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Guaifenesin

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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 2020
Label revision date
July 1, 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 2020
Label revision date
July 1, 2025
Manufacturer
Advanced Rx LLC
Registration number
ANDA213420
NDC root
80513-413

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Drug Overview

This medication is designed to help loosen phlegm (mucus) and thin bronchial secretions, making it easier for you to clear mucus from your airways. By doing so, it can help make your coughs more productive, allowing you to breathe more comfortably. If you're dealing with congestion or a cough, this drug may assist in alleviating those symptoms by promoting better mucus clearance from your lungs.

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 with absorption. 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, be careful not to exceed 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 certain guidelines when using this medication. You should stop using it and consult your doctor if your cough lasts more than 7 days, returns, or occurs alongside symptoms like fever, rash, or a persistent headache. These could indicate a more serious health issue that needs attention.

Currently, there are no specific contraindications, controlled substance classifications, or noted risks of abuse, misuse, or dependence associated with this medication. However, always prioritize your health and seek medical advice if you have any concerns.

Side Effects

If you are considering using this medication, it's important to be aware of some potential side effects and warnings. You should not use this medication if you are under 12 years of age. Additionally, if your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, you should stop using it and consult a doctor, as these may indicate a more serious condition.

Before using this medication, talk to your doctor if you have a chronic cough related to smoking, asthma, chronic bronchitis, or emphysema, or if your cough comes with excessive mucus. Being informed about these factors can help ensure your safety while using the medication.

Warnings and Precautions

It’s important to know that this medication should not be used for children under 12 years of age. If you or someone you know takes too much of this medication, seek emergency medical help immediately or contact a Poison Control Center at 1-800-222-1222.

You should stop taking this medication and call your doctor if your cough lasts more than 7 days, comes back, or occurs alongside a fever, rash, or persistent headache. These symptoms could indicate a more serious health issue that needs attention.

Overdose

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

In case of an emergency, contact your local poison control center or go to the nearest hospital. Always keep medications out of reach of children 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 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. Since older adults may have different health needs and may be taking multiple medications, it’s always a good idea to consult with a healthcare provider before starting any new medication. They can help ensure that the treatment is safe and appropriate for your individual health situation.

If you or a loved one is an older adult, be sure to discuss any concerns about potential side effects or interactions with other medications you may be taking. Your healthcare provider can provide guidance tailored to your specific needs.

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 plan is safe and effective for your specific situation. They can help monitor your kidney health and make any necessary adjustments to your medications.

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 health conditions you have to receive the best care possible.

Storage and Handling

To ensure the best performance of your product, store it in a cool, dry place at a temperature between 20-25°C (68-77°F). This helps maintain its effectiveness and safety.

When handling the product, please check that the printed seal under the cap is intact. If the seal is missing or damaged, do not use the product, as this could compromise its safety. Always follow these guidelines to ensure proper use and handling.

Additional Information

No further information is available.

FAQ

What does this drug do?

This drug helps loosen phlegm (mucus) and thin bronchial secretions, making coughs more productive by clearing the bronchial passageways.

Who can use this drug?

Adults and children 12 years of age and over can use this drug. It is not recommended for children under 12 years of age.

What is the recommended dosage for adults and children over 12?

The recommended dosage is 1 tablet every 12 hours, with a maximum of 2 tablets in 24 hours.

How should I take this medication?

You should take the tablet with a full glass of water and do not crush, chew, or break it.

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

You should stop use and ask a doctor if your cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache.

Are there any teratogenic effects associated with this drug?

No teratogenic effects are mentioned for this drug.

What should I do if I am pregnant or breastfeeding?

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

What should I do in case of an overdose?

In case of overdose, get medical help or contact a Poison Control Center immediately.

Are there any contraindications for this drug?

There are no contraindications listed for this drug.

How should I store this medication?

Store the drug between 20-25°C (68-77°F) and do not use it if the printed seal under the cap is missing or damaged.

Packaging Info

Below are the non-prescription pack sizes of Guaifenesin. Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Guaifenesin.
Details

Drug Information (PDF)

This file contains official product information for Guaifenesin, 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 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

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 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 maximum allowable dosage is 2 tablets within a 24-hour period.

This medication is not indicated for use in children under 12 years of age.

Contraindications

Use is contraindicated in patients who experience a cough lasting more than 7 days, a recurrent cough, or a cough accompanied by fever, rash, or persistent headache. These symptoms may indicate a serious underlying condition that requires medical evaluation.

Warnings and Precautions

Patients should not use this medication in children under 12 years of age due to safety concerns.

In the event of an overdose, it is imperative to seek emergency medical assistance immediately. Healthcare professionals should advise patients to contact a Poison Control Center at 1-800-222-1222 without delay.

Patients are instructed to discontinue use and consult a healthcare provider if a 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 further evaluation and management.

Side Effects

Patients should be aware that the use of this medication is not recommended for children under 12 years of age.

In clinical practice, it is advised that patients discontinue use and consult a healthcare professional 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, patients should seek medical advice prior to using this medication if they have a persistent or chronic cough associated with smoking, asthma, chronic bronchitis, or emphysema. It is also important to consult a doctor if the cough is accompanied by excessive phlegm (mucus).

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 Guaifenesin. Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Guaifenesin.
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

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 health professional prior to using this medication. There is no specific data available regarding the excretion of this medication in 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 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 unusual symptoms or adverse effects that may arise. In the event of suspected overdosage, it is recommended to initiate supportive care and symptomatic treatment as necessary.

Healthcare providers should consider contacting a poison control center or a medical toxicologist for guidance on management strategies tailored to the specific situation. Continuous assessment of the patient's clinical status is essential to ensure appropriate interventions are implemented promptly.

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 compound in these areas.

Postmarketing Experience

Postmarketing experience has identified the following adverse reactions reported voluntarily or through surveillance programs: nausea, vomiting, and gastrointestinal disturbances. These events have been documented in the context of routine pharmacovigilance activities.

Patient Counseling

Patients should be advised to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222 in the event of an overdose.

Healthcare providers should instruct patients to discontinue use and consult a doctor if their cough persists for more than 7 days, returns after improvement, or is accompanied by symptoms such as fever, rash, or a persistent headache, as these may indicate a serious underlying condition.

It is important for patients to consult with their 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, patients should be encouraged to seek medical advice before using the medication if their cough is accompanied by excessive phlegm (mucus).

Storage and Handling

The product is supplied in a configuration that includes an NDC number, which is essential for identification and inventory management. It is crucial to store the product at a temperature range of 20-25°C (68-77°F) to maintain its efficacy and safety.

Healthcare professionals are advised to inspect the product prior to use; specifically, the printed seal under the cap must be intact. The product should not be used if this seal is missing or damaged, as this may indicate potential tampering or contamination. Proper handling and storage conditions are vital to ensure the product remains safe for patient use.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for Guaifenesin, 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 Guaifenesin, 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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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.