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Mucus Relief Dm Extended Release Caplets

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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, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2018
Label revision date
June 27, 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, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2018
Label revision date
June 27, 2025
Manufacturer
ATLANTIC BIOLOGICALS CORP.
Registration number
ANDA209692
NDC root
17856-1162

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Drug Overview

Mucus Relief DM ER is a medication that combines two active ingredients: guaifenesin (an expectorant) and dextromethorphan HBr (a cough suppressant). It comes in extended-release tablets designed to provide relief for up to 12 hours. This medication helps to loosen phlegm (mucus) and thin bronchial secretions, making it easier to clear mucus from your airways and allowing for more productive coughing.

You can use Mucus Relief DM ER to temporarily relieve cough caused by minor throat and bronchial irritation, which may occur with the common cold or from inhaling irritants. It also helps reduce the intensity of your cough and can suppress the urge to cough, making it easier for you to get a good night's sleep.

Uses

This medication is designed to help you breathe easier by loosening phlegm (mucus) and thinning bronchial secretions. This action helps clear out bothersome mucus from your airways, making your coughs more productive.

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

Dosage and Administration

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

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

What to Avoid

You should avoid using this medication if you are a child 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. It's important to 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 for clarification.

Side Effects

You should be aware of some important warnings and potential side effects when using this product. It is not recommended for children under 12 years old, and you should avoid 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 a doctor before using this product.

While using this medication, do not exceed the recommended dosage. If your cough lasts more than seven days, returns, or is accompanied by fever, rash, or a persistent headache, stop using it 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 use. Always keep this product out of reach of children, and in case of an overdose, seek immediate medical help or contact a Poison Control Center at 1-800-222-1222.

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 psychiatric 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 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.

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 about the appropriate use of this medication for 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 if you or a loved one is an older adult, it’s important to consult with a healthcare provider before starting the medication. They can help determine the best approach based on individual health needs and any other medications being taken. Always prioritize open communication with your healthcare team to ensure safe and effective treatment.

Renal Impairment

If you have kidney problems, it's important to know that the 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 is safe and effective for your specific condition. They can help you understand any necessary precautions or adjustments based on your kidney 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 may affect you differently due to your liver health.

Always consult your healthcare provider for personalized advice and to discuss any concerns you may have regarding your liver condition and the use of this medication. They can help ensure that you receive the safest and most effective treatment.

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, 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 and well-being are the top priority, so don't hesitate to ask questions about your treatments.

Storage and Handling

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

When handling the product, be sure to check the packaging carefully. Do not use it if the blister unit is torn, broken, or shows any signs of tampering, as this could compromise safety. Following these guidelines will help you use the product safely and effectively.

Additional Information

No further information is available.

FAQ

What is Mucus Relief DM ER?

Mucus Relief DM ER is a medication that contains Guaifenesin (600 mg), an expectorant, and Dextromethorphan HBr (30 mg), a cough suppressant, in extended-release tablets.

How does Mucus Relief DM ER work?

It helps loosen phlegm and thin bronchial secretions, making coughs more productive, while also controlling the impulse to cough.

Who can use Mucus Relief DM ER?

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

What is the recommended dosage for adults and children over 12?

The recommended dosage is 1 or 2 tablets every 12 hours, not exceeding 4 tablets in 24 hours.

Are there any warnings for Mucus Relief DM ER?

Do not use if you are taking a prescription monoamine oxidase inhibitor (MAOI) or if the blister unit is torn or broken. Consult a doctor if you have a persistent cough or if symptoms worsen.

What should I do if I experience an overdose?

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

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

If you are pregnant or breastfeeding, consult a health professional before use.

How should I take Mucus Relief DM ER?

Take the tablets with a full glass of water and do not crush, chew, or break them.

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

Stop use 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)

Description

Mucus Relief DM ER is an extended-release formulation containing 600 mg of guaifenesin, an expectorant, and 30 mg of dextromethorphan HBr, a cough suppressant. This combination is designed to provide 12-hour relief by controlling cough and thinning and loosening mucus. The product is presented in the form of extended-release tablets, which are comparable to the active ingredients found in Mucinex DM. The packaging includes a tamper-evident feature; the product should not be used if the blister unit is torn, broken, or shows any signs of tampering.

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.

Limitations of use include the absence of teratogenic or nonteratogenic effects as per the available data.

Dosage and Administration

The tablet should be taken whole; it must not be crushed, chewed, or broken. It is recommended to administer the tablet with a full glass of water. 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 or 2 tablets every 12 hours, with a maximum of 4 tablets in a 24-hour period. Use 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 advised to consult a healthcare professional if there is uncertainty regarding the presence of an MAOI in any prescription medication.

Warnings and Precautions

The use of this product is contraindicated in children under 12 years of age. Additionally, it must not be administered to individuals currently taking a prescription monoamine oxidase inhibitor (MAOI) or within two weeks of discontinuing such medication. MAOIs are commonly prescribed for depression, psychiatric or emotional conditions, and Parkinson's disease. If there is uncertainty regarding the presence of an MAOI in a prescription medication, it is imperative to consult a healthcare professional, such as a doctor or pharmacist, prior to use.

Healthcare professionals should exercise caution and advise patients to seek medical advice before using this product if they have a persistent or chronic cough, particularly those associated with smoking, asthma, chronic bronchitis, or emphysema. Furthermore, patients should be advised to consult a healthcare provider if their cough is accompanied by excessive phlegm (mucus).

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 be instructed 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, 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 are advised to consult a healthcare professional if they are uncertain whether their prescription includes an MAOI.

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).

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 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 health professional prior to use. Additionally, 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 1-800-222-1222.

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 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 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, 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. The potential risks and benefits must be carefully considered in these populations to ensure the safety of both the mother and the fetus or 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 not been specifically addressed in the available prescribing information. 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 data when prescribing to this patient population.

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 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 support 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 may include supportive care, symptomatic treatment, and specific antidotes if applicable. Healthcare providers should remain vigilant and prepared to implement appropriate interventions based on the clinical presentation of the patient.

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 rash. These events have been documented in the context of routine pharmacovigilance activities.

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 2 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 condition.

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 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 exhibits any signs of tampering.

For optimal storage, the product should be maintained at a temperature range of 20º to 25ºC (68º to 77ºF). Proper adherence to these storage conditions is crucial to ensure the integrity and efficacy of the product.

Additional Clinical Information

No further data are available.

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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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.