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Mucus Relief

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Active ingredient
Guaifenesin 400 mg
Other brand names
Drug class
Expectorant
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 2024
Label revision date
December 26, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Guaifenesin 400 mg
Other brand names
Drug class
Expectorant
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 2024
Label revision date
December 26, 2025
Manufacturer
Pioneer Life Sciences, LLC
Registration number
M012
NDC root
72090-009
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

GC Mucus Relief RS is a medication designed to help you manage mucus in your airways. It works by loosening phlegm (mucus) and thinning bronchial secretions, which can make it easier for you to clear your airways and have more productive coughs. This can be particularly helpful if you're dealing with congestion or discomfort caused by excess mucus.

Uses

If you're dealing with a cough that produces mucus, this medication can help. It works by loosening phlegm (a type of mucus) and thinning out bronchial secretions. This action makes it easier for your body to clear out the mucus from your airways, leading to more productive coughs. By clearing the bronchial passageways, you may find relief from the discomfort associated with congestion.

Dosage and Administration

If you are an adult or a child aged 12 years and older, you should take 1 tablet every 4 hours as needed while your symptoms continue. It's important to drink a full glass of water with each tablet to help it work effectively. However, make sure not to exceed 6 doses in a 24-hour period to avoid any potential side effects.

For children under 12 years of age, this medication is not recommended, so please do not use it for younger children. Always follow these guidelines to ensure safe and effective use of the medication.

What to Avoid

There are no specific contraindications, controlled substance classifications, or risks of abuse, misuse, or dependence associated with this medication. Additionally, there are no particular instructions indicating that you should not take or use this medication. Always consult with your healthcare provider for personalized advice and to ensure this medication is appropriate for you.

Side Effects

It's important to be aware of potential side effects when using this medication. You should consult your doctor before using it if you have a persistent or chronic cough, especially if it is related to smoking, asthma, chronic bronchitis, or emphysema. Additionally, if your cough is accompanied by excessive phlegm (mucus), it's advisable to seek medical advice before proceeding with treatment.

Warnings and Precautions

It's important to be cautious when using this medication. Before you start, consult your doctor if you have a persistent or chronic cough, especially if it's related to smoking, asthma, chronic bronchitis, or emphysema. Additionally, if your cough is producing a lot of phlegm (mucus), you should also seek medical advice.

In the event of an overdose, it's crucial to get emergency medical help right away or contact a Poison Control Center at 1-800-222-1222. There are no specific laboratory tests required for monitoring while using this medication, but staying informed and cautious is key to your safety.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, it's important to be aware of the general signs of an overdose, which can include symptoms like extreme drowsiness, confusion, or difficulty breathing. If you suspect an overdose, it is crucial to seek immediate medical help.

In case of an emergency, you should call your local emergency number or go to the nearest hospital. Always keep your medications in a safe place and follow the prescribed dosage to prevent any potential risks. If you have any concerns or questions about your medication, don’t hesitate to reach out to your healthcare provider for guidance.

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 professional 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 healthcare provider regarding your breastfeeding journey.

Pediatric Use

It's important to be cautious when considering this medication for children. If your child is under 12 years old, you should not use this medication. For those aged 12 and older, the recommended dosage is one tablet every four hours, taken with a full glass of water, as long as symptoms continue. However, make sure not to exceed six doses in a 24-hour period.

Always keep this medication out of reach of younger children. In the event of an overdose, it's crucial to seek medical help right away or contact a Poison Control Center at 1-800-222-1222. Your child's safety is the top priority, so please follow these guidelines carefully.

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 your medication dosage may need to be adjusted. Regular monitoring of your kidney function tests is essential to ensure your safety and the effectiveness of your treatment. If your creatinine clearance (a measure of how well your kidneys are filtering waste) falls below a certain level, your doctor may recommend a reduced dose of your medication. Additionally, if you have severe renal impairment, special monitoring will be necessary to manage your health effectively. Always discuss any concerns with your healthcare provider to ensure you receive the best care tailored to your needs.

Hepatic Impairment

If you have liver problems, it's important to know that the information provided does not include specific guidelines for dosage adjustments, special monitoring, or precautions related to your condition. This means that there are no tailored recommendations for how the medication may affect you differently due to your liver health.

Always consult your healthcare provider for personalized advice and to ensure that any treatment plan is safe and effective for your specific situation. They can help determine the best approach based on your liver function and overall health.

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 performance of your product, store it at a temperature of 25°C (77°F), allowing for brief fluctuations between 15°-30°C (59°-86°F). It's important to keep the product in a dry location and avoid exposing it to heat, as this can affect its effectiveness.

When handling the product, always do so with care to maintain its integrity. Following these storage and handling guidelines will help ensure that you use the product safely and effectively.

Additional Information

No further information is available.

FAQ

What is GC Mucus Relief RS used for?

GC Mucus Relief RS helps loosen phlegm (mucus) and thin bronchial secretions, making coughs more productive by clearing the bronchial passageways.

Who can take GC Mucus Relief RS?

Adults and children 12 years and older can take 1 tablet every 4 hours with a full glass of water while symptoms persist. Children under 12 years should not use it.

What should I do in case of an overdose?

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

Are there any warnings before using this medication?

You should ask a doctor before use if you have a persistent or chronic cough, such as from smoking, asthma, chronic bronchitis, or emphysema, or if your cough is accompanied by too much phlegm.

What should I do if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, ask a healthcare professional before using GC Mucus Relief RS.

How should I store GC Mucus Relief RS?

Store GC Mucus Relief RS at 25°C (77°F), with excursions between 15°-30°C (59°-86°F), in a dry place and away from heat.

Do patients with kidney problems need to take special precautions?

Yes, patients with renal impairment may require dosage adjustments and should have their renal function monitored regularly.

Packaging Info

Below are the non-prescription pack sizes of Mucus Relief (guaifenesin 400 mg). 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 management of conditions associated with excessive mucus production in the respiratory tract. It helps to loosen phlegm (mucus) and thin bronchial secretions, facilitating the clearance of mucus from the bronchial passageways. By enhancing mucociliary clearance, this medication makes coughs more productive, thereby alleviating symptoms associated with respiratory conditions characterized by mucus accumulation.

Dosage and Administration

Adults and children 12 years and older are instructed to take 1 tablet every 4 hours as needed while symptoms persist. It is essential to administer the tablet with a full glass of water. The maximum allowable dosage is 6 tablets within a 24-hour period.

For children under 12 years of age, the use of this medication is not recommended.

Contraindications

There are no specified contraindications for the use of this product. No conditions or situations have been identified that would warrant avoidance of use.

Warnings and Precautions

Healthcare professionals should be aware of the following warnings and precautions associated with the use of this medication.

Patients should be advised to consult a healthcare provider prior to use if they have a persistent or chronic cough, particularly if it is associated with smoking, asthma, chronic bronchitis, or emphysema. Additionally, caution is warranted if the cough is accompanied by excessive phlegm (mucus), as this may indicate an underlying condition that requires further evaluation.

In the event of an overdose, it is imperative to seek emergency medical assistance or contact a Poison Control Center immediately at 1-800-222-1222. Prompt action is essential to ensure patient safety and mitigate potential adverse effects.

Currently, there are no specific laboratory tests recommended for monitoring during the use of this medication. However, healthcare professionals should remain vigilant and assess the patient's overall condition regularly.

Side Effects

Patients should be advised to consult a healthcare professional prior to using this medication if they have a persistent or chronic cough, which may occur in conditions such as smoking, asthma, chronic bronchitis, or emphysema. Additionally, if the cough is accompanied by excessive phlegm (mucus), it is important to seek medical advice before use.

No specific adverse reactions have been detailed; however, the warnings indicate the necessity for caution in certain patient populations.

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 400 mg). 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 as needed, with a full glass of water, while symptoms persist. The maximum allowable dosage is 6 tablets within a 24-hour period.

It is crucial to keep this medication out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or the Poison Control Center (1-800-222-1222) should be contacted.

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. Monitoring for potential adverse effects and therapeutic efficacy is recommended in 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 healthcare 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 may require dosage adjustments to ensure safety and efficacy. It is essential to monitor renal function tests regularly in patients with kidney problems to assess their condition accurately. For patients with a creatinine clearance less than a specified threshold, a reduced dose should be considered to mitigate the risk of adverse effects. Additionally, special monitoring may be necessary for patients with severe renal impairment to ensure appropriate management of their treatment.

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

There is currently no specific information available regarding overdosage for this medication. Healthcare professionals are advised to monitor patients closely for any signs of adverse effects or symptoms that may arise from excessive dosing.

In the event of suspected overdosage, it is recommended that healthcare providers initiate supportive care and symptomatic treatment as necessary. Patients should be evaluated for potential complications, and appropriate interventions should be implemented based on clinical judgment.

For further guidance, healthcare professionals may refer to established protocols for managing drug overdosage or consult a poison control center.

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 use of the compound in these contexts.

Postmarketing Experience

No postmarketing experience details are available in the insert.

Patient Counseling

Healthcare providers should advise patients to keep the medication out of reach of children to prevent accidental ingestion. It is crucial to emphasize the importance of safety in the home environment, particularly for households with young children.

In the event of an overdose, healthcare providers should instruct patients to seek medical help immediately or contact a Poison Control Center at 1-800-222-1222. Patients should be made aware of the potential seriousness of an overdose and the importance of prompt action.

Storage and Handling

The product is supplied in a configuration that includes specific NDC numbers, which are essential for identification and inventory management. It is recommended to store the product at a controlled room temperature of 25°C (77°F), with permissible excursions between 15°C and 30°C (59°F to 86°F).

To ensure the integrity of the product, it should be kept in a dry place and protected from exposure to heat. Proper storage conditions are crucial for maintaining the product's efficacy and safety.

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.