may indicate a more serious condition. If you are pregnant or breastfeeding, consult a healthcare professional before use. Always keep this medication out of reach of children, and in case of an overdose, seek immediate medical help or contact a Poison Control Center.

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 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 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 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 one tablet every 12 hours, with a maximum of two tablets in a 24-hour period. Always follow these guidelines to ensure the safety and well-being of your child.

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 healthcare providers may not have tailored guidelines for elderly patients, which can be important given the unique health considerations that often come with aging.

If you or a loved one is an older adult considering this medication, it’s essential to discuss any potential risks and benefits with your healthcare provider. They can help determine the best approach based on individual health needs and circumstances.

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 (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 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 navigate any concerns.

Storage and Handling

To ensure the best performance of your product, store it in a cool, dry place at a temperature between 20º to 25ºC (68º to 77ºF). This temperature range helps maintain the product's effectiveness and safety.

When handling the product, be sure to do so with clean hands and in a clean environment to avoid contamination. Always follow any specific disposal instructions provided to ensure safe and responsible disposal.

Additional Information

For adults and children aged 12 years and older, the recommended dosage is 1 tablet every 12 hours, with a maximum of 2 tablets in a 24-hour period. If you are caring for a child under 12 years old, do not use this medication.

Before using this medication, it's important to consult a healthcare professional if you are pregnant or breastfeeding. In the event of an overdose, seek medical assistance immediately or contact a Poison Control Center at 1-800-222-1222.

FAQ

What is Mucus Relief DM used for?

Mucus Relief DM helps control cough, thin bronchial secretions, and loosen phlegm (mucus) to make coughs more productive.

What are the active ingredients in Mucus Relief DM?

The active ingredients are GUAIFENESIN 1200 mg and DEXTROMETHORPHAN HBr 60 mg.

How should I take Mucus Relief DM?

Take 1 tablet every 12 hours with a full glass of water, not exceeding 2 tablets in 24 hours. Do not crush, chew, or break the tablet.

Who should not use Mucus Relief DM?

Do not use Mucus Relief DM for children under 12 years of age or if you are taking a prescription monoamine oxidase inhibitor (MAOI).

What should I do if I experience an overdose?

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

Are there any warnings associated with Mucus Relief DM?

Yes, do not use if you are taking an MAOI or if you have a persistent cough due to smoking, asthma, or chronic bronchitis without consulting a doctor.

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

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

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

Stop using Mucus Relief DM and consult a doctor if your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or persistent headache.

Packaging Info

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

Packaging configurations for Mucus Relief Dm Extended Release Caplets.
Details

Drug Information (PDF)

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

View product document (PDF)

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 assists 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 reduces the impulse to cough, which may aid in promoting sleep.

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

Dosage and Administration

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

For adults and children aged 12 years and older, the recommended dosage is 1 tablet every 12 hours, with a maximum of 2 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. Due to the potential for serious interactions, it is essential to consult a healthcare professional if there is uncertainty regarding the presence of an MAOI in any prescription medication.

Additionally, it is advised not to exceed the recommended dosage while using this product.

Warnings and Precautions

The use of this product is contraindicated in children under 12 years of age. Additionally, it should 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. Healthcare professionals should advise patients to consult a doctor or pharmacist if they are uncertain whether their prescription includes an MAOI.

General precautions should be observed prior to use. Patients should be advised to seek medical consultation 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 before using this product.

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 should discontinue use and consult a healthcare professional 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 warnings and precautions associated with the use of this product. It is contraindicated for children under 12 years of age and should not be used in conjunction with prescription monoamine oxidase inhibitors (MAOIs) or within two weeks of discontinuing such medications. Patients uncertain about whether their prescription includes an MAOI are advised to consult a healthcare professional prior to use.

Before using this product, patients should seek medical advice if they have a persistent or chronic cough, such as that associated with smoking, asthma, chronic bronchitis, or emphysema, or if their cough is accompanied by excessive phlegm (mucus).

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.

For pregnant or breastfeeding individuals, it is recommended to consult a healthcare 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 with a Poison Control Center should be made 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 includes an MAOI before initiating treatment with this product.

Packaging & NDC

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

Packaging configurations for Mucus Relief Dm Extended Release Caplets.
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 tablet every 12 hours, with a maximum of 2 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 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. Monitoring for potential adverse effects and therapeutic efficacy is recommended in 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 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 not been specifically addressed in the drug insert. There are no dosage adjustments, special monitoring requirements, or safety considerations outlined for individuals with reduced kidney function. Healthcare professionals should exercise caution and consider the lack of information when prescribing this medication to patients with renal impairment.

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. 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 as a result of the overdose.

Nonclinical Toxicology

No teratogenic effects were observed in animal studies, and there was no increase in fetal malformations. Studies in animals have demonstrated that the drug does not cause adverse developmental outcomes. Furthermore, animal studies indicate that the drug is well tolerated at doses effective for cough suppression and mucus relief.

Postmarketing Experience

No postmarketing experience details are provided in the insert.

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), which includes certain medications for depression, psychiatric or emotional conditions, or Parkinson's disease. They should also refrain from 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.

Healthcare providers should instruct patients 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.

Patients must be reminded to adhere strictly to the recommended dosage and not exceed the directed amount when using this product. Additionally, it is advisable for 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. They should also seek medical advice 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 is essential to store the product at a controlled temperature range of 20º to 25ºC (68º to 77ºF) to maintain its integrity and efficacy. Proper storage conditions must be adhered to, ensuring that the product is kept in a suitable container that protects it from environmental factors. Special handling requirements should be observed to prevent any compromise to the product's quality.

Additional Clinical Information

Patients aged 12 years and older are advised to take 1 tablet every 12 hours, with a maximum of 2 tablets in a 24-hour period. The use of this medication is not recommended for children under 12 years of age. Clinicians should counsel patients to consult a health professional prior to use if they are pregnant or breastfeeding. In the event of an overdose, patients should seek immediate medical assistance or contact a Poison Control Center 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 Extended Release Caplets, 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 Extended Release Caplets, 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.