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Mucus Relief

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Active ingredient
Guaifenesin 600 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 2023
Label revision date
March 17, 2025
Active ingredient
Guaifenesin 600 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 2023
Label revision date
March 17, 2025
Manufacturer
H E B
Registration number
ANDA207342
NDC root
37808-830

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Drug Overview

Guaifenesin is an expectorant medication that helps relieve chest congestion by loosening phlegm (mucus) and thinning bronchial secretions. This action makes coughs more productive, allowing you to clear bothersome mucus from your airways more effectively.

Typically available in extended-release tablet form, Guaifenesin is comparable to the active ingredient found in Mucinex®. It is designed to help you breathe easier when dealing with congestion caused by colds or other respiratory conditions.

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.

In addition to easing your cough, this medication also provides relief from chest congestion, allowing you to feel more comfortable and breathe more freely. If you're dealing with thick mucus, this treatment can effectively thin and loosen it, helping you to manage your symptoms better.

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

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 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. Additionally, if you are pregnant or breastfeeding, please consult a healthcare professional before use. Always keep this medication out of reach of children, and in case of an overdose, contact medical help or a Poison Control Center immediately at 1-800-222-1222.

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 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

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 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 is safe and effective for your specific condition. They can help you understand any necessary precautions or adjustments based on 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 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 you receive the safest and most effective care.

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 lab tests you undergo, as this helps in managing your health effectively.

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 sterile field (a clean area free from germs) to prevent contamination. Always follow any specific disposal instructions provided to ensure safe and responsible disposal of any components.

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 used for?

Guaifenesin is used to help loosen phlegm (mucus) and thin bronchial secretions, making coughs more productive and relieving chest congestion.

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 or 2 tablets every 12 hours, not exceeding 4 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 using Guaifenesin and consult a doctor.

Can I use Guaifenesin if I am pregnant or breastfeeding?

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

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.

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 a cough with excessive phlegm.

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 as extended-release tablets, each containing 600 mg of the active ingredient. This product is not manufactured or distributed by Reckitt Benckiser LLC, the distributor of Mucinex®. The tablets are designed to provide prolonged therapeutic effects. The product features a tamper-evident safety seal; it should not be used if the seal under the cap is broken or missing. For complete warnings and product information, the outer carton should be retained. This formulation is produced with pride and care for H-E-B® in San Antonio, TX 78204.

Uses and Indications

This drug is indicated for the relief of chest congestion by helping to loosen phlegm (mucus) and thin bronchial secretions. It facilitates the clearance of bothersome mucus from the bronchial passageways, thereby making coughs more productive.

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 ingestion. This medication can be administered without regard for 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 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 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, 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 appropriate management of the situation.

Side Effects

Patients should be aware of several important warnings associated with the use of this medication. It is contraindicated for children under 12 years of age. Prior to use, patients should consult a healthcare professional if they have a persistent or chronic cough, such as that which occurs with smoking, asthma, chronic bronchitis, or emphysema, or if the cough is accompanied by excessive phlegm (mucus).

Patients are advised 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 serious underlying condition.

For pregnant or breastfeeding individuals, it is recommended to consult a health professional before using this medication. Additionally, it is crucial to keep this product out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or contact with a Poison Control Center should be made at 1-800-222-1222.

Drug Interactions

There are currently no specific drug interactions identified for the medication. Additionally, no interactions with laboratory tests have been reported. Therefore, no dosage adjustments or monitoring recommendations are necessary at this time. It is advisable for healthcare professionals to remain vigilant and consult updated resources as new data may emerge.

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

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.

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. The safety of this medication in pregnant women has not been established, and caution is advised to ensure the well-being of both the mother and the fetus.

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 medication 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 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. Healthcare professionals should advise patients or caregivers to call the Poison Control Center at 1-800-222-1222 for guidance.

Prompt intervention is crucial in managing overdose situations, as timely medical help can significantly influence outcomes. Symptoms of overdose may vary depending on the substance involved and the individual’s health status. Therefore, a thorough assessment and monitoring of the patient are essential.

Management procedures should include supportive care and symptomatic treatment as necessary. Healthcare providers are encouraged to follow established protocols for overdose management, which may involve decontamination, administration of antidotes if applicable, and continuous monitoring of vital signs.

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 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 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. 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.