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Mucus Relief Dm

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This product has been discontinued

Active ingredients
  • Guaifenesin 400 mg/20 mL
  • Dextromethorphan Hydrobromide 20 mg/20 mL
Other brand names
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2021
Label revision date
January 2, 2026
Active ingredients
  • Guaifenesin 400 mg/20 mL
  • Dextromethorphan Hydrobromide 20 mg/20 mL
Other brand names
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2021
Label revision date
January 2, 2026
Manufacturer
Rite Aid Corporation
Registration number
M012
NDC root
11822-7224

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Drug Overview

MUCUS RELIEF DM MAX is a maximum strength medication designed to provide multi-symptom relief for cough and chest congestion. It works as a cough suppressant and expectorant, helping to loosen phlegm (mucus) and thin bronchial secretions. This action makes it easier to clear mucus from your airways, allowing for more productive coughs.

This product temporarily relieves cough caused by minor throat and bronchial irritation, which can occur with the common cold or from inhaled irritants. It also helps reduce the intensity of your cough and the urge to cough, making it easier for you to rest. MUCUS RELIEF DM MAX contains two active ingredients: dextromethorphan HBr, which controls cough, and guaifenesin, which thins and loosens mucus.

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

When using this medication, it's important to follow the dosing instructions carefully to ensure your safety and effectiveness. For adults and children aged 12 years and older, the recommended dose is 20 milliliters (mL) every 4 hours. However, you should not take more than 6 doses within a 24-hour period.

Make sure to measure your dose using the dosing cup that comes with the product, as this ensures accuracy. Avoid using any other measuring devices, as they may not provide the correct amount. Keep the dosing cup with the product for easy access. If you have children under 12 years of age, do not use this medication for them without consulting a doctor. Always follow your healthcare provider's instructions if they differ from these guidelines.

What to Avoid

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

While using this product, it’s important to follow the directions carefully and not exceed the recommended dosage. Misusing or taking more than directed can lead to serious health issues, including dependence (a condition where your body becomes reliant on a substance). Always prioritize your safety and well-being by adhering to these guidelines.

Side Effects

You should be aware of some important side effects and warnings associated with this medication. Do not use it if you are currently taking a 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 your cough lasts more than seven days, returns, or is accompanied by fever, rash, or a persistent headache, you should stop using the medication and consult a doctor, as these could indicate a more serious health issue. Additionally, consult your doctor before using this medication if you have a chronic cough related to smoking, asthma, chronic bronchitis, or emphysema, or if your cough produces excessive mucus.

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. Additionally, wait at least two weeks after stopping an MAOI before using this product. If you're unsure whether your medication contains an MAOI, please consult your doctor or pharmacist.

Before using this product, it's important to 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. Always follow the dosage instructions carefully and do not exceed the recommended amount.

If your cough lasts more than seven days, returns, or is accompanied by fever, rash, or a 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 call the Poison Control Center at 1-800-222-1222.

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 err on the side of caution—if you notice any concerning symptoms or if you’re unsure, don’t hesitate to get help right away. Your health and safety are 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 and any medications you may consider.

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 every 4 hours. Always keep the medication out of reach of younger children to prevent accidental ingestion.

In the event of an overdose, it's crucial to seek medical help immediately or contact a Poison Control Center at 1-800-222-1222. Your child's safety is a top priority, so please follow these guidelines carefully.

Geriatric Use

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

Remember, even if there are no specific dosage adjustments or safety concerns mentioned, your healthcare provider may still recommend monitoring for any potential side effects or interactions with other medications you may be taking. Always prioritize open communication with your healthcare team to ensure the best care.

Renal Impairment

If you have kidney problems, it's important to know that the drug insert does not provide specific information about dosage adjustments, special monitoring, or safety considerations for your condition. This means that there are no tailored guidelines for how this medication 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 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 be cautious when taking dextromethorphan, especially if you are also using a prescription medication called a monoamine oxidase inhibitor (MAOI). Using dextromethorphan while on an MAOI, or within two weeks of stopping one, can lead to serious interactions that may affect your health.

Always discuss any medications you are taking with your healthcare provider to ensure they are safe to use together. This conversation is crucial for avoiding potential complications and ensuring your treatment is effective.

Storage and Handling

To ensure the best quality and safety of your product, store it at room temperature, specifically between 20-25ºC (68-77ºF). It's important not to refrigerate the product, as this can affect its effectiveness. Always keep the dosing cup with the product for proper use.

When handling the product, check the safety seal around or under the cap. If this seal is broken or missing, do not use the product, as it may not be safe. Following these guidelines will help you use the product safely and effectively.

Additional Information

You should take this medication orally, with the recommended dose for adults and children aged 12 and older being 20 mL every 4 hours. However, do not exceed 6 doses in a 24-hour period. If you are pregnant or breastfeeding, it's important to consult a healthcare professional before using this medication.

Make sure to keep it out of reach of children. In case of an overdose, seek medical help immediately or contact a Poison Control Center at 1-800-222-1222.

FAQ

What is MUCUS RELIEF DM MAX?

MUCUS RELIEF DM MAX is a maximum strength, multi-symptom relief medication that acts as a cough suppressant and expectorant.

What does MUCUS RELIEF DM MAX do?

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

Who can use MUCUS RELIEF DM MAX?

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

How should I take MUCUS RELIEF DM MAX?

You should take 20 mL every 4 hours, not exceeding 6 doses in a 24-hour period. Use the dosing cup provided for accurate measurement.

Are there any warnings associated with MUCUS RELIEF DM MAX?

Do not use if you are taking a prescription monoamine oxidase inhibitor (MAOI) or for 2 weeks after stopping an MAOI. Consult a doctor if you have a persistent cough or if your cough lasts more than 7 days.

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.

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.

How should I store MUCUS RELIEF DM MAX?

Store the product between 20-25ºC (68-77ºF) and do not refrigerate. Ensure the safety seal is intact before use.

Packaging Info

Below are the non-prescription pack sizes of Mucus Relief Dm (dextromethorphan hbr, guaifenesin). 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 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 cough and the impulse to cough, thereby aiding in sleep.

Limitations of Use: There are no teratogenic or nonteratogenic effects associated with this drug.

Dosage and Administration

The maximum recommended dosage is 6 doses within a 24-hour period. Dosing should be measured exclusively with the dosing cup provided; the use of any other dosing device is not advised. It is essential to keep the dosing cup with the product for accurate measurement.

For adults and children aged 12 years and older, the recommended dose is 20 mL every 4 hours, as needed or as directed by a healthcare professional. The use of this product is not recommended for children under 12 years of age.

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.

Furthermore, it is contraindicated to exceed the recommended dosage while using this product.

Warnings and Precautions

Patients should not use 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. Additionally, this product should not be used for at least two weeks after discontinuing an MAOI. If there is uncertainty regarding whether a prescription drug 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. Patients with a cough that produces excessive phlegm (mucus) should also consult a healthcare provider before use.

While using this product, it is crucial for patients to adhere strictly to the recommended dosage and not exceed the directed amount.

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

In the event of an overdose, immediate medical assistance should be sought, or the patient should contact a Poison Control Center at 1-800-222-1222 without delay.

Side Effects

Patients should be aware of the potential adverse reactions associated with the use of this medication. Serious adverse reactions may occur, particularly in patients who are currently taking or have recently discontinued a prescription monoamine oxidase inhibitor (MAOI). The use of this medication is contraindicated in such cases, as it may lead to significant health risks.

Common adverse reactions include the need to discontinue use and consult a healthcare professional if a cough persists for more than 7 days, recurs, or is accompanied by fever, rash, or a persistent headache. These symptoms may indicate a serious underlying condition that requires medical evaluation.

Additionally, patients should seek medical advice before using this medication if they have a persistent or chronic cough, such as that associated with smoking, asthma, chronic bronchitis, or emphysema. Coughs that produce excessive phlegm (mucus) should also prompt consultation with a healthcare provider prior to use.

Drug Interactions

The concomitant use of dextromethorphan with prescription monoamine oxidase inhibitors (MAOIs) is contraindicated. This combination may result in serious interactions, including the potential for hypertensive crises. It is advised that dextromethorphan not be administered to patients currently taking MAOIs or within two weeks following the discontinuation of MAOI therapy.

No additional drug interactions or laboratory test interactions have been identified.

Packaging & NDC

Below are the non-prescription pack sizes of Mucus Relief Dm (dextromethorphan hbr, guaifenesin). 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 20 mL every 4 hours. It is important to keep this medication out of reach of children. In the event of an overdose, medical assistance should be sought immediately, or contact a Poison Control Center at 1-800-222-1222.

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 no specific information regarding dosage adjustments, special monitoring, or safety considerations provided in the drug insert text. Therefore, healthcare professionals should exercise caution and consider individual patient factors when prescribing this medication to patients with reduced kidney function. Regular monitoring of renal function may be warranted in these patients, although specific guidelines are not outlined in the prescribing information.

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. Healthcare professionals are advised to contact a 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 an overdose. Symptoms may vary depending on the substance involved, and healthcare providers should be prepared to assess and manage these symptoms accordingly.

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 arise 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 identified several adverse reactions reported voluntarily or through surveillance programs. These include dizziness, nausea, vomiting, and allergic reactions such as rash, pruritus, and urticaria. Additionally, cases of confusion, hallucinations, and respiratory depression have been documented. There have also been reports of serotonin syndrome, particularly in patients using the product concomitantly with monoamine oxidase inhibitors (MAOIs). It is important to note that these reactions were reported during the postmarketing experience and may not be directly related to the use of the product.

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 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 be instructed to refrain from using this product for at least two weeks after discontinuing an MAOI. If patients are uncertain whether their prescription includes an MAOI, they should be encouraged to consult their doctor or pharmacist prior to use.

Patients should be informed to discontinue use and consult a healthcare professional if their cough persists for more than seven days, returns, or is accompanied by fever, rash, or a persistent headache, as these symptoms may indicate a serious condition. It is important to emphasize that patients must adhere to the recommended dosage and not exceed the directed amount while using this product.

Additionally, healthcare providers should recommend that patients 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 advised to seek medical advice if their cough is accompanied by excessive phlegm (mucus).

Storage and Handling

The product is supplied in a configuration that includes a dosing cup. It is essential to store the product at a temperature range of 20-25ºC (68-77ºF). Refrigeration is not recommended, as it may compromise the integrity of the product.

To ensure safety and quality, the product features a tamper-evident seal. Users should not utilize the product if the printed safety seal around or under the cap is broken or missing.

Additional Clinical Information

The medication is administered orally, with a recommended dosage of 20 mL every 4 hours for adults and children aged 12 years and older. Patients should not exceed 6 doses within a 24-hour period.

Clinicians should counsel patients to consult a health professional if they are pregnant or breastfeeding before use. It is also important to advise patients to keep the medication out of reach of children and to seek immediate medical assistance or contact a Poison Control Center (1-800-222-1222) in the event of an overdose.

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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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.