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Mucus Relief

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This product has been discontinued

Active ingredient
Guaifenesin 400 mg
Other brand names
Dosage form
Tablet, Film Coated
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2023
Label revision date
July 18, 2025
Active ingredient
Guaifenesin 400 mg
Other brand names
Dosage form
Tablet, Film Coated
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2023
Label revision date
July 18, 2025
Manufacturer
Chain Drug Consortium
Registration number
M012
NDC root
68016-545

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

Drug Overview

Guaifenesin is a medication that acts as an expectorant, helping to relieve chest congestion. It comes in a 400 mg immediate release formulation and works by thinning and loosening mucus in the airways. This makes it easier for you to cough up bothersome mucus, leading to more productive coughs and clearer breathing.

If you're dealing with congestion, Guaifenesin can help make your symptoms more manageable by clearing out mucus from your bronchial passageways. This can provide relief and improve your overall comfort when you're feeling under the weather.

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, make sure to swallow it with a full glass of water. For adults and children aged 12 years and older, the recommended dosage is one tablet every four hours. However, you should not take more than six tablets in a 24-hour period to avoid potential side effects.

If you have children under 12 years old, it's important to note that this medication is not suitable for them, so please do not use it for that age group. Always follow these guidelines to ensure safe and effective use of the medication.

What to Avoid

It's important to be aware of certain guidelines when using this medication. If your cough lasts more than 7 days, keeps coming back, or is accompanied by a fever, rash, or a persistent headache, you should stop using the medication and consult your doctor. These symptoms could indicate a more serious health issue that needs attention.

Currently, there are no specific contraindications, controlled substance classifications, or concerns regarding abuse, misuse, or dependence associated with this medication. Always prioritize your health and seek medical advice if you have any concerns.

Side Effects

If you experience a cough that lasts more than 7 days, keeps coming back, or is accompanied by a fever, rash, or a persistent headache, it's important to seek medical attention, as these could be signs of a serious condition. Additionally, if your cough is accompanied by excessive mucus or is chronic due to smoking, asthma, chronic bronchitis, or emphysema, consult your doctor before using this medication.

In the event of an overdose, please get medical help immediately or contact a Poison Control Center. Always prioritize your health and safety by being aware of these potential side effects.

Warnings and Precautions

Before using this medication, it's important to consult your doctor if you have a cough that produces a lot of mucus or if you have a persistent cough due to smoking, asthma, chronic bronchitis, or emphysema. These conditions may require special attention.

You should stop using the medication and contact your doctor if your cough lasts more than 7 days, comes back frequently, or is accompanied by a fever, rash, or a persistent headache, as these could indicate a more serious health issue. In case of an overdose, seek emergency medical help or contact a Poison Control Center immediately.

If you are pregnant or breastfeeding, please consult a healthcare professional before using this medication. Always keep it out of reach of children to ensure their safety.

Overdose

If you suspect an overdose, it’s crucial to seek medical help immediately or contact a Poison Control Center. Signs of an overdose can vary, but they may include unusual symptoms that are more severe than typical side effects.

Always err on the side of caution—if you or someone else is experiencing concerning symptoms after taking medication, don’t hesitate to reach out for professional assistance. 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

If you are considering this medication for your child, it's important to know that it should not be used in children under 12 years old. For those aged 12 and older, the recommended dosage is one tablet every four hours, but be sure not to exceed six tablets in a 24-hour period. Always follow these guidelines to ensure your child's safety and well-being.

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 wise to discuss any potential risks or benefits with your healthcare provider. They can help determine the best approach based on individual health needs and any other medications being taken.

Always keep in mind that older adults may have different responses to medications, so regular check-ins with your doctor can ensure safety and effectiveness.

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 plan is safe and effective for your specific situation. They can help monitor your kidney health and make any necessary adjustments to your medications.

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 if you have hepatic impairment (liver issues).

Always consult your healthcare provider for personalized advice and to discuss any concerns regarding your liver health and how it may relate to your treatment. They can help ensure that your medication is safe and effective for you.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. In this case, there are no known drug interactions or laboratory test interactions associated with the medication. However, every individual is different, and your healthcare provider can help ensure that your treatment is safe and effective for you. Always feel free to ask questions and share your complete list of medications and any tests you may be undergoing.

Storage and Handling

To ensure the best performance of your product, store it at room temperature, specifically at 25°C (77°F). It can safely be kept within a range of 15°-30°C (59°-86°F) for short periods. Always check the end flap of the packaging for the expiration date and lot number, as this information is crucial for your safety and the product's effectiveness.

When handling the product, make sure to do so in a clean environment to maintain its integrity. Proper storage and careful handling will help you get the most out of your device. If you have any questions about disposal or specific usage instructions, please refer to the accompanying materials or consult a healthcare professional.

Additional Information

You should take this medication orally. For adults and children aged 12 years and older, the recommended dose is 1 tablet every 4 hours, but do not exceed 6 tablets in a 24-hour period. If you are caring for children under 12 years old, do not use this medication for them. Always follow the dosing instructions to ensure safe and effective use.

FAQ

What is GUAIFENESIN used for?

GUAIFENESIN is an expectorant that helps relieve chest congestion by thinning and loosening mucus, making coughs more productive.

How should I take GUAIFENESIN?

You should take 1 tablet every 4 hours with a full glass of water. Do not exceed 6 tablets in 24 hours.

Who should not use GUAIFENESIN?

GUAIFENESIN is not recommended for children under 12 years of age.

What should I do if my cough persists?

Stop use and ask a doctor if your cough persists for more than 7 days, tends to recur, or is accompanied by a fever, rash, or persistent headache.

Are there any warnings associated with GUAIFENESIN?

Yes, consult a doctor before use if you have a cough with too much phlegm, or if you have a persistent cough due to smoking, asthma, chronic bronchitis, or emphysema.

What should I do in case of an overdose?

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

Is GUAIFENESIN safe to use during pregnancy or breastfeeding?

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

Where is GUAIFENESIN distributed?

GUAIFENESIN is distributed by Pharmacy Value Alliance, LLC, located in Wayne, PA.

What should I check before using GUAIFENESIN?

Ensure the safety seal under the cap is intact before use, as it is tamper evident.

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 formulated to relieve chest congestion by thinning and loosening mucus. Each tablet contains 400 mg of guaifenesin, and the product is supplied in a bottle containing 50 tablets.

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

Patients should take the medication with a full glass of water to ensure proper absorption.

For adults and children aged 12 years and older, the recommended dosage is 1 tablet every 4 hours as needed. It is important not to exceed a total of 6 tablets within a 24-hour period to avoid potential overdose.

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

Contraindications

There are no specific contraindications identified for this product. However, it is advised to discontinue use and consult a healthcare professional if cough persists for more than 7 days, recurs, or is accompanied by fever, rash, or persistent headache, as these symptoms may indicate a serious underlying condition.

Warnings and Precautions

It is essential for healthcare professionals to be aware of the following warnings and precautions associated with the use of this medication.

Patients should be advised to consult a physician prior to use if they present with a cough that is accompanied by excessive phlegm (mucus) or if they have a persistent or chronic cough, which may be indicative of underlying conditions such as smoking, asthma, chronic bronchitis, or emphysema.

In instances where a cough persists for more than 7 days, recurs, or is accompanied by additional symptoms such as fever, rash, or a persistent headache, patients should discontinue use and seek medical advice. These symptoms may suggest a more serious underlying condition that requires further evaluation.

In the event of an overdose, it is critical to obtain emergency medical assistance immediately or contact a Poison Control Center.

For general precautions, it is advised that individuals who are pregnant or breastfeeding consult a healthcare professional before using this medication to ensure safety for both the mother and child.

Lastly, it is imperative to keep this medication out of the reach of children to prevent accidental ingestion or misuse.

Side Effects

Patients may experience a range of adverse reactions associated with the use of this medication. It is important to monitor for serious symptoms, particularly if a cough persists for more than 7 days, tends to recur, or is accompanied by fever, rash, or persistent headache, as these may indicate a serious underlying condition.

Patients should consult a healthcare professional prior to use if they have a cough accompanied by excessive phlegm (mucus) or if they suffer from persistent or chronic coughs related to smoking, asthma, chronic bronchitis, or emphysema.

In the event of an overdose, it is crucial for patients to seek immediate medical assistance or contact a Poison Control Center. This proactive approach is essential to ensure safety and address any potential complications that may arise from excessive intake of the medication.

Drug Interactions

No drug interactions or drug and laboratory test interactions have been identified in the available data. Therefore, no specific recommendations for dosage adjustments or monitoring are necessary at this time.

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 use this medication. For adolescents aged 12 years and older, the recommended dosage is 1 tablet every 4 hours, with a maximum of 6 tablets in a 24-hour period. Caution is advised to ensure adherence to the dosing guidelines to prevent potential overdose.

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 on 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 event of an overdose, it is imperative to seek immediate medical assistance or contact a Poison Control Center without delay. Prompt intervention is crucial to mitigate potential adverse effects associated with the overdose.

Healthcare professionals should be vigilant in monitoring for symptoms that may arise from an overdose. While specific symptoms are not detailed in the provided information, it is essential to be aware that they can vary based on the substance involved and the individual patient’s response.

Management of an overdose typically involves supportive care and symptomatic treatment. The healthcare provider should assess the patient's condition and implement appropriate measures based on the severity of the overdose and the symptoms presented. Continuous monitoring and evaluation are recommended to ensure patient safety and effective management of the situation.

Nonclinical Toxicology

No teratogenic or non-teratogenic effects have been reported in the available nonclinical studies. Additionally, there is no information regarding animal pharmacology and toxicology. The absence of data limits the assessment of potential risks associated with the compound in these areas.

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 in the event of an overdose. It is important for patients to be aware of the signs that warrant discontinuation of the medication; they should be instructed to stop use and consult a doctor if their cough persists for more than 7 days, recurs, or is accompanied by symptoms such as fever, rash, or a persistent headache, as these may indicate a serious underlying condition.

Additionally, healthcare providers should encourage patients to consult with their doctor prior to using the medication if they have a cough that is accompanied by excessive phlegm (mucus) or if they experience a persistent or chronic cough, particularly in cases related to smoking, asthma, chronic bronchitis, or emphysema. This precaution is essential to ensure the safe and effective use of the medication.

Storage and Handling

The product is supplied in configurations that include specific NDC numbers, which can be found on the packaging. It should be stored at a controlled room temperature of 25°C (77°F), with permissible excursions between 15°C and 30°C (59°F to 86°F).

Healthcare professionals are advised to check the end flap of the packaging for the expiration date and lot number to ensure proper inventory management and product safety.

Additional Clinical Information

The medication is administered orally. For adults and children aged 12 years and older, the recommended dosage is one tablet every four hours, with a maximum of six tablets in a 24-hour period. Use is not recommended for children under 12 years of age. No additional information is available regarding laboratory tests, abuse potential, patient counseling, or postmarketing experience.

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.