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Mucus Relief

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Active ingredient
Guaifenesin 600 mg
Other brand names
Drug class
Expectorant
Dosage form
Tablet, Multilayer, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2025
Label revision date
August 12, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Guaifenesin 600 mg
Other brand names
Drug class
Expectorant
Dosage form
Tablet, Multilayer, Extended Release
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 2025
Label revision date
August 12, 2025
Manufacturer
CVS WOONSOCKET PRESCRIPTION CENTER, INCORPORATED
Registration number
ANDA078912
NDC root
51316-470
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

Guaifenesin is an expectorant, which means it helps relieve chest congestion by thinning and loosening mucus in your airways. Available in 600 mg extended-release tablets, it works by helping to loosen phlegm (a type of mucus) and thin bronchial secretions, making it easier for you to cough up bothersome mucus and clear your bronchial passageways.

This medication is designed for both immediate and extended release, providing effective relief from congestion. If you're experiencing a cough due to mucus buildup, Guaifenesin can help make your coughs more productive, allowing you to breathe more easily.

Uses

This medication is designed to help you breathe easier by loosening phlegm (mucus) and thinning bronchial secretions. By doing so, it helps clear out bothersome mucus from your bronchial passageways, making your coughs more productive. This can be particularly helpful if you're dealing with respiratory issues that involve excess mucus.

Rest assured, there are no known teratogenic effects (which means it doesn't cause birth defects) associated with this medication, making it a safer option for those concerned about such risks.

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 and older, the recommended dosage is 1 or 2 tablets every 12 hours. However, be careful not to exceed 4 tablets in a 24-hour period. If you have children under 12, this medication is not suitable for them, so please avoid using it for that age group.

What to Avoid

You should not use this medication for children under 12 years of age. It's important to follow this guideline to ensure safety and avoid potential health risks. If you have any questions or concerns about its use, please consult with a healthcare professional for further guidance.

Side Effects

If you are considering using this medication, please be aware that it is not recommended for children under 12 years of age. Before using it, consult your doctor if you have a persistent cough due to smoking, asthma, chronic bronchitis, or emphysema, or if your cough is accompanied by excessive mucus.

You should stop using the medication and contact your doctor if your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, as these symptoms may indicate a more serious health issue.

Warnings and Precautions

You should not use this medication if you are under 12 years of age. Before taking it, consult 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 your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, stop using the medication and contact your doctor, as these may indicate a more serious condition. In the event of an overdose, seek emergency 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 take overdosing seriously. If you notice any of these symptoms or have concerns about your health, don’t hesitate to reach out for help right away. Your safety is the top priority.

Pregnancy Use

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

Lactation Use

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

Pediatric Use

It’s important to know that this medication should not be used in children under 12 years of age. If you have a child in this age group, please consult your healthcare provider for alternative options that are safe and appropriate for their needs. Always prioritize your child's health and safety by following these guidelines.

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 considering this medication, it’s important to consult with a healthcare provider. 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 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 your kidneys are not functioning properly.

Always consult your healthcare provider for personalized advice and to ensure that any medication you take is safe and appropriate for your kidney health. They can help monitor your condition and make any necessary adjustments to your treatment plan.

Hepatic Impairment

If you have liver problems, it's important to know that the provided drug insert does not include specific information about dosage adjustments, special monitoring, or precautions for your condition. This means that there are no established guidelines for how this medication may affect you if you have hepatic impairment (liver issues).

Before starting any new medication, including this one, you should discuss your liver health with your healthcare provider. They can help determine the best approach for your treatment and ensure your safety.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications you are taking, even if there are no specific drug interactions or laboratory test interactions noted for your treatment. This ensures that your healthcare team can provide the best care tailored to your needs.

Always feel free to ask questions and share all the medications and supplements you are using. This helps your provider monitor your health effectively and make informed decisions about your treatment.

Storage and Handling

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

When handling the product, be sure to do so with care to avoid any damage. Always follow any specific instructions provided for use, and if you have any questions about disposal or safety, consult the guidelines that came with your product. Keeping these points in mind will help you use the product safely and effectively.

Additional Information

No further information is available.

FAQ

What is Guaifenesin used for?

Guaifenesin is an expectorant that helps loosen phlegm (mucus) and thin bronchial secretions, making coughs more productive.

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

Adults and children 12 years of age and over should take 1 or 2 tablets every 12 hours, not exceeding 4 tablets in 24 hours.

Can children under 12 use Guaifenesin?

No, Guaifenesin should not be used for children under 12 years of age.

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

You should stop using Guaifenesin and ask a doctor if your cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache.

Are there any teratogenic effects associated with Guaifenesin?

No teratogenic effects have been mentioned for Guaifenesin.

How should I take Guaifenesin?

You should take Guaifenesin with a full glass of water and do not crush, chew, or break the tablet.

What should I do in case of an overdose?

In case of overdose, get medical help or contact a Poison Control Center immediately.

Is it safe to use Guaifenesin while pregnant or breastfeeding?

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

Packaging Info

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

Packaging configurations for Mucus Relief.
Details

Drug Information (PDF)

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

View product document (PDF)

Description

Guaifenesin is an expectorant available in an extended-release tablet formulation, with each tablet containing 600 mg of the active ingredient. This medication is designed to relieve chest congestion by thinning and loosening mucus, facilitating easier expectoration. The product offers both immediate and extended release of the active ingredient, ensuring prolonged therapeutic effects. Each package contains 100 extended-release tablets, providing a comprehensive supply for effective management of symptoms. Guaifenesin is comparable to the active ingredient found in Mucinex®.

Uses and Indications

This drug is indicated for the facilitation of mucus clearance in patients experiencing excessive bronchial secretions. It helps to loosen phlegm and thin bronchial secretions, thereby enhancing the productivity of coughs and aiding in the clearance of bothersome mucus from the bronchial passageways.

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

Dosage and Administration

The tablet should be taken whole; it must not be crushed, chewed, or broken. It is recommended that the tablet be ingested with a full glass of water. This medication can be administered 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. The total daily dosage should not exceed 4 tablets within a 24-hour period.

This medication is not indicated for use in children under 12 years of age.

Contraindications

Use is contraindicated in children under 12 years of age due to safety concerns associated with this population.

Warnings and Precautions

The use of this medication is contraindicated in children under 12 years of age.

Healthcare professionals should advise patients to consult a physician prior to use if they have a persistent or chronic cough, particularly if it is associated with smoking, asthma, chronic bronchitis, or emphysema. Additionally, patients should be cautioned against using this medication if their cough is accompanied by excessive phlegm (mucus).

Patients must be instructed to discontinue use and seek medical advice 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 further evaluation.

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 for urgent guidance.

Side Effects

Patients should be aware of the following adverse reactions associated with the use of this medication. It is contraindicated for use in children under 12 years of age. Prior to use, patients should consult a healthcare professional if they have a persistent or chronic cough, such as that which occurs with smoking, asthma, chronic bronchitis, or emphysema, or if the cough is accompanied by excessive phlegm (mucus).

Patients are advised to discontinue use and seek medical advice 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.

Drug Interactions

No specific drug interactions have been identified in the available data. Additionally, there are no reported interactions between the drug and laboratory tests. Therefore, no dosage adjustments or monitoring recommendations are necessary based on the current information.

Packaging & NDC

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

Packaging configurations for Mucus Relief.
Details

Pediatric Use

Pediatric patients under 12 years of age should not be administered this medication. Safety and efficacy have not been established in this population, and use is contraindicated. Healthcare professionals are advised to consider alternative treatments for pediatric patients within this age range.

Geriatric Use

There is no specific information available 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. It is advisable to monitor these patients closely for any adverse effects or changes in efficacy.

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 the safety of both the mother and the developing fetus or nursing infant.

Lactation

Lactating mothers are advised to consult a health professional prior to using this medication. There is no specific data available regarding the excretion of this medication in 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. Regular monitoring of renal function may be advisable in these patients to ensure safety and efficacy.

Hepatic Impairment

There is no information available regarding the use of this medication in patients with hepatic impairment. Consequently, there are no dosage adjustments, special monitoring requirements, or precautions specified for individuals with compromised liver function. Healthcare professionals should exercise clinical judgment when considering the use of this medication in patients with liver problems, as the absence of data does not preclude the need for careful evaluation and monitoring based on individual patient circumstances.

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 symptoms may vary depending on the substance involved. Therefore, a thorough assessment of the patient's condition is essential to determine the appropriate course of action.

Management procedures may include supportive care and symptomatic treatment, tailored to the specific symptoms presented. Continuous monitoring of the patient's vital signs and clinical status is recommended to ensure safety and effectiveness of the treatment provided.

Nonclinical Toxicology

There is currently no available information regarding teratogenic or non-teratogenic effects associated with the compound. Additionally, no data has been provided concerning nonclinical toxicology, including animal pharmacology and toxicology.

Postmarketing Experience

No postmarketing experience details are available in the insert text.

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 medication is not recommended for use in children under 12 years of age.

Patients should be instructed to discontinue use and consult a doctor if their cough persists for more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, as these symptoms may indicate a serious illness.

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. 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 various package configurations, with specific NDC numbers available for identification. It is essential to store the product at a controlled temperature range of 20-25°C (68-77°F) to maintain its integrity and efficacy. Proper storage conditions should be ensured to prevent exposure to extreme temperatures, which may compromise the product's quality.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for Mucus Relief, 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, 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.

Learn more in our Editorial Policy

Last AI update:

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.