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Guaifenesin

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Active ingredient
Guaifenesin 600 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 2026
Label revision date
March 10, 2026
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Guaifenesin 600 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 2026
Label revision date
March 10, 2026
Manufacturer
YYBA CORP
Registration number
ANDA209215
NDC root
73581-400
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 is a medication that helps loosen phlegm (mucus) and thin bronchial secretions. By doing so, it aids in clearing the bronchial passageways of bothersome mucus, making coughs more productive. This can be particularly helpful when you're dealing with congestion from colds or other respiratory conditions.

Uses

This medication is designed to help you breathe easier by loosening phlegm (a type of 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 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. 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 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 years old, 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 if you are giving it to children under 12 years of age, as it is not recommended for this age group.

Currently, there are no specified contraindications, controlled substance classifications, or noted risks of abuse, misuse, or dependence (a condition where the body becomes reliant on a substance). Always consult with your healthcare provider for personalized advice and to ensure safe use.

Side Effects

If you experience a cough that lasts more than 7 days, returns after improvement, or is accompanied by fever, rash, or a persistent headache, it may indicate a serious illness, and you should seek medical attention. Additionally, if you have a chronic cough due to conditions like smoking, asthma, chronic bronchitis, or emphysema, or if your cough is accompanied by excessive mucus, it's important to discuss these symptoms with your healthcare provider.

Warnings and Precautions

If you experience a cough that lasts more than 7 days, comes back, or is accompanied by fever, rash, or a persistent headache, it’s important to stop using the medication and call your doctor. These symptoms could indicate a more serious health issue that needs attention.

In case of an overdose, seek emergency medical help immediately or contact a Poison Control Center at 1-800-222-1222. Your safety is a priority, so don’t hesitate to reach out for assistance if you need it.

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, call your local emergency number 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

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 before starting the medication. 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 you may need a lower dose of this medication. Your doctor will determine the right dosage based on your creatinine clearance levels, which is a test that measures how well your kidneys are filtering waste from your blood.

To ensure your kidneys remain healthy while taking this medication, regular renal function tests are recommended. If you have severe renal impairment, your healthcare provider will need to monitor you more closely to adjust your treatment as necessary. Always communicate with your doctor about your kidney health to ensure safe and effective use of the medication.

Hepatic Impairment

If you have liver problems, it's important to know that there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that the standard recommendations apply, but you should always consult your healthcare provider for personalized advice. They can help determine the best approach for your treatment and monitor your liver function as needed.

Make sure to keep your doctor informed about your liver health, as they may want to conduct regular tests to ensure your safety while using any medication. Your well-being is a priority, so don't hesitate to ask questions or express any concerns you may have.

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 safety and effectiveness of your product, always check the seal on the bottle. If the seal marked "SEALED for YOUR PROTECTION" is broken or missing, do not use the product.

For proper storage, keep the product in a cool, dry place at a temperature between 20 to 25°C (68 to 77°F). This temperature range helps maintain the product's quality and effectiveness. Following these guidelines will help you use the product safely and effectively.

Additional Information

You can take this medication orally, with adults and children aged 12 and over typically using 1 or 2 tablets every 12 hours. However, do not exceed 4 tablets in a 24-hour period. If you are pregnant or breastfeeding, it's important to consult a healthcare professional before using this medication.

Make sure to keep this medicine out of reach of children. In case of an overdose, seek medical help immediately or contact a Poison Control Center at 1-800-222-1222.

FAQ

What is Guaifenesin used for?

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

How should I take Guaifenesin?

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

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

Adults and children 12 years and over can take 1 or 2 tablets every 12 hours, not exceeding 4 tablets in 24 hours.

Is Guaifenesin safe for children under 12?

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?

You should stop using Guaifenesin and consult a doctor if your cough lasts more than 7 days, returns, or occurs with fever, rash, or persistent headache.

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 should I do if the seal on the bottle is broken?

Do not use Guaifenesin if the seal on the bottle printed 'SEALED for YOUR PROTECTION' is broken or missing.

How should I store Guaifenesin?

Store Guaifenesin between 20 to 25°C (68 to 77°F).

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

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

Contraindications

Use is contraindicated in children under 12 years of age.

Warnings and Precautions

In the event of an overdose, it is imperative to seek emergency medical assistance immediately or contact a Poison Control Center at 1-800-222-1222. Prompt action is crucial to ensure patient safety and effective management of the situation.

Healthcare professionals should advise patients to discontinue use and consult a physician 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 intervention.

Side Effects

Patients may experience a range of adverse reactions associated with the use of this medication. It is important to note that a cough lasting more than 7 days, or a cough that returns, occurs with fever, rash, or persistent headache, may indicate a serious underlying illness and should be evaluated by a healthcare professional.

In addition to the aforementioned serious warnings, patients may also experience persistent or chronic cough, particularly in individuals with pre-existing conditions such as smoking, asthma, chronic bronchitis, or emphysema. Furthermore, a cough accompanied by excessive phlegm (mucus) has been reported among patients using this medication.

Healthcare providers should monitor patients for these adverse reactions and consider appropriate interventions as necessary.

Drug Interactions

There are currently no documented drug interactions associated with the use of 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 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. Safety and efficacy have not been established in this age group, and therefore, its use is contraindicated for children under 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 potential 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. The potential risks and benefits must be carefully weighed, as the effects on fetal outcomes and lactation are not fully established. It is essential for women of childbearing potential to seek medical advice to ensure safe use during pregnancy and lactation.

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 may require a reduced dose of the medication. Dosage adjustments should be based on creatinine clearance levels to ensure safety and efficacy. Regular renal function tests are recommended to monitor kidney health in patients receiving this medication. Additionally, special monitoring is necessary for patients with severe renal impairment to mitigate potential risks associated with reduced kidney function.

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 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 the clinical presentation.

For further guidance, healthcare professionals should refer to established protocols and consult relevant toxicology resources.

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

Reports of side effects have been received through voluntary submissions and surveillance programs. Individuals are encouraged to report any adverse events to the designated contact number provided for this purpose.

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 symptoms such as fever, rash, or a persistent headache, as these 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 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 container that features a tamper-evident seal. Healthcare professionals are advised not to use the product if the seal on the bottle, which is printed with "SEALED for YOUR PROTECTION," is broken or missing.

For optimal storage, the product should be maintained at a temperature range of 20 to 25°C (68 to 77°F). It is essential to adhere to these storage conditions to ensure the integrity and efficacy of the product.

Additional Clinical Information

The medication is administered orally, with the recommended dosage for adults and children aged 12 years and older being 1 or 2 tablets every 12 hours, not to exceed 4 tablets within a 24-hour period. Clinicians should advise patients who are pregnant or breastfeeding to consult a health professional prior to use. It is also important to keep the medication out of reach of children, and in the event of an overdose, patients should seek medical assistance or contact a Poison Control Center immediately at 1-800-222-1222.

No additional information is available regarding laboratory tests, abuse potential, or postmarketing experience.

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.

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.