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Maximum Strength Cough and Congestion Extended Release

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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, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2024
Label revision date
July 16, 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, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2024
Label revision date
July 16, 2025
Manufacturer
CVS Pharmacy, Inc.
Registration number
ANDA206941
NDC root
51316-060

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Drug Overview

DExtromethorphan HBr and Guaifenesin are combined in an extended-release tablet designed to help relieve cough and congestion. Dextromethorphan is a cough suppressant that controls the impulse to cough, making it easier for you to rest, while Guaifenesin is an expectorant that helps loosen phlegm (mucus) and thins bronchial secretions. This combination works to clear your bronchial passageways of bothersome mucus, making your coughs more productive and providing temporary relief from coughs caused by minor throat and bronchial irritation, such as those associated with the common cold.

This medication is formulated to provide relief for up to 12 hours, helping to ease the intensity of coughing and allowing you to breathe more comfortably. If you're dealing with a cough due to irritants or a cold, this product may help you find some relief.

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

When taking this medication, it's important to swallow the extended-release tablet whole. Do not crush, chew, or break it, as this can affect how the medicine works. Make sure to take it with a full glass of water, and you can take it at any time, regardless of meals.

For adults and children aged 12 years and older, the recommended dosage is one extended-release tablet every 12 hours. 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

It's important to follow the instructions provided with your medication carefully. You should not use more than the directed amount, as taking more than recommended can lead to unwanted effects.

While there are no specific contraindications or concerns about abuse, misuse, or dependence (which means relying on a substance to function normally), it's always best to use medications responsibly. If you have any questions or concerns about your medication, please consult your healthcare provider for guidance.

Side Effects

You should be aware that this medication is not recommended for children under 12 years of age. Additionally, if you are currently taking or have recently stopped a prescription monoamine oxidase inhibitor (MAOI)—a type of medication used for depression or certain other conditions—you should avoid using this product.

If your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, it’s important to stop using the medication and consult a doctor, as these may indicate a more serious health issue. Before using this product, talk to your doctor 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 medication if you are under 12 years old. Additionally, avoid using 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. If you’re unsure whether your medication contains an MAOI, please consult your doctor or pharmacist before taking this product.

If you suspect an overdose, it’s crucial to seek emergency medical help immediately or contact a Poison Control Center at 1-800-222-1222. You should also stop using this medication and call your doctor if your cough lasts more than 7 days, returns, or occurs alongside symptoms like fever, rash, or a persistent headache, as these may indicate a more serious health issue.

Overdose

If you suspect an overdose, it's important to be aware that there is no specific information available about the effects of taking too much of this medication. However, if you experience unusual symptoms or feel unwell after taking the medication, you should seek medical attention immediately.

Signs of an overdose can vary, but they may include severe drowsiness, confusion, or difficulty breathing. If you notice any of these symptoms, or if you are unsure about your situation, don’t hesitate to contact a healthcare professional or call emergency services for guidance. Your safety is the top priority, so it's always better to err on the side of caution.

Pregnancy Use

If you are pregnant or breastfeeding, it’s important to consult with a healthcare professional before using this medication. They can provide guidance on whether it’s safe for you and your baby. Always prioritize your health and the health of your child by seeking expert advice.

Lactation Use

If you are pregnant or breastfeeding, it’s important to consult with a healthcare professional before using any medication. This ensures that you understand any potential risks and can make informed decisions about your health and the health of your baby. Always prioritize open communication with your doctor regarding your breastfeeding journey.

Pediatric Use

It is important to note that this medication should not be used in children under 12 years of age. If you are a parent or caregiver, please ensure that your child meets this age requirement before considering this treatment. Always consult with a healthcare professional if you have any questions or concerns regarding the use of this medication for your child.

Geriatric Use

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. If you or a loved one is an older adult, it’s always a good idea to discuss any medications with a healthcare provider, especially since older adults may have different health needs and may be taking other medications.

Since there are no dosage adjustments or special precautions mentioned for elderly patients, your healthcare provider can help determine the best approach for you, considering your overall health and any other medications you may be taking. 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 there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that the usual recommendations for monitoring or safety considerations for patients with renal impairment (kidney issues) are not provided.

Always consult your healthcare provider for personalized advice and to ensure that any medications you take are safe and appropriate for your kidney health. They can help you understand how your condition may affect your treatment plan.

Hepatic Impairment

If you have liver problems, it's important to know that there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that the standard recommendations for the medication do not change based on liver impairment. However, it’s always a good idea to discuss your liver health with your healthcare provider before starting any new medication. They can help ensure that your treatment is safe and effective for you.

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 medication. Additionally, you should wait at least two weeks after stopping an MAOI before starting this medication.

Always discuss any medications you are taking with your healthcare provider to ensure your safety and avoid potentially harmful interactions. Your provider can help you understand how different drugs may affect each other and your overall health.

Storage and Handling

To ensure the best performance of your product, store it at a temperature between 20° to 25°C (68° to 77°F). This temperature range helps maintain the integrity and effectiveness of the device.

When handling the product, be sure to do so with clean hands and in a clean environment to avoid contamination. If you have any specific disposal instructions, please follow them carefully to ensure safety and compliance.

Additional Information

You should take this medication orally, with adults and children aged 12 years and older advised to take 1 tablet every 12 hours, not exceeding 2 tablets in a 24-hour period. If you are under 12 years old, do not use this medication.

If you are pregnant or breastfeeding, consult a healthcare professional before using this medication. Always 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 Dextromethorphan HBr and Guaifenesin used for?

Dextromethorphan HBr and Guaifenesin are used as a cough suppressant and expectorant to temporarily relieve cough due to minor throat and bronchial irritation, helping to loosen phlegm and make coughs more productive.

How should I take Dextromethorphan HBr and Guaifenesin?

You should take 1 extended-release 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 this medication?

This medication should not be used by children under 12 years of age or by anyone currently taking a prescription monoamine oxidase inhibitor (MAOI) or within 2 weeks of stopping an MAOI.

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, you should stop use and ask a doctor, as these could be signs of a serious illness.

Is it safe to use Dextromethorphan HBr and Guaifenesin during pregnancy or breastfeeding?

If you are pregnant or breastfeeding, you should ask a health professional before using this medication.

What are the storage conditions for this medication?

Store Dextromethorphan HBr and Guaifenesin at 20° to 25°C (68° to 77°F).

Packaging Info

Below are the non-prescription pack sizes of Maximum Strength Cough and Congestion Extended Release (guaifenesin and dextromethorphan hbr). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Maximum Strength Cough and Congestion Extended Release.
Details

Drug Information (PDF)

This file contains official product information for Maximum Strength Cough and Congestion Extended Release, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Description

DEXTROMETHORPHAN HBr and GUAIFENESIN Extended-release Tablets are formulated to provide a combination of 60 mg of Dextromethorphan HBr, a cough suppressant, and 1200 mg of Guaifenesin, an expectorant. These tablets are designed for extended-release, offering a therapeutic effect that lasts for 12 hours. The formulation effectively controls cough and alleviates chest congestion by thinning and loosening mucus. Each package contains 14 tablets, and the product is comparable to the active ingredients found in Maximum Strength Mucinex DM.

Uses and Indications

This drug is indicated for the relief of cough associated with minor throat and bronchial irritation, which may occur due to the common cold or inhaled irritants. It aids in loosening phlegm (mucus) and thinning bronchial secretions, thereby facilitating the 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 assist patients in achieving restful sleep.

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

Dosage and Administration

The extended-release tablet should be taken with a full glass of water. It is important to note that the tablet must not be crushed, chewed, or broken, as this may affect the release mechanism of the medication.

For adults and children aged 12 years and older, the recommended dosage is one extended-release tablet every 12 hours. The total daily dosage should not exceed two extended-release tablets within a 24-hour period. This medication can be administered without regard to the timing of meals.

Use of this product is not recommended for children under 12 years of age.

Contraindications

There are no specific contraindications identified for this product. However, it is advised that the product should not be used in excess of the directed dosage.

Warnings and Precautions

The use of this product is contraindicated in children under 12 years of age. Healthcare professionals should ensure that this medication is not prescribed to this demographic to avoid potential adverse effects.

Patients currently taking a prescription monoamine oxidase inhibitor (MAOI), which includes certain medications for depression, psychiatric or emotional conditions, or Parkinson’s disease, should not use this product. Additionally, it is essential to refrain from using this medication for at least two weeks after discontinuing an MAOI. If there is uncertainty regarding the presence of an MAOI in a patient's current medication regimen, it is advisable to consult a healthcare provider or pharmacist prior to administration.

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

Healthcare professionals should instruct patients to discontinue use and seek medical advice 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 more serious underlying condition that requires further evaluation and intervention.

Side Effects

Patients should be aware of the potential adverse reactions associated with this product. Serious adverse reactions may occur, and it is crucial 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, as these symptoms could indicate a serious underlying condition.

This product is contraindicated in children under 12 years of age. Additionally, it should not be used in conjunction with prescription monoamine oxidase inhibitors (MAOIs) or within 2 weeks of discontinuing such medications, which are often prescribed for depression, psychiatric or emotional conditions, or Parkinson’s disease. Patients uncertain about whether their prescription includes an MAOI are advised to consult a doctor or pharmacist 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).

Drug Interactions

The concomitant use of this medication 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 initiate therapy with this medication while currently on an MAOI or within 2 weeks of discontinuing an MAOI. This precaution is essential to avoid potentially serious interactions that may arise from the pharmacodynamic effects of both drug classes.

Packaging & NDC

Below are the non-prescription pack sizes of Maximum Strength Cough and Congestion Extended Release (guaifenesin and dextromethorphan hbr). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Maximum Strength Cough and Congestion Extended Release.
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 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 drug 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 the use of 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 available information.

Overdosage

In the absence of specific information regarding overdosage in the provided sections of the Summary of Product Characteristics (SPL), healthcare professionals are advised to exercise caution when administering the medication.

It is essential to monitor patients closely for any signs of adverse effects or symptoms that may arise from excessive dosing. In the event of suspected overdosage, immediate medical attention should be sought.

Management of overdosage should be guided by the clinical presentation of the patient. Supportive care and symptomatic treatment are recommended, as there are no established antidotes for this medication. Healthcare providers should ensure that patients receive appropriate monitoring and intervention based on their individual clinical status.

For further guidance, healthcare professionals are encouraged to consult local poison control centers or relevant clinical guidelines.

Nonclinical Toxicology

If pregnant or breast-feeding, 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

Reports of side effects have been received through voluntary submissions and surveillance programs. Healthcare professionals and patients are encouraged to report any adverse events to the designated contact number provided for this purpose.

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 for patients to be aware that they should discontinue use and consult a doctor if their cough persists for more than 7 days, returns, or is accompanied by symptoms such as fever, rash, or a persistent headache, as these may indicate a serious underlying condition.

Patients should be instructed to adhere strictly to the recommended dosage and not exceed the directed amount when using this product. Additionally, healthcare providers should encourage patients to consult with a doctor prior to use if they have a persistent or chronic cough, particularly if it is associated with smoking, asthma, chronic bronchitis, or emphysema. Furthermore, patients should be advised to 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 20° to 25°C (68° to 77°F) to maintain its integrity and efficacy. Proper storage conditions must be adhered to, ensuring that the product is kept within the specified temperature limits to prevent degradation.

Additional Clinical Information

The medication is administered orally, with the recommended dosage for adults and children aged 12 years and older being one tablet every 12 hours, not to exceed two tablets within a 24-hour period. It is contraindicated for 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. In the event of an overdose, patients should seek medical assistance or contact a Poison Control Center immediately at 1-800-222-1222. No further information is available regarding laboratory tests, abuse potential, or postmarketing experiences.

Drug Information (PDF)

This file contains official product information for Maximum Strength Cough and Congestion Extended Release, 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 Maximum Strength Cough and Congestion Extended Release, 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.