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Mucus Relief

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Active ingredient
Guaifenesin 1200 mg
Other brand names
Drug class
Expectorant
Dosage form
Tablet, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2025
Label revision date
February 12, 2025
Active ingredient
Guaifenesin 1200 mg
Other brand names
Drug class
Expectorant
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 2025
Label revision date
February 12, 2025
Manufacturer
P & L Development, LLC
Registration number
ANDA207342
NDC root
59726-237

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Drug Overview

Guaifenesin is an expectorant, which means it helps relieve chest congestion by loosening phlegm (mucus) and thinning bronchial secretions. This action makes coughs more productive, allowing you to clear mucus from your airways more effectively. Guaifenesin is available in maximum strength extended-release tablets, providing relief for up to 12 hours.

By using Guaifenesin, you can experience relief from bothersome mucus and chest congestion, making it easier to breathe and feel more comfortable.

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 who may be 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 in your stomach. You can take this medication at any time, regardless of your meal schedule.

For adults and children aged 12 years and older, the recommended dose 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, controlled substance classifications, or concerns regarding abuse, misuse, or dependence (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 be aware that this medication is not recommended for children under 12 years of age. 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 your 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. In the event of an overdose, please seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222.

Warnings and Precautions

You should not use this medication if you are under 12 years old. Before taking 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 immediate medical assistance 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 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, it’s important to consult with a healthcare provider for personalized advice. 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 determine the best course of action based on your kidney function and overall 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 may affect you if you have hepatic impairment (issues with liver function).

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 monitor your health effectively and make informed decisions about your care.

Always feel free to ask questions and share all the medications and supplements you are using. This helps to avoid any potential issues and ensures that you receive the best possible treatment tailored to your needs.

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 reference.

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 safety and effectiveness of the product.

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 old, do not use this medication for them. Always follow the dosage instructions to ensure safe and effective use.

FAQ

What is Guaifenesin?

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

What is the maximum strength of Guaifenesin?

The maximum strength of Guaifenesin is 1200 mg, available in extended-release tablets.

How should I take Guaifenesin?

You should take Guaifenesin with a full glass of water and not crush, chew, or break the tablet. Adults and children 12 years and older can take 1 tablet every 12 hours, not exceeding 2 tablets in 24 hours.

Is Guaifenesin safe for children?

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?

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.

Are there any warnings associated with Guaifenesin?

Yes, do not use Guaifenesin for children under 12 years of age, and consult a doctor if you have a persistent cough or cough with too much phlegm.

What should I do in case of an overdose?

In case of overdose, seek medical help or contact a Poison Control Center immediately 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 conditions for Guaifenesin?

Guaifenesin should be stored between 20º to 25ºC (68º to 77ºF).

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 in extended-release tablets, each containing 1200 mg of the active ingredient. This product is designed to provide maximum strength mucus relief, offering 12-hour relief from chest congestion. It functions by thinning and loosening mucus, thereby facilitating easier expectoration. This formulation is comparable to the active ingredient found in Maximum Strength Mucinex®, although it is not manufactured or distributed by Reckitt Benckiser LLC, the distributor of Maximum Strength 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

Patients should take the tablet with a full glass of water. It is important to note that the tablet must not be crushed, chewed, or broken prior to administration. This medication 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 total daily dosage should not exceed 2 tablets within a 24-hour period.

This medication is not recommended 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 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, as these symptoms may indicate a more serious underlying condition.

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.

Side Effects

Patients should be aware of the following adverse reactions associated with the use of this medication.

Warnings: The medication is contraindicated for use in children under 12 years of age. Patients are advised to consult a healthcare professional prior to use 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 before using this product.

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, as these symptoms may indicate a serious underlying condition.

In the event of an overdose, it is critical to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222.

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. There is insufficient data to support its safety and efficacy in this age group. Therefore, healthcare professionals are advised to avoid prescribing this treatment to children younger than 12 years.

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, as well as any available data regarding fetal outcomes and lactation. Healthcare providers can offer guidance tailored to individual circumstances, ensuring the safety of both the patient and the developing fetus or nursing 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 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 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

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. As such, a comprehensive assessment of these aspects cannot be made at this time.

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 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 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 contraindicated for use in children under 12 years of age. No further 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.

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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.