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Green Guard Maximum Strength Non-Aspirin

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Active ingredient
Acetaminophen 500 mg
Other brand names
Dosage forms
  • Tablet
  • Tablet, Film Coated
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2023
Label revision date
September 8, 2025
Active ingredient
Acetaminophen 500 mg
Other brand names
Dosage forms
  • Tablet
  • Tablet, Film Coated
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2023
Label revision date
September 8, 2025
Manufacturer
Unifirst First Aid Corporation
Registration number
M013
NDC roots
47682-170, 47682-619

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Drug Overview

Acetaminophen is a pain reliever and fever reducer that is commonly used to temporarily relieve minor aches and pains, such as headaches, muscular aches, toothaches, and menstrual cramps. It can also help reduce fever. This medication is available in a maximum strength formulation, with each tablet containing 500 mg of acetaminophen (also known as paracetamol in some regions).

You may find acetaminophen compared to Extra Strength Tylenol®, as they share the same active ingredient. It is a non-aspirin option, making it suitable for those who may need to avoid aspirin for various reasons.

Uses

You can use this medication to temporarily relieve minor aches and pains from various conditions, including headaches, muscular aches, arthritis pain, backaches, toothaches, and cramps associated with menstruation or premenstrual syndrome. It can also help ease discomfort from the common cold.

In addition to pain relief, this medication is effective in temporarily reducing fever. If you're experiencing any of these symptoms, this medication may provide the relief you need.

Dosage and Administration

If you are an adult or a child aged 12 years and older, you should take 2 tablets every 6 hours as long as you are experiencing symptoms. However, it’s important not to exceed 6 tablets in a 24-hour period unless your doctor advises otherwise. Additionally, you should not use this medication for more than 10 days unless directed by your doctor.

For children under 12 years of age, it’s best to consult a doctor before giving them this medication. Always follow your healthcare provider's instructions to ensure safe and effective use.

What to Avoid

It's important to be cautious when using this medication. You should not take it alongside any other drugs that contain acetaminophen, whether they are prescription or over-the-counter. If you're unsure whether a medication contains acetaminophen, please consult your doctor or pharmacist for guidance. Additionally, avoid using this product if you have a known allergy to acetaminophen or any of its inactive ingredients.

By following these guidelines, you can help ensure your safety and avoid potential complications. Always prioritize your health and seek professional advice if you have any questions or concerns.

Side Effects

This product contains acetaminophen, which can lead to severe liver damage if you exceed 4,000 mg in 24 hours, take it with other acetaminophen-containing medications, or consume three or more alcoholic drinks daily while using it. Additionally, be aware that acetaminophen may cause serious skin reactions, including skin reddening, blisters, or rash. If you notice any skin reactions, stop using the product and seek medical help immediately.

You should also consult a doctor if your pain worsens or lasts longer than 10 days, if your fever gets worse or lasts more than 3 days, or if you experience new symptoms, redness, or swelling, as these could indicate a serious condition. If you have liver disease or are taking the blood-thinning medication warfarin, it's important to talk to your doctor or pharmacist before using this product.

Warnings and Precautions

This product contains acetaminophen, which can lead to severe liver damage if you exceed 4,000 mg in a 24-hour period, take it with other medications containing acetaminophen, or consume three or more alcoholic drinks daily while using it. Additionally, be aware that acetaminophen may cause serious skin reactions, such as skin reddening, blisters, or rashes. If you experience any of these symptoms, stop using the product and seek medical help immediately.

If you suspect an overdose, it’s crucial to get emergency medical assistance or contact a Poison Control Center at 1-800-222-1222 right away, even if you don’t notice any symptoms. You should also stop taking the product and call your doctor if your pain worsens or lasts more than 10 days, your fever gets worse or lasts more than 3 days, you develop new symptoms, or notice any redness or swelling, as these could indicate a serious condition.

Overdose

Taking more than 4,000 mg of acetaminophen in a 24-hour period can lead to severe liver damage. It's important to be aware of this limit to avoid serious health risks. Additionally, acetaminophen can cause severe skin reactions, which may present as skin reddening, blisters, or a rash.

If you notice any signs of a skin reaction, stop using the medication immediately and seek medical help. Always prioritize your health and safety by following dosage guidelines and being alert to any unusual symptoms. If you suspect an overdose or experience severe reactions, contact a healthcare professional right away.

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

If you are considering this medication for your child, it's important to note that it is not recommended for children under 12 years old without consulting a doctor first. Always seek professional advice to ensure the safety and appropriate use of the medication for your child's specific needs.

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 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 be cautious when using products that contain acetaminophen. Taking more than 4,000 mg in a 24-hour period can lead to severe liver damage, which is the maximum daily amount recommended. Additionally, you should avoid using other medications that also contain acetaminophen, as this can increase your risk of liver injury.

It's also crucial to limit alcohol consumption to fewer than three drinks per day while using this product, as drinking alcohol can further strain your liver. Always consult with your healthcare provider for personalized advice and to ensure your safety when using medications.

Drug Interactions

It's important to talk to your doctor or pharmacist before using this medication if you are taking warfarin, a blood thinner. Acetaminophen can interact with warfarin and may affect your INR levels, which is a measure of how well your blood is clotting.

Always discuss any medications you are taking with your healthcare provider to ensure your safety and avoid any potential interactions. This is especially crucial when managing conditions that require careful monitoring, like those involving blood thinners.

Storage and Handling

To ensure the safety and effectiveness of your product, store it at room temperature, ideally between 59ºF and 86ºF (15ºC and 30ºC). Always use the tamper-evident sealed packets provided, as these help guarantee that the product remains uncontaminated. If you notice any opened or torn packets, do not use them, as this could compromise the product's integrity and safety.

By following these simple storage and handling guidelines, you can help maintain the quality of the product and ensure its safe use.

Additional Information

No further information is available.

FAQ

What is Acetaminophen used for?

Acetaminophen is a pain reliever and fever reducer that temporarily relieves minor aches and pains due to headaches, muscular aches, arthritis, backaches, the common cold, toothaches, and menstrual cramps.

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

Adults and children 12 years and over should take 2 tablets every 6 hours while symptoms last, not exceeding 6 tablets in 24 hours unless directed by a doctor.

Are there any contraindications for using Acetaminophen?

Do not use Acetaminophen with any other drug containing acetaminophen or if you are allergic to acetaminophen or any inactive ingredients in the product.

What should I do if I experience a skin reaction?

If you experience symptoms like skin reddening, blisters, or rash, stop using Acetaminophen and seek medical help immediately.

What are the liver warnings associated with Acetaminophen?

Severe liver damage may occur if you take more than 4,000 mg in 24 hours, use it with other acetaminophen-containing drugs, or consume 3 or more alcoholic drinks daily while using it.

What should I do in case of an overdose?

In case of overdose, seek emergency medical help or contact a Poison Control Center immediately, as quick medical attention is critical.

Can I use Acetaminophen if I am pregnant or breastfeeding?

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

What should I do if my symptoms do not improve?

Stop using Acetaminophen and consult a doctor if pain worsens or lasts more than 10 days, fever worsens or lasts more than 3 days, or if new symptoms occur.

Packaging Info

Below are the non-prescription pack sizes of Green Guard Maximum Strength Non-Aspirin (acetaminophen). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Green Guard Maximum Strength Non-Aspirin is available in multiple dosage forms and packaging configurations.
Details

Drug Information (PDF)

This file contains official product information for Green Guard Maximum Strength Non-Aspirin, 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 temporary relief of minor aches and pains associated with various conditions, including headache, muscular aches, minor pain of arthritis, backache, the common cold, toothache, and premenstrual and menstrual cramps. Additionally, it is indicated for the temporary reduction of fever.

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

Dosage and Administration

Adults and children aged 12 years and over are instructed to take 2 tablets orally every 6 hours as needed while symptoms persist. The maximum dosage should not exceed 6 tablets within a 24-hour period, unless otherwise directed by a healthcare professional. Additionally, the use of this medication should not extend beyond 10 days unless specifically advised by a doctor.

For children under 12 years of age, it is recommended to consult a healthcare professional for appropriate dosing guidance.

Contraindications

Use of this product is contraindicated in the following situations:

  • Co-administration with any other drug containing acetaminophen, whether prescription or nonprescription, is prohibited. If there is uncertainty regarding the presence of acetaminophen in another medication, consultation with a healthcare professional is advised.

  • This product should not be used in individuals with a known allergy to acetaminophen or any of the inactive ingredients contained in the formulation.

Warnings and Precautions

Severe liver damage may occur with the use of this product, which contains acetaminophen. Healthcare professionals should advise patients to adhere strictly to the following guidelines to minimize the risk of liver injury:

  • Do not exceed 4,000 mg of acetaminophen in a 24-hour period, as this is the maximum daily dosage.

  • Avoid concurrent use with other medications that contain acetaminophen.

  • Limit alcohol consumption to fewer than three drinks per day while using this product.

Patients should be informed of the potential for severe skin reactions associated with acetaminophen. Symptoms indicative of such reactions may include skin reddening, blisters, and rash. In the event of a skin reaction, patients must discontinue use immediately and seek medical assistance.

In cases of suspected overdose, it is imperative to obtain emergency medical help or contact a Poison Control Center (1-800-222-1222) without delay. Prompt medical attention is crucial for both adults and children, even if no signs or symptoms are initially apparent.

Patients should be instructed to stop taking the product and consult a healthcare provider if any of the following occur:

  • Pain worsens or persists for more than 10 days.

  • Fever intensifies or lasts longer than 3 days.

  • New symptoms develop.

  • Redness or swelling is observed.

These symptoms may indicate a serious underlying condition that requires further evaluation. Regular monitoring and appropriate laboratory tests may be warranted based on the clinical scenario and patient history.

Side Effects

Patients using this product should be aware of the potential for serious adverse reactions, particularly related to liver health and allergic skin responses.

Severe liver damage may occur if patients exceed the maximum daily dosage of 4,000 mg of acetaminophen within a 24-hour period, take this product in conjunction with other medications containing acetaminophen, or consume three or more alcoholic drinks daily while using this product.

Additionally, acetaminophen may cause severe skin reactions, which can manifest as skin reddening, blisters, or rash. In the event of any skin reaction, patients are advised to discontinue use immediately and seek medical assistance.

Patients should also be vigilant for other concerning symptoms. If pain worsens or persists for more than 10 days, if fever intensifies or lasts longer than 3 days, if new symptoms arise, or if redness or swelling is observed, it is recommended that patients stop use and consult a healthcare professional, as these may indicate a serious condition.

Patients with liver disease should consult a doctor prior to using this product. Furthermore, individuals taking the blood-thinning medication warfarin should seek advice from a doctor or pharmacist before use to avoid potential interactions.

Drug Interactions

Patients taking acetaminophen should consult with a healthcare professional prior to use if they are concurrently using warfarin, a blood-thinning medication. Acetaminophen may influence International Normalized Ratio (INR) levels, which could affect the efficacy and safety of anticoagulation therapy. Monitoring of INR levels is advised in patients receiving both acetaminophen and warfarin to ensure appropriate therapeutic management.

No additional drug interactions or laboratory test interactions have been identified for acetaminophen.

Packaging & NDC

Below are the non-prescription pack sizes of Green Guard Maximum Strength Non-Aspirin (acetaminophen). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Green Guard Maximum Strength Non-Aspirin is available in multiple dosage forms and packaging configurations.
Details

Pediatric Use

Pediatric patients under 12 years of age should consult a healthcare professional before use. It is important to assess the appropriateness of treatment and dosage for this age group, as specific recommendations may vary based on individual health needs and conditions.

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. Monitoring for potential adverse effects and therapeutic efficacy is recommended in 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 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 mothers.

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 should be closely monitored when using this product, which contains acetaminophen. It is important to note that severe liver damage may occur if patients exceed the maximum daily dosage of 4,000 mg in a 24-hour period. Additionally, patients should avoid concomitant use with other medications containing acetaminophen, as this can further increase the risk of liver injury.

Patients with compromised liver function are also advised to limit alcohol consumption to fewer than three alcoholic drinks per day while using this product. Given the potential for increased susceptibility to liver damage, healthcare providers should assess liver function and consider appropriate dosage adjustments or alternative therapies for patients with significant hepatic impairment. Regular monitoring of liver function tests may be warranted to ensure patient safety.

Overdosage

In cases of overdosage, it is critical to recognize the potential for severe liver damage, which may occur if an individual ingests more than 4,000 mg of acetaminophen within a 24-hour period. This dosage represents the maximum recommended daily amount.

Healthcare professionals should be vigilant for signs of severe skin reactions associated with acetaminophen use. Symptoms may manifest as skin reddening, blisters, or rash. Upon the occurrence of any skin reaction, it is imperative to discontinue use immediately and seek medical assistance without delay.

Management of acetaminophen overdosage should include immediate medical evaluation and intervention. Monitoring liver function and providing supportive care are essential components of the management strategy. In cases of suspected overdose, healthcare providers may consider the administration of N-acetylcysteine as an antidote, particularly if the overdose is identified within a critical time frame.

Prompt recognition and appropriate management of acetaminophen overdosage are vital to mitigate the risk of serious complications.

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

Postmarketing experience has identified that acetaminophen may be associated with severe skin reactions. Reports indicate that symptoms can include skin reddening, blisters, and rash. In the event of a skin reaction, it is advised to discontinue use immediately and seek medical assistance.

Patient Counseling

Healthcare providers should advise patients to keep the medication out of reach of children to prevent accidental ingestion. It is essential to emphasize the importance of seeking immediate medical assistance in the event of an overdose. Patients should be informed to contact a Poison Control Center at 1-800-222-1222 or seek medical help right away, regardless of whether they observe any signs or symptoms. Quick medical attention is critical for both adults and children in such situations.

Storage and Handling

The product is supplied in tamper-evident sealed packets to ensure integrity and safety. It is essential to store the packets at room temperature, specifically within the range of 59ºF to 86ºF (15ºC to 30ºC). Care should be taken to avoid using any packets that are opened or torn, as this may compromise the product's quality and efficacy.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for Green Guard Maximum Strength Non-Aspirin, 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 Green Guard Maximum Strength Non-Aspirin, 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.