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Mucus Relief

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This product has been discontinued

Active ingredient
Guaifenesin 600 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 2019
Label revision date
December 31, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Guaifenesin 600 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 2019
Label revision date
December 31, 2025
Manufacturer
Rite Aid Corporation
Registration number
ANDA207342
NDC root
11822-2252
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 600 mg is an expectorant, which means it helps relieve mucus buildup in your airways. This medication works by loosening phlegm (mucus) and thinning bronchial secretions, making it easier for you to cough up bothersome mucus and relieve chest congestion. It is designed for extended-release, providing relief for up to 12 hours.

You may find Guaifenesin helpful if you're dealing with a cough that is not productive, as it can make your coughs more effective by clearing out mucus from your bronchial passageways. This product is similar to the active ingredient found in Mucinex®, but it is not manufactured by the same company.

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. If you're experiencing chest congestion, this medication can also provide relief by thinning and loosening mucus, allowing for easier breathing.

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 effectiveness. 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 occurs with symptoms like fever, rash, or a persistent headache, as these 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 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 fever, rash, or a 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 a 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 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

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. As you age, your body may process medications differently, which can affect how well they work and the potential for side effects.

If you or a loved one is considering this medication, it’s wise to discuss it with a healthcare provider. They can help determine if any adjustments are needed based on individual health conditions and ensure that the treatment is safe and effective for older adults. Always prioritize open communication with your healthcare team about any concerns or questions you may have.

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 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 monitor your kidney function and make any necessary adjustments to your treatment plan.

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 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 feel free to ask questions and share your complete list of medications and any lab tests you may be undergoing. This way, you can receive the best possible care tailored to your needs.

Storage and Handling

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

When handling the product, be sure to do so with clean hands and in a clean environment to avoid contamination. Always follow any specific disposal instructions provided to ensure safe and responsible disposal.

Additional Information

You should take this medication orally. For adults and children aged 12 years and older, the recommended dosage is 1 or 2 tablets every 12 hours, but do not exceed 4 tablets in a 24-hour period. If you are caring for a child under 12 years old, do not use this medication for them. Always follow the dosage instructions to ensure safe and effective use.

FAQ

What is GUAIFENESIN 600 MG used for?

GUAIFENESIN 600 MG is an expectorant that helps loosen phlegm (mucus) and thin bronchial secretions, making coughs more productive and relieving chest congestion.

Who should not use GUAIFENESIN 600 MG?

Do not use GUAIFENESIN 600 MG for children under 12 years of age.

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.

How should I take GUAIFENESIN 600 MG?

Take GUAIFENESIN 600 MG with a full glass of water and do not crush, chew, or break the tablet.

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

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

Is it safe to use GUAIFENESIN 600 MG during pregnancy or breastfeeding?

If you are pregnant or breastfeeding, ask a health professional before using GUAIFENESIN 600 MG.

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.

Where can I find more information about GUAIFENESIN 600 MG?

For complete warnings and product information, keep the outer carton and visit www.riteaid.com.

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 drug.

Uses and Indications

This drug is indicated for the relief of chest congestion and the facilitation of productive coughs by loosening phlegm (mucus) and thinning bronchial secretions. It aids in clearing the bronchial passageways of bothersome mucus, thereby enhancing respiratory function.

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

Dosage and Administration

Patients should take the tablets with a full glass of water. It is important to note that the tablets must not be crushed, chewed, or broken prior to administration. 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. The total daily dosage should not exceed 4 tablets within a 24-hour period.

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

Contraindications

Use of this product is contraindicated in children under 12 years of age.

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 experiencing a cough 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, immediate medical assistance should be sought, or the Poison Control Center should be contacted at 1-800-222-1222. Prompt action is essential to ensure patient safety and appropriate management of overdose situations.

Side Effects

Patients should be aware of the following adverse reactions associated with the use of this medication. It is contraindicated for 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 with a cough accompanied by excessive phlegm (mucus) should seek medical advice prior to use.

Patients are instructed to discontinue use and consult a doctor if their cough lasts more than 7 days, returns, or is accompanied by fever, rash, or persistent headache, as these symptoms may indicate a serious underlying condition.

Drug Interactions

There are currently no documented drug interactions associated with this medication. Additionally, there are no known 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. Safety and efficacy have not been established in this population, and use is contraindicated for children in this age group.

Geriatric Use

There is no specific information 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, 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 healthcare professional prior to using this medication. There is no specific data available 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 individuals with reduced kidney function, as the absence of detailed guidance necessitates careful clinical judgment. Regular monitoring of renal function may be advisable in these patients to ensure safety and efficacy.

Hepatic Impairment

Patients with hepatic impairment have not been specifically studied in relation to 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 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 taken. 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 additional information regarding non-teratogenic effects is available. Furthermore, there are no details provided concerning nonclinical toxicology or animal pharmacology and toxicology in the insert.

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, such as that 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 20º to 25ºC (68º to 77ºF) to maintain its efficacy and stability. 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. 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. It is contraindicated for use in children under 12 years of age.

There is no additional information 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.