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Mucus Relief

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This product has been discontinued

Active ingredient
Guaifenesin 1200 mg
Other brand names
Dosage form
Tablet
Route
Oral
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2020
Label revision date
December 31, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Guaifenesin 1200 mg
Other brand names
Dosage form
Tablet
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 2020
Label revision date
December 31, 2025
Manufacturer
Rite Aid Corporation
Registration number
ANDA207342
NDC root
11822-7329
Drug Information (PDF)
Prescribing information, PDF file
Packaging Info (2 NDCs)
Packaging & NDC Codes (2)

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 to loosen phlegm (mucus) and thin bronchial secretions. This action makes it easier for you to clear mucus from your airways, making coughs more productive and relieving chest congestion. Guaifenesin is available in a maximum strength formulation and is designed to provide relief for up to 12 hours with its extended-release tablets.

If you're dealing with bothersome mucus, Guaifenesin can be an effective option to help you breathe more easily. It works by thinning and loosening mucus, allowing your body to rid itself of excess mucus in the bronchial passageways.

Uses

If you're dealing with a cough and chest congestion, this medication can be quite helpful. It works by loosening phlegm (a type of mucus) and thinning out bronchial secretions, which makes it easier for you to clear out bothersome mucus from your airways.

By relieving chest congestion, this medication can help you breathe more comfortably. Overall, it makes your coughs more productive, allowing your body to get rid of mucus more effectively.

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 one tablet every 12 hours. However, 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 be aware of specific guidelines when considering this medication. You should not use it for children under 12 years of age, as it may not be safe for them.

Currently, there are no specified contraindications, risks of abuse or misuse, or concerns regarding dependence (which refers to a condition where the body becomes reliant on a substance). Always consult with your healthcare provider if you have any questions or concerns about using this medication.

Side Effects

You should avoid using this medication if you are under 12 years old. If you have a persistent cough due to smoking, asthma, chronic bronchitis, or emphysema, or if your cough is accompanied by excessive mucus, it's important to consult a doctor before using this product.

If your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, you should stop using the medication and seek medical advice, as these symptoms may indicate a more serious condition.

Warnings and Precautions

You should not use this medication if you are under 12 years old. Before using it, consult your doctor if you have a long-lasting cough due to smoking, asthma, chronic bronchitis, or emphysema, or if your cough is producing a lot of mucus.

If your cough lasts more than 7 days, returns, or is accompanied by a fever, rash, or persistent headache, stop taking 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 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 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 should be used if you have renal impairment (kidney issues).

Always consult your healthcare provider for personalized advice and to ensure that any medication you take is safe and appropriate for your health situation. They can help you understand how to manage your treatment effectively while considering 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 should be used if you have hepatic impairment (liver issues).

Always consult your healthcare provider for personalized advice and to ensure that any medication you take is safe and appropriate for your liver health. They can help you understand how to manage your treatment effectively.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. While there are no specific drug interactions or laboratory test interactions noted for this medication, your healthcare provider can help ensure that everything you are taking works well together and is safe for you. Always share your complete list of medications and any recent lab tests to avoid any potential issues. Your health and safety should always come first.

Storage and Handling

To ensure the best quality and safety of your product, store it in a cool, dry place at a temperature between 20º to 25ºC (68º to 77ºF). It's important to keep the outer carton, as it contains essential warnings and product information that you may need to refer to later.

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

Additional Information

You should take this medication orally. For adults and children aged 12 years and older, the recommended dosage is 1 tablet every 12 hours, with a maximum of 2 tablets in a 24-hour period. If you are caring for a child under 12 years of age, do not use this medication for them. Always follow the dosage instructions to ensure safe and effective use.

FAQ

What is GUAIFENESIN used for?

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

How should I take GUAIFENESIN?

You should take 1 tablet every 12 hours with a full glass of water. Do not exceed 2 tablets in 24 hours.

Who should not use GUAIFENESIN?

GUAIFENESIN should not be used by children under 12 years of age.

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

If your cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache, stop use and ask a doctor, as these could be signs of a serious illness.

What should I do in case of an overdose?

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

Can I take GUAIFENESIN if I am pregnant or breastfeeding?

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

What are the storage instructions for GUAIFENESIN?

Store GUAIFENESIN between 20º to 25ºC (68º to 77ºF) and keep the outer carton for complete warnings and product information.

Is GUAIFENESIN the same as Maximum Strength Mucinex®?

GUAIFENESIN contains the same active ingredient as Maximum Strength Mucinex®, but it is not manufactured or distributed by Reckitt Benckiser LLC.

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

No description information is available for the specified drug.

Uses and Indications

This drug is indicated for the relief of chest congestion associated with respiratory conditions. It helps to loosen phlegm (mucus) and thin bronchial secretions, facilitating the clearance of mucus from the bronchial passageways. By doing so, it enhances the productivity of coughs, making it easier for patients to expel bothersome mucus.

Limitations of Use: This drug is intended for use in patients experiencing symptoms of chest congestion and is not indicated for other conditions outside of this scope.

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 tablet every 12 hours. The maximum allowable dosage is 2 tablets within a 24-hour period.

This product 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. No other contraindications have been specified.

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 those associated with smoking, asthma, chronic bronchitis, or emphysema. Additionally, patients with a cough that is accompanied by excessive phlegm (mucus) should seek medical advice before initiating treatment.

Patients are instructed to discontinue use and contact their healthcare provider if the 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, it is imperative to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222. Prompt action is essential to ensure patient safety and appropriate management of the situation.

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.

Before using this medication, patients are advised to consult a healthcare professional if they have a persistent or chronic cough, such as that which occurs with smoking, asthma, chronic bronchitis, or emphysema. Additionally, individuals experiencing a cough accompanied by excessive phlegm (mucus) should seek medical advice prior to use.

Patients are instructed to discontinue use and consult a healthcare provider 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 serious underlying condition that requires medical evaluation.

Drug Interactions

There are currently no documented drug interactions associated with this medication. Additionally, there is no information available regarding interactions with laboratory tests. As such, no specific recommendations for dosage adjustments or monitoring are warranted at this time.

Packaging & NDC

Below are the non-prescription pack sizes of Mucus Relief (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. 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. It is important to assess the potential risks and benefits associated with its 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 drug insert regarding dosage adjustments, special monitoring, or safety considerations. Therefore, healthcare professionals should exercise caution when prescribing this medication to patients with reduced kidney function, as the absence of detailed guidance necessitates careful clinical judgment and monitoring of these patients.

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. The national Poison Control Center can be reached at 1-800-222-1222.

Healthcare professionals should be aware that timely intervention is crucial in managing overdose situations. Symptoms of overdose may vary depending on the substance involved, and it is essential to monitor the patient closely for any signs of adverse reactions.

Management of an overdose typically involves supportive care and symptomatic treatment. Healthcare providers should ensure that the patient is stabilized and may need to implement specific protocols based on the substance ingested. Continuous assessment and monitoring of vital signs are recommended to guide further treatment decisions.

In summary, prompt action and appropriate medical intervention are vital in the management of overdose cases to mitigate potential complications and ensure patient safety.

Nonclinical Toxicology

If pregnant or breastfeeding, it is advised to consult a health professional prior to use. No specific non-teratogenic effects have been identified 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

No postmarketing experience details are available in the insert.

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 underlying condition.

Additionally, healthcare providers should encourage patients to consult with a doctor prior to using this medication if they have a persistent or chronic cough associated with smoking, asthma, chronic bronchitis, or emphysema, or 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 shows any signs of tampering.

For optimal storage, the product should be maintained at a temperature range of 20º to 25ºC (68º to 77ºF). It is recommended to keep the outer carton to ensure access to complete warnings and product information.

Additional Clinical Information

The medication is administered orally. For adults and children aged 12 years and older, the recommended dosage is one tablet every 12 hours, with a maximum of two tablets in a 24-hour period. It is not recommended for use in 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.