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Mucus Relief Dm

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Active ingredients
  • Guaifenesin 400 mg/20 mL
  • Dextromethorphan Hydrobromide 20 mg/20 mL
Other brand names
Drug classes
Expectorant, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist
Dosage form
Solution
Route
Oral
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2019
Label revision date
December 2, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredients
  • Guaifenesin 400 mg/20 mL
  • Dextromethorphan Hydrobromide 20 mg/20 mL
Other brand names
Drug classes
Expectorant, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist
Dosage form
Solution
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2019
Label revision date
December 2, 2025
Manufacturer
WINCO FOODS, LLC
Registration number
M012
NDC root
67091-342
Drug Information (PDF)
Prescribing information, PDF file
Packaging Info
Packaging & NDC Codes

If you are a healthcare professional or from the pharmaceutical industry please visit this version.

If you are a consumer or patient please visit this version.

Drug Overview

Fast Acting Mucus Relief DM is a medication designed to help you manage cough and chest congestion. It works by loosening phlegm (mucus) and thinning bronchial secretions, making it easier to clear your airways. This product temporarily relieves cough caused by minor throat and bronchial irritation, which can occur with the common cold or from inhaled irritants.

The formula contains two active ingredients: DEXTROMETHORPHAN HBr, which acts as a cough suppressant to reduce the intensity of coughing, and GUAIFENESIN, an expectorant that helps thin and loosen mucus. Together, these ingredients help make your coughs more productive and can alleviate the urge to cough, allowing you to rest better.

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 coughing caused by minor throat and bronchial irritation, which can happen with the common cold or from inhaling irritants. It also helps reduce the intensity of your cough and can lessen the urge to cough, making it easier for you to get a good night's sleep.

Dosage and Administration

It's important to follow the correct dosage when taking this medication to ensure your safety and effectiveness. For adults and children aged 12 years and older, you should take 20 mL every 4 hours, but remember not to exceed 6 doses in a 24-hour period. If you have any questions about your specific situation, it's always best to consult with your doctor.

When measuring your dose, use only the dosing cup that comes with the medication. This ensures you get the right amount. Avoid using this dosing cup for any other products, as it could lead to incorrect dosing. If your child is under 12 years old, do not use this medication for them. Always prioritize safety and follow these guidelines closely.

What to Avoid

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

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 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 monoamine oxidase inhibitor (MAOI), which is a type of medication for depression or certain other conditions, or if you have stopped taking an MAOI within the last two weeks. If you have a persistent cough due to smoking, asthma, chronic bronchitis, or emphysema, or if your cough produces a lot of mucus, consult your doctor before using this product.

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 issue. Additionally, if you are pregnant or breastfeeding, it's important to talk to a healthcare professional before using this medication. Always keep it out of reach of children, and in case of an overdose, contact medical help or a Poison Control Center immediately at 1-800-222-2222.

Warnings and Precautions

You should not use this product if you are currently taking a prescription monoamine oxidase inhibitor (MAOI), which is a type of medication used for depression or certain other conditions, or if you have stopped taking an MAOI within the last two weeks. If you're unsure whether your medication contains an MAOI, please consult your doctor or pharmacist before using this product.

Before using this medication, 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 1-800-222-2222. Additionally, stop using this product and call your doctor 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 health issue.

Overdose

If you suspect an overdose, it’s crucial to seek medical help immediately. You can contact a Poison Control Center at 1-800-222-2222 for guidance. Signs of an overdose can vary, but they may include unusual drowsiness, confusion, or difficulty breathing.

Always take overdoses 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. If your child is under 12 years old, you should not use this medication for them. For those aged 12 and older, the recommended dosage is 20 mL every 4 hours, but make sure not to exceed 6 doses in a 24-hour period.

When measuring the dose, always use the dosing cup that comes with the medication, and avoid using it with any other products to ensure accurate dosing. Keeping these guidelines in mind will help ensure the safe use of this medication for older children and teenagers.

Geriatric Use

While there is no specific information available about the use of this medication in older adults, it’s important to approach any new treatment with caution. Since older adults may have different health needs and responses to medications, you should always consult with a healthcare provider before starting any new medication. They can help determine the right dosage and monitor for any potential side effects, ensuring that the treatment is safe and effective for you or your loved one.

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 should be used 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 determine the best course of action based on your kidney function and overall health.

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 (issues with liver function).

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 use of your product, store it at room temperature. It's important not to refrigerate it, as this can affect its effectiveness. When you're ready to use the product, a dosing cup is provided to help you measure the correct amount safely and accurately.

Always handle the product with clean hands and ensure that the dosing cup is also clean before use. Following these simple guidelines will help you use the product safely and effectively.

Additional Information

You should take this medication orally, with adults and children aged 12 years and older typically taking 20 mL every 4 hours. If you have a child under 12, do not use this medication for them.

If you are pregnant or breastfeeding, it's important to consult a healthcare professional before using this medication. Always keep it out of reach of children, and in case of an overdose, seek medical help immediately or contact a Poison Control Center at 1-800-222-2222.

FAQ

What is Fast Acting Mucus Relief DM used for?

Fast Acting Mucus Relief DM helps loosen phlegm (mucus) and thin bronchial secretions, making coughs more productive. It temporarily relieves cough due to minor throat and bronchial irritation from the common cold or inhaled irritants.

What are the active ingredients in Fast Acting Mucus Relief DM?

It contains DEXTROMETHORPHAN HBr 20 mg, a cough suppressant, and GUAIFENESIN 400 mg, an expectorant that helps control cough and relieve chest congestion.

Who can use Fast Acting Mucus Relief DM?

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 Fast Acting Mucus Relief DM?

You should take 20 mL every 4 hours, not exceeding 6 doses in a 24-hour period. Use the dosing cup provided and do not use it with other products.

Are there any warnings associated with Fast Acting Mucus Relief DM?

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 cough with too much phlegm.

What should I do if I experience an overdose?

In case of overdose, seek medical help or contact a Poison Control Center immediately at 1-800-222-2222.

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

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

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 consult a doctor as these may be signs of a serious condition.

Packaging Info

Below are the non-prescription pack sizes of Mucus Relief Dm (dextromethorphan hbr and 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 assists in loosening phlegm (mucus) and thinning bronchial secretions, thereby facilitating the expulsion of bothersome mucus and enhancing the productivity of coughs.

Additionally, this drug temporarily alleviates 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

The maximum recommended dosage is 6 doses within a 24-hour period. Healthcare professionals should instruct patients to measure the medication exclusively with the dosing cup provided, and to refrain from using this cup with any other products to ensure accurate dosing.

For adults and children aged 12 years and older, the recommended dose is 20 mL administered every 4 hours as needed. It is imperative that patients do not exceed the specified dosage.

This medication is not indicated for use in 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 uncertain whether their prescription medication contains an MAOI.

Exceeding the recommended dosage is also contraindicated.

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, use of this product is contraindicated for a period of 2 weeks following the cessation of 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. Furthermore, patients with a cough that produces excessive phlegm (mucus) should also consult a healthcare provider prior to use.

In the event of an overdose, immediate medical assistance should be sought, or the Poison Control Center should be contacted at 1-800-222-2222.

Patients are advised to 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. These symptoms may indicate a more serious underlying condition that requires medical evaluation.

Side Effects

Patients should be aware of the potential adverse reactions associated with this product. Serious warnings include the contraindication of use in 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, or Parkinson's disease. Patients uncertain about whether their prescription contains 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. Additionally, those experiencing a cough accompanied by excessive phlegm (mucus) should also consult a doctor.

Patients are instructed to discontinue use and seek medical attention if their cough persists for more than seven days, recurs, or is accompanied by fever, rash, or a persistent headache. These symptoms may indicate a serious underlying condition.

For pregnant or breastfeeding individuals, it is recommended to consult a healthcare professional before use. Furthermore, this product should be kept out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or the Poison Control Center should be contacted at 1-800-222-2222.

Drug Interactions

There are currently no documented drug interactions associated with this medication. Additionally, there are no known 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 (dextromethorphan hbr and 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, with a maximum of 6 doses in any 24-hour period. It is essential to measure the dosage using only the dosing cup provided with the medication, and this cup should not be used with other products to ensure accurate dosing.

Geriatric Use

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

Pregnancy

Pregnant patients and those who are breastfeeding should consult a healthcare professional prior to using this medication. It is important to assess the potential risks and benefits, as well as any available data regarding fetal outcomes and lactation. Healthcare providers can offer guidance tailored to individual circumstances, ensuring the safety of both the patient and the developing fetus or nursing infant.

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. 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.

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. Healthcare professionals are advised to contact a Poison Control Center without delay. The national helpline for poison control can be reached at 1-800-222-2222.

Prompt intervention is crucial in managing potential overdose situations. Symptoms may vary depending on the substance involved, and healthcare providers should be prepared to assess and address any clinical manifestations that arise.

Management procedures should include a thorough evaluation of the patient's condition, supportive care, and symptomatic treatment as necessary. Continuous monitoring and appropriate interventions are essential to ensure patient safety and recovery.

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. Additionally, there are no detailed findings related to nonclinical toxicology or animal pharmacology and toxicology available.

Postmarketing Experience

There have been reports of various adverse reactions occurring in the postmarketing experience. These include allergic reactions, such as anaphylaxis and angioedema. Additionally, serious skin reactions have been documented, including Stevens-Johnson syndrome and toxic epidermal necrolysis. Neuropsychiatric events have also been reported, which encompass hallucinations, agitation, and confusion.

Patient Counseling

Healthcare providers should advise patients to keep the medication out of reach of children to prevent accidental ingestion. In the event of an overdose, patients should be instructed to seek medical help immediately or contact a Poison Control Center at 1-800-222-2222.

Patients must be cautioned not to exceed the recommended dosage. They should be informed 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 underlying condition.

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

Storage and Handling

The product is supplied with a dosing cup included for accurate measurement. It should be stored at room temperature, ensuring that it is not refrigerated to maintain its efficacy. Proper handling is essential to preserve the integrity of the product.

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. It is contraindicated for use in children under 12 years of age.

Clinicians should counsel patients to consult a health professional if they are pregnant or breastfeeding. Additionally, it is important to keep the medication out of reach of children, and in the event of an overdose, patients should seek medical assistance or contact a Poison Control Center immediately at 1-800-222-2222.

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.