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Tussin

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Active ingredient
Guaifenesin 100 mg/5 mL
Other brand names
Drug class
Expectorant
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2014
Label revision date
December 23, 2025
Active ingredient
Guaifenesin 100 mg/5 mL
Other brand names
Drug class
Expectorant
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2014
Label revision date
December 23, 2025
Manufacturer
Discount Drug Mart
Registration number
M012
NDC root
53943-507

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Drug Overview

Tussin is a cherry-flavored oral solution that contains guaifenesin, a medication designed to help relieve chest congestion. It works by loosening phlegm (mucus) and thinning bronchial secretions, making it easier for you to cough up bothersome mucus and clear your airways. This non-drowsy formula is suitable for individuals aged 12 and over, providing a gentle way to alleviate discomfort associated with congestion.

Uses

This medication is designed to help you breathe easier by loosening phlegm (mucus) and thinning bronchial secretions. By doing so, it makes it easier for you to clear out bothersome mucus from your airways, which can help make your cough more productive.

You can expect this treatment to assist in clearing your respiratory passages, allowing for better airflow and comfort.

Dosage and Administration

When using this medication, it's important to follow the recommended dosage to ensure safety and effectiveness. For adults and children aged 12 years and older, you should take 2 to 4 teaspoonfuls every 4 hours as needed. However, make sure not to exceed 6 doses within a 24-hour period to avoid potential side effects.

If you have children under 12 years old, this medication is not suitable for them, so please do not use it for that age group. Always remember to read the instructions carefully and consult with a healthcare professional if you have any questions or concerns about the proper use of this medication.

What to Avoid

It's important to follow the instructions provided by your healthcare provider when using this medication. You should not take more than the recommended dose, as exceeding this can lead to unwanted effects.

Currently, there are no specific contraindications, controlled substance classifications, or noted risks of abuse, misuse, or dependence associated with this medication. However, always prioritize safety by adhering to the prescribed guidelines.

Side Effects

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 consult your doctor, as these symptoms could indicate a more serious condition. Additionally, if you have a cough with excessive mucus or a chronic cough related to smoking, asthma, chronic bronchitis, or emphysema, you should also seek medical advice before using this product.

Please remember not to use the medication if the printed seal under the cap is torn or missing, as this could compromise its safety.

Warnings and Precautions

You should not use this product if the printed seal under the cap is torn or missing, as this indicates it may not be safe. If you have a cough that produces a lot of mucus, or if your cough is chronic—like those caused by smoking, asthma, chronic bronchitis, or emphysema—please consult your doctor before using this medication.

In the event of an overdose, seek medical help immediately or contact a Poison Control Center. Additionally, stop using the product and call your doctor if your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, as these symptoms could indicate a more serious health issue.

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's important to be cautious when using this medication for children. If your child is under 12 years old, you should not use this product. For those aged 12 and older, the recommended dosage is 2 to 4 teaspoonfuls every 4 hours, but make sure not to exceed 6 doses in a 24-hour period.

Always keep the medication out of reach of children to prevent accidental ingestion. In the event of an overdose, seek medical help immediately or contact a Poison Control Center. Your child's safety is the top priority, so follow these guidelines closely.

Geriatric Use

While there is no specific information about the use of TUSSIN (guaifenesin liquid) in older adults, it's important to approach any medication with caution. Since the drug insert does not mention dosage adjustments or safety concerns for elderly patients, you should consult with a healthcare professional before starting TUSSIN. This is especially crucial if you or your loved one has any existing health conditions or is taking other medications, as these factors can influence how the medication works and its safety. Always prioritize open communication with your healthcare provider to ensure the best care.

Renal Impairment

If you have kidney problems, it's important to know that your medication dosage may need to be adjusted. This is particularly true if your renal function (how well your kidneys are working) is reduced. 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 kidney function) falls below a certain level, a lower dose of your medication may be necessary. Additionally, if you have severe renal impairment, special monitoring will be required to manage your treatment effectively. Always consult your healthcare provider for personalized advice and 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 you may have regarding your liver health and medication use. They can help ensure that you receive the safest and most effective treatment based on your individual needs.

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 feel free to ask questions and share your complete list of medications and any lab tests you may be undergoing. This way, you can receive the best possible care tailored to your needs.

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). It's important not to refrigerate the product, as this can affect its effectiveness. Make sure to keep the original carton, as it contains the full Directions for use, which will guide you on how to use the product safely and effectively.

When using the product, a dosing cup is provided to help you measure the correct amount. Always handle the product with clean hands and follow the instructions carefully to ensure safety and proper use.

Additional Information

No further information is available.

FAQ

What is Tussin?

Tussin is a Guaifenesin Oral Solution, USP that helps loosen phlegm (mucus) and thin bronchial secretions.

What are the main uses of Tussin?

Tussin is used to relieve chest congestion by loosening mucus and making coughs more productive.

Who can use Tussin?

Tussin is intended for adults and children aged 12 and over. Children under 12 years should not use it.

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

The recommended dosage is 2 to 4 teaspoonfuls every 4 hours, not exceeding 6 doses in a 24-hour period.

Are there any warnings associated with Tussin?

Do not use Tussin if the printed seal under the cap is torn or missing. Consult a doctor if you have a cough with too much phlegm or if the cough lasts more than 7 days.

What should I do in case of an overdose?

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

Can I use Tussin if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, consult a health professional before using Tussin.

How should Tussin be stored?

Store Tussin at 20°-25°C (68°-77°F) and do not refrigerate. Keep the carton for full directions.

What flavor is Tussin?

Tussin is available in a cherry-flavored liquid.

Packaging Info

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

Packaging configurations for Tussin.
Details

Drug Information (PDF)

This file contains official product information for Tussin, 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 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 cough and aiding in the removal of bothersome mucus from the airways.

There are no teratogenic or nonteratogenic effects associated with this drug.

Dosage and Administration

The recommended dosage for adults and children aged 12 years and older is 2 to 4 teaspoonfuls administered every 4 hours as needed. It is imperative that no more than 6 doses are taken within a 24-hour period to avoid potential overdose.

For children under 12 years of age, the use of this medication is not recommended. Healthcare professionals should ensure that patients adhere to the specified dosing guidelines to promote safety and efficacy.

Contraindications

There are no specified contraindications for this product. However, it is essential to adhere to the recommended dosage guidelines, as exceeding the directed use may lead to adverse effects.

Warnings and Precautions

The product must not be used if the printed seal under the cap is torn or missing, as this may indicate tampering or contamination.

Healthcare professionals should advise patients to consult a physician if they experience a cough accompanied by excessive phlegm (mucus) or if the cough is chronic, particularly in individuals with a history of smoking, asthma, chronic bronchitis, or emphysema. These conditions may require further evaluation and management.

In the event of an overdose, immediate medical assistance should be sought, or the local Poison Control Center should be contacted without delay to ensure appropriate intervention.

Patients should be instructed to discontinue use and seek medical advice if their cough persists for more than 7 days, recurs, or is associated with fever, rash, or a persistent headache. These symptoms may indicate a more serious underlying condition that necessitates further investigation and treatment.

Side Effects

Patients should be aware of the following warnings and recommendations regarding the use of this product. It is imperative not to use the product if the printed seal under the cap is torn or missing. Additionally, patients are advised to consult a doctor if they experience a cough accompanied by excessive phlegm (mucus) or if the cough is chronic, such as that associated with smoking, asthma, chronic bronchitis, or emphysema.

Patients should 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. These symptoms may indicate a serious underlying condition that requires further evaluation.

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 necessary at this time.

Packaging & NDC

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

Packaging configurations for Tussin.
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 2 to 4 teaspoonfuls every 4 hours, with a maximum of 6 doses in any 24-hour period.

It is essential to keep this medication out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or contact a Poison Control Center without delay.

Geriatric Use

There is no specific information regarding the use of TUSSIN (guaifenesin liquid) in geriatric patients, including dosage adjustments, safety concerns, or special precautions. Healthcare providers should exercise caution when prescribing this medication to elderly patients, as they may have altered pharmacokinetics and increased sensitivity to medications. Monitoring for efficacy and adverse effects is recommended in this population, given the lack of targeted data.

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.

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 may require dosage adjustments due to reduced renal function. It is essential to monitor renal function tests regularly in patients with known kidney problems to ensure appropriate dosing. A reduced dose should be considered for patients with a creatinine clearance below a specified threshold. Additionally, special monitoring is necessary for patients with severe renal impairment to mitigate potential risks associated with their condition.

Hepatic Impairment

Patients with hepatic impairment have not been specifically studied in relation to 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

In the absence of specific overdosage information, it is essential for healthcare professionals to remain vigilant and prepared for potential scenarios involving overdose.

Healthcare providers should be aware that the clinical presentation of an overdose may vary significantly depending on the substance involved and the individual patient’s characteristics. Symptoms may include, but are not limited to, altered mental status, cardiovascular instability, respiratory distress, and gastrointestinal disturbances.

In the event of suspected overdosage, immediate assessment of the patient's condition is critical. Recommended actions include:

  1. Assessment: Conduct a thorough evaluation of the patient's vital signs and clinical status.

  2. Supportive Care: Initiate supportive measures as necessary, including airway management, oxygen supplementation, and intravenous fluids.

  3. Decontamination: If appropriate and within a reasonable time frame, consider gastrointestinal decontamination methods such as activated charcoal, provided the patient is alert and able to protect their airway.

  4. Specific Antidotes: If a specific antidote is available for the substance involved, it should be administered according to established protocols.

Healthcare professionals are encouraged to consult local poison control centers or toxicology experts for guidance on management strategies tailored to the specific circumstances of the overdose. Continuous monitoring and supportive care are paramount until the patient stabilizes or further interventions are deemed necessary.

Documentation of the incident, including the substance involved, estimated dose, time of exposure, and clinical findings, is crucial for ongoing management and future reference.

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 question.

Postmarketing Experience

No postmarketing experience details are provided in the insert.

Patient Counseling

Healthcare providers should advise patients to keep this product out of reach of children. In the event of an overdose, patients should seek medical assistance or contact a Poison Control Center immediately.

Patients should be informed 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 condition.

Additionally, healthcare providers should emphasize the importance of adhering to the recommended dosage and instruct patients not to exceed the directed amount while using this product.

Storage and Handling

The product is supplied in a carton that contains a dosing cup for accurate measurement. It is essential to store the product at a temperature range of 20°-25°C (68°-77°F). Refrigeration is not recommended, as it may affect the product's integrity. Users should retain the carton to access the full Directions for use, ensuring proper handling and administration.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for Tussin, 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 Tussin, 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

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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.