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Maximum Strength Severe Congestion and Cough

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Active ingredients
  • Guaifenesin 400 mg/20 mL
  • Dextromethorphan Hydrobromide 20 mg/20 mL
  • Phenylephrine Hydrochloride 10 mg/20 mL
Other brand names
Drug classes
Expectorant, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist, alpha-1 Adrenergic Agonist
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2020
Label revision date
October 29, 2025
Active ingredients
  • Guaifenesin 400 mg/20 mL
  • Dextromethorphan Hydrobromide 20 mg/20 mL
  • Phenylephrine Hydrochloride 10 mg/20 mL
Other brand names
Drug classes
Expectorant, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist, alpha-1 Adrenergic Agonist
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2020
Label revision date
October 29, 2025
Manufacturer
SAFEWAY
Registration number
M012
NDC root
21130-738

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Drug Overview

This medication is designed to help you manage symptoms associated with coughs and nasal congestion. It works by loosening phlegm (mucus) and thinning bronchial secretions, making it easier to clear your airways. The active ingredients include dextromethorphan HBr, which acts as a cough suppressant, guaifenesin, an expectorant that helps thin and loosen mucus, and phenylephrine HCl, a nasal decongestant that temporarily relieves nasal congestion.

You can use this product to temporarily relieve coughs caused by minor throat and bronchial irritation, which may occur with the common cold or from inhaled irritants. It also helps reduce the urge to cough, allowing you to get a better night's sleep.

Uses

This medication is designed to help you breathe easier by loosening phlegm (mucus) and thinning bronchial secretions. This action helps clear out bothersome mucus from your airways, making your coughs more productive.

You can also use this medication to temporarily relieve a cough caused by minor throat and bronchial irritation, which can happen with the common cold or from inhaling irritants. It can reduce the intensity of your cough and help control the urge to cough, making it easier for you to get a good night's sleep. Additionally, it can help relieve nasal congestion associated with a cold.

Dosage and Administration

When using this medication, it's important to follow the dosing instructions carefully to ensure your safety and effectiveness. You should not take more than 6 doses within a 24-hour period. Always measure your dose using the dosing cup that comes with the medication, as this ensures you get the correct amount. Avoid using this cup for any other products to prevent confusion.

For adults and children aged 12 years and older, the recommended dose is 20 mL taken every 4 hours. If you are caring for children under 12 years of age, do not use this medication for them. If you have any questions or need further guidance, consult your doctor.

What to Avoid

You should avoid using this product if you are currently taking a prescription monoamine oxidase inhibitor (MAOI), which are medications often prescribed for depression, psychiatric conditions, or Parkinson's disease. Additionally, you should not use this product for at least two weeks after stopping an MAOI. If you're unsure whether your medication contains an MAOI, please consult your doctor or pharmacist before using this product.

It's also important to follow the dosage instructions carefully and not exceed the recommended amount. Misuse or taking more than directed can lead to serious health issues, including dependence (a condition where your body becomes reliant on a substance). Always prioritize your safety and well-being by adhering to these guidelines.

Side Effects

If you experience nervousness, dizziness, or trouble sleeping while using this medication, it's important to stop taking it and consult your doctor. Additionally, if your symptoms do not improve within 7 days, or if they are accompanied by a fever, you should seek medical advice. Be alert for any returning cough, especially if it comes with a rash or a persistent headache, as these could indicate a more serious health issue.

Warnings and Precautions

You should not use this product if you are currently taking a prescription monoamine oxidase inhibitor (MAOI), which is a type of medication used for depression or certain other conditions, or if you have stopped taking an MAOI within the last two weeks. If you're unsure whether your medication contains an MAOI, please consult your doctor or pharmacist.

Before using this product, it's important to talk to your doctor if you have any of the following conditions: heart disease, high blood pressure, thyroid disease, diabetes, difficulty urinating due to an enlarged prostate, or a chronic cough related to smoking, asthma, chronic bronchitis, or emphysema. If you experience an overdose, seek emergency medical help or contact a Poison Control Center immediately at 1-800-222-1222.

You should stop using this product and call your doctor if you experience nervousness, dizziness, or sleeplessness, if your symptoms do not improve within 7 days or are accompanied by a fever, or if your cough returns or occurs with a rash or persistent headache, as these may indicate a more serious condition.

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 err on the side of caution—if you notice any concerning symptoms or if you’re unsure, don’t hesitate to get help right away. Your health and safety are 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’s important to be cautious when giving medication to children. For children under 12 years of age, this medication should not be used at all. If you have a child who is 12 years or older, you can give them 20 mL using the dosing cup provided, but make sure to do this every 4 hours and not exceed 6 doses in a 24-hour period. Always use the dosing cup that comes with the medication, and avoid using it for any other products.

Keep this medication out of reach of children to prevent accidental ingestion. If you suspect an overdose, seek medical help immediately 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, 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 the drug insert does not provide specific information about dosage adjustments, special monitoring, or safety considerations for your condition. This means that there are no tailored guidelines for how this medication should be used if you have renal impairment (kidney issues).

Always consult your healthcare provider for personalized advice and to ensure that any medication you take is safe and appropriate for your kidney health. They can help you understand how to manage your treatment effectively.

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).

Before starting any new medication, including this one, you should discuss your liver health with your healthcare provider. They can help determine the best approach for your treatment and ensure your safety.

Drug Interactions

It's crucial to talk to your healthcare provider about any medications you are currently taking. If you are on a prescription monoamine oxidase inhibitor (MAOI), you should not use this medication while taking the MAOI or for at least two weeks after stopping it, as this can lead to serious interactions that may affect your health.

Since there are no other specific drug interactions or laboratory test interactions noted, it's still important to keep your healthcare provider informed about all the medications and supplements you are using. This helps ensure your safety and the effectiveness of your treatment.

Storage and Handling

To ensure the best performance of your product, store it at room temperature. It's important to avoid refrigerating it, as this can affect its effectiveness. When handling the product, make sure to do so in a clean environment to maintain its integrity and safety. Always follow any specific instructions provided with the product for optimal use.

Additional Information

You should take this medication orally, using the dosing cup provided. For adults and children aged 12 years and older, the recommended dose is 20 mL every 4 hours. However, this medication is not recommended for children under 12 years of age.

If you are pregnant or breastfeeding, it's important to consult a healthcare professional before using this medication. Always keep it 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 the purpose of this medication?

This medication helps loosen phlegm (mucus) and thin bronchial secretions, making coughs more productive. It temporarily relieves cough due to minor throat and bronchial irritation, nasal congestion, and the impulse to cough.

Who can use this medication?

This medication is intended for adults and children aged 12 years and older. It should not be used by children under 12 years of age.

What is the recommended dosage?

The recommended dosage for adults and children 12 years and older is 20 mL every 4 hours, not to exceed 6 doses in a 24-hour period.

Are there any contraindications for this medication?

Do not use this medication if you are currently taking a prescription monoamine oxidase inhibitor (MAOI) or for 2 weeks after stopping an MAOI.

What should I do if I experience side effects?

Stop using the medication and consult a doctor if you experience nervousness, dizziness, sleeplessness, or if symptoms do not improve within 7 days.

What precautions should I take before using this medication?

Consult a doctor before use if you have heart disease, high blood pressure, thyroid disease, diabetes, or a chronic cough.

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 use this medication if I am pregnant or breastfeeding?

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

How should I store this medication?

Store the medication at room temperature and do not refrigerate.

Packaging Info

Below are the non-prescription pack sizes of Maximum Strength Severe Congestion and Cough (dextromethorphan hbr, guaifenesin, and phenylephrine hcl). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Maximum Strength Severe Congestion and Cough.
Details

Drug Information (PDF)

This file contains official product information for Maximum Strength Severe Congestion and Cough, 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 relief of cough associated with minor throat and bronchial irritation, which may occur due to the common cold or inhaled irritants. It assists in loosening phlegm (mucus) and thinning bronchial secretions, thereby facilitating the expulsion of bothersome mucus and enhancing the productivity of coughs.

Additionally, this drug temporarily relieves the intensity of coughing and the impulse to cough, which may aid in promoting sleep. It also alleviates nasal congestion associated with colds.

Limitations of use include the absence of specific indications for chronic cough or cough associated with smoking, asthma, or emphysema. This drug should be used as directed and is not intended for long-term management of cough.

Dosage and Administration

The maximum recommended dosage is 6 doses within a 24-hour period. It is imperative to measure the dosage exclusively with the dosing cup provided, and this cup should not be utilized for any other products to ensure accurate dosing.

For adults and children aged 12 years and older, the recommended dose is 20 mL, administered every 4 hours as needed. For children under 12 years of age, the use of this product is not recommended.

Healthcare professionals should advise patients to adhere strictly to these guidelines to ensure safe and effective use of the medication.

Contraindications

Use of this product is contraindicated in patients currently taking a prescription monoamine oxidase inhibitor (MAOI), which includes certain medications for depression, psychiatric or emotional conditions, or Parkinson's disease. Additionally, use is contraindicated for a period of 2 weeks following the discontinuation of an MAOI. Patients should consult a healthcare professional if uncertain whether their prescription medication contains an MAOI.

Furthermore, the product should not be used in excess of the directed dosage.

Warnings and Precautions

It is imperative to adhere to the following warnings and precautions when considering the use of this product.

Warnings The use of this product is contraindicated in individuals currently taking a prescription monoamine oxidase inhibitor (MAOI), which includes certain medications prescribed for depression, psychiatric or emotional conditions, or Parkinson's disease. Additionally, this product should not be used for a period of two weeks following the discontinuation of an MAOI. Healthcare professionals should advise patients to consult with a doctor or pharmacist if there is uncertainty regarding the presence of an MAOI in their prescription medication.

General Precautions Prior to use, patients should seek medical advice if they have any of the following conditions:

  • Heart disease

  • High blood pressure

  • Thyroid disease

  • Diabetes

  • Difficulty urinating due to an enlarged prostate gland

  • A persistent or chronic cough, particularly associated with smoking, asthma, chronic bronchitis, or emphysema

  • A cough that is accompanied by excessive phlegm (mucus)

Emergency Medical Help Instructions In the event of an overdose, it is crucial to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222.

Stop Taking and Call Your Doctor Instructions Patients should discontinue use and consult a healthcare professional if they experience any of the following:

  • Nervousness, dizziness, or sleeplessness

  • Symptoms that do not improve within seven days or are accompanied by fever

  • A recurrence of cough, or cough that is associated with a rash or persistent headache, as these may indicate a serious underlying condition.

Side Effects

Patients should discontinue use and consult a healthcare professional if they experience nervousness, dizziness, or sleeplessness. Additionally, if symptoms do not improve within 7 days, or if they are accompanied by fever, patients are advised to seek medical attention. A return of cough, particularly if it is associated with a rash or persistent headache, may indicate a serious condition and warrants immediate evaluation by a healthcare provider.

Drug Interactions

The concomitant use of this medication with prescription monoamine oxidase inhibitors (MAOIs) is contraindicated. Patients should not take this medication while on MAOIs or for a period of two weeks following the discontinuation of MAOI therapy, as this may result in serious interactions.

No additional drug interactions or laboratory test interactions have been identified for this medication. Therefore, no further dosage adjustments or monitoring recommendations are necessary beyond the contraindication with MAOIs.

Packaging & NDC

Below are the non-prescription pack sizes of Maximum Strength Severe Congestion and Cough (dextromethorphan hbr, guaifenesin, and phenylephrine hcl). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Maximum Strength Severe Congestion and Cough.
Details

Pediatric Use

Pediatric patients under 12 years of age should not use this medication. For patients aged 12 years and older, the recommended dosage is 20 mL, administered using the dosing cup provided, every 4 hours. It is important not to exceed 6 doses within a 24-hour period. The dosing cup must be used exclusively for this product and should not be utilized with other medications. Care should be taken to keep the product out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or contact a Poison Control Center at 1-800-222-1222.

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. 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 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 the safety of both the mother and the developing fetus.

Lactation

Lactating mothers are advised to consult a health professional prior to using this medication. There is currently no available data on 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 have no specific information regarding dosage adjustments, special monitoring, or safety considerations provided in the drug insert. Therefore, healthcare professionals should exercise caution when prescribing this medication to individuals with reduced kidney function, as the lack of data necessitates careful clinical judgment.

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 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 mitigate potential risks and complications associated with excessive intake. It is essential for healthcare providers to be aware of the signs and symptoms that may arise from an overdose, although specific symptoms were not detailed in the provided information.

Management of an overdose typically involves supportive care and symptomatic treatment, tailored to the individual patient's needs. Continuous monitoring and assessment may be necessary to ensure patient safety and to address any complications that may develop.

Nonclinical Toxicology

If pregnant or breastfeeding, it is advised to consult a health professional prior to use. No specific non-teratogenic effects have been identified in the available data. Additionally, there are no detailed findings regarding nonclinical toxicology or animal pharmacology and toxicology provided in the current information.

Postmarketing Experience

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

Patient Counseling

Healthcare providers should advise patients to keep the medication out of reach of children to prevent accidental ingestion. In the event of an overdose, patients should be instructed to seek medical help immediately or contact a Poison Control Center at 1-800-222-1222.

Patients must be cautioned not to exceed the recommended dosage. They should be informed to discontinue use and consult a doctor if they experience nervousness, dizziness, or sleeplessness. Additionally, if symptoms do not improve within 7 days, or if they occur alongside a fever, patients should seek medical advice. It is also important to inform patients that a returning cough, or one that is accompanied by a rash or persistent headache, may indicate a serious condition requiring medical evaluation.

Before initiating treatment, healthcare providers should encourage patients to discuss their medical history, particularly if they have any of the following conditions: heart disease, high blood pressure, thyroid disease, diabetes, or difficulty urinating due to an enlarged prostate gland. Patients with a persistent or chronic cough, such as that associated with smoking, asthma, chronic bronchitis, or emphysema, should also consult their healthcare provider prior to use. Furthermore, patients should 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 room temperature, ensuring that it is not exposed to refrigeration. Proper handling should be observed to maintain the integrity of the product throughout its shelf life.

Additional Clinical Information

The medication is administered orally, with a recommended dosage of 20 mL every 4 hours for adults and children aged 12 years and older. It is contraindicated for use in children under 12 years of age. Clinicians should advise patients who are pregnant or breastfeeding to consult a health professional prior to use. Additionally, it is crucial 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 further information is available regarding laboratory tests, abuse potential, or postmarketing experiences.

Drug Information (PDF)

This file contains official product information for Maximum Strength Severe Congestion and Cough, 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 Maximum Strength Severe Congestion and Cough, 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.