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8 Hr Muscle Aches and Pain

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Active ingredient
Acetaminophen 650 mg
Other brand names
Dosage form
Tablet, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2025
Label revision date
April 28, 2025
Active ingredient
Acetaminophen 650 mg
Other brand names
Dosage form
Tablet, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2025
Label revision date
April 28, 2025
Manufacturer
CVS Pharmacy
Registration number
ANDA215486
NDC root
51316-354

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Drug Overview

This medication is designed to temporarily relieve minor aches and pains caused by various conditions, including muscular aches, backaches, arthritis, toothaches, menstrual cramps, headaches, and discomfort associated with the common cold. Additionally, it helps to reduce fever, providing you with comfort when you're not feeling your best.

While the specific way it works isn't detailed, you can trust that this medication is formulated to help alleviate your discomfort and improve your overall well-being during those times when you need it most.

Uses

You can use this medication to temporarily relieve minor aches and pains caused by various conditions, including muscular aches, backaches, arthritis pain, toothaches, and menstrual cramps. It is also effective for headaches and discomfort associated with the common cold. Additionally, this medication can help reduce fever temporarily, providing you with some relief when you're not feeling your best.

Dosage and Administration

If you are an adult or a child aged 12 years and older, you should take 2 caplets every 8 hours with a full glass of water. It's important to swallow the caplets whole, so avoid crushing, chewing, splitting, or dissolving them. Make sure not to exceed 6 caplets in a 24-hour period, and do not use this medication for more than 10 days unless your doctor advises you to do so.

For children under 12 years old, this medication is not recommended. Always follow the guidelines provided and consult with a healthcare professional if you have any questions or concerns about using this medication.

What to Avoid

You should avoid using this medication if you are allergic to acetaminophen or any of its inactive ingredients. Additionally, do not take this medication alongside any other products that contain acetaminophen, whether they are prescription or over-the-counter. If you're unsure whether a medication contains acetaminophen, it's important to consult with your doctor or pharmacist for guidance.

Taking this medication inappropriately can lead to serious health issues, so please follow these instructions carefully to ensure your safety.

Side Effects

You should be aware that this product contains acetaminophen, which can lead to severe liver damage if you exceed the maximum daily limit of 6 caplets, take it with other acetaminophen-containing medications, or consume 3 or more alcoholic drinks daily while using it. Additionally, acetaminophen may cause serious skin reactions, including symptoms like skin reddening, blisters, or rash. If you experience any of these skin reactions, stop using the product and seek medical help immediately.

It's important to stop using this product and consult a doctor if your pain worsens or lasts more than 10 days, if your fever worsens or lasts more than 3 days, or if you notice 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, be sure 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 6 caplets in 24 hours, take it with other medications containing acetaminophen, or consume 3 or more alcoholic drinks daily while using it. Be aware that acetaminophen may also cause serious skin reactions, such as skin reddening, blisters, or rash. If you experience any of these symptoms, stop using the product immediately and seek medical help.

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. Additionally, you should stop taking this 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 if you notice redness or swelling, as these could indicate a serious condition.

Overdose

If you suspect an overdose, it's important to stay calm and take immediate action. While the specific signs of an overdose are not detailed, common symptoms can include extreme drowsiness, confusion, or difficulty breathing. If you notice any of these signs, seek medical help right away.

In case of an overdose, contact your local emergency services or go to the nearest hospital. It's crucial to provide them with as much information as possible about the substance taken and the amount, if known. Remember, acting quickly can make a significant difference in your health and safety.

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 know that it should not be used in children under 12 years old. For those aged 12 and older, the recommended dosage is 2 caplets every 8 hours, taken with water. Make sure they swallow the caplets whole—do not crush, chew, split, or dissolve them. It's crucial not to exceed 6 caplets in a 24-hour period and to avoid using the medication for more than 10 days unless a doctor advises otherwise.

In case of an overdose, seek medical help immediately, even if your child does not show any signs or symptoms. Always prioritize safety and consult with a healthcare professional if you have any questions or concerns about using 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 considering this medication, it’s important to consult with a healthcare provider. 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 6 caplets in a 24-hour period is the maximum daily limit, and exceeding this can lead to severe liver damage. Additionally, avoid using other medications that also contain acetaminophen, as this can increase your risk of harm.

If you consume 3 or more alcoholic drinks daily, you should be especially careful, as this can further strain your liver while using this product. 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, especially if you are taking warfarin, a blood-thinning drug. Combining these medications can increase the risk of bleeding, so your healthcare provider can help ensure your safety.

Additionally, you should avoid using this medication alongside any other products that contain acetaminophen, whether they are prescription or over-the-counter. If you're unsure whether a medication contains acetaminophen, don't hesitate to ask your doctor or pharmacist for clarification. Always prioritize open communication about your medications to help prevent any harmful interactions.

Storage and Handling

To ensure the best performance and safety of your product, store it in a cool, dry place at a temperature between 20-25ºC (68-77ºF). This temperature range helps maintain the integrity of the device.

When handling the product, be sure to do so with clean hands and in a sterile field (a clean area free from germs) to prevent contamination. Always follow any specific disposal instructions provided to ensure safe and responsible disposal of any components.

Additional Information

No further information is available.

FAQ

What conditions does this drug temporarily relieve?

This drug temporarily relieves minor aches and pains due to muscular aches, backache, minor arthritis pain, toothache, menstrual cramps, headache, and the common cold. It also temporarily reduces fever.

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

You should take 2 caplets every 8 hours with water, swallowing them whole. Do not take more than 6 caplets in 24 hours and do not use for more than 10 days unless directed by a doctor.

Is this drug safe for children under 12 years?

No, do not use this drug for children under 12 years.

What should I do if I experience a skin reaction?

If you experience symptoms like skin reddening, blisters, or rash, stop use and seek medical help right away.

What are the liver warnings associated with this drug?

Severe liver damage may occur if you take more than 6 caplets in 24 hours, use with other drugs containing acetaminophen, or consume 3 or more alcoholic drinks daily while using this product.

What should I do in case of an overdose?

In case of overdose, get medical help or contact a Poison Control Center immediately. Quick medical attention is critical for both adults and children.

Can I use this drug if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, ask a health professional before use.

What should I do if my pain or fever worsens?

Stop use and ask a doctor if your pain worsens or lasts more than 10 days, or if your fever worsens or lasts more than 3 days.

Are there any contraindications for this drug?

Do not use this drug if you are allergic to acetaminophen or any inactive ingredients, or if you are using any other drug containing acetaminophen.

Packaging Info

Below are the non-prescription pack sizes of 8 Hr Muscle Aches and Pain (acetaminophen). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for 8 Hr Muscle Aches and Pain.
Details

Drug Information (PDF)

This file contains official product information for 8 Hr Muscle Aches and Pain, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Description

No relevant information is available for SPL code 34089-3.

Uses and Indications

This drug is indicated for the temporary relief of minor aches and pains associated with various conditions, including muscular aches, backache, minor pain of arthritis, toothache, premenstrual and menstrual cramps, headache, and discomfort related to the common cold. 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 caplets every 8 hours with water. The caplets should be swallowed whole and must not be crushed, chewed, split, or dissolved. The maximum dosage should not exceed 6 caplets within a 24-hour period. Additionally, the use of this medication should not extend beyond 10 days unless directed by a healthcare professional.

For children under 12 years of age, the use of this medication is not recommended.

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 due to the risk of acetaminophen overdose. If there is uncertainty regarding the presence of acetaminophen in other medications, consultation with a healthcare professional is advised.

Additionally, this product should not be used in individuals with a known allergy to acetaminophen or any of the inactive ingredients contained in the formulation, as this may lead to severe allergic reactions.

Warnings and Precautions

This product contains acetaminophen, which carries specific warnings and precautions that healthcare professionals must communicate to patients to ensure safe use.

Liver Warning Severe liver damage may occur if the maximum daily dosage of 6 caplets is exceeded within a 24-hour period. Additionally, the risk of liver damage increases if this product is taken concurrently with other medications containing acetaminophen or if the patient consumes three or more alcoholic drinks daily while using this product. It is essential to monitor patients for signs of liver dysfunction, particularly in those who may be at higher risk due to concurrent medication use or alcohol consumption.

Allergy Alert Acetaminophen may lead to severe skin reactions. Symptoms indicative of such reactions include skin reddening, blisters, and rash. If any of these symptoms occur, patients should be advised to discontinue use immediately and seek medical assistance.

Emergency Medical Help In the event of an overdose, it is critical to obtain emergency medical help or contact a Poison Control Center (1-800-222-1222) without delay. Prompt medical attention is vital for both adults and children, even if no signs or symptoms are immediately apparent.

Consultation with Healthcare Provider Patients should be instructed to stop taking this product and consult their healthcare provider if any of the following occur: pain worsens or persists for more than 10 days, fever worsens or lasts longer than 3 days, new symptoms develop, or if redness or swelling is observed. These symptoms may indicate a serious underlying condition that requires further evaluation.

Side Effects

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

Severe liver damage may occur if patients exceed the maximum recommended dosage of 6 caplets in a 24-hour period, take this product in conjunction with other medications containing acetaminophen, or consume 3 or more alcoholic drinks daily while using this product.

Additionally, there is an allergy alert associated with acetaminophen, which may lead to severe skin reactions. Symptoms of such reactions can include skin reddening, blisters, and rash. In the event of a skin reaction, patients are advised to discontinue use immediately and seek medical assistance.

Patients should also be vigilant for other signs that may indicate a serious condition. They are advised to stop use and consult a healthcare professional 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 important for patients with liver disease to 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 should consult a healthcare professional prior to using this medication if they are concurrently taking warfarin, a blood-thinning agent. The combination may increase the risk of bleeding due to potential pharmacodynamic interactions.

Additionally, this medication should not be used in conjunction with any other products containing acetaminophen, whether prescription or over-the-counter. Patients are advised to verify the presence of acetaminophen in other medications with a healthcare provider or pharmacist to avoid unintentional overdose and associated adverse effects.

Packaging & NDC

Below are the non-prescription pack sizes of 8 Hr Muscle Aches and Pain (acetaminophen). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for 8 Hr Muscle Aches and Pain.
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 caplets every 8 hours with water, to be swallowed whole without crushing, chewing, splitting, or dissolving. The maximum allowable dosage is 6 caplets within a 24-hour period, and use should not exceed 10 days unless directed by a healthcare professional.

In the event of an overdose, prompt medical attention is essential for both adults and pediatric patients, even if no signs or symptoms are immediately apparent.

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 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 considered in these populations to ensure the safety of both the mother and the fetus or infant.

Lactation

Lactating mothers are advised to consult a health professional prior to using this medication. There is no specific data available regarding the excretion of this medication in breast milk or its effects on breastfed infants. Therefore, caution is recommended when administering this medication to lactating individuals.

Renal Impairment

Patients with renal impairment have not been specifically addressed in the available prescribing information. There are no dosage adjustments, special monitoring requirements, or safety considerations outlined for individuals with reduced kidney function. Healthcare professionals should exercise caution and consider the lack of data when prescribing to this patient population.

Hepatic Impairment

Patients with hepatic impairment should be closely monitored when using this product, which contains acetaminophen. Severe liver damage may occur if patients exceed the maximum daily dosage of 6 caplets within a 24-hour period. Additionally, patients must avoid concomitant use with other medications containing acetaminophen, as this can further increase the risk of liver injury.

It is also advised that patients with compromised liver function limit their alcohol intake to fewer than 3 alcoholic drinks per day while using this product. Given the potential for increased susceptibility to acetaminophen-related hepatotoxicity in this population, careful consideration of liver function and adherence to these guidelines is essential to minimize the risk of severe liver damage. Regular monitoring of liver function tests may be warranted in patients with significant hepatic impairment.

Overdosage

In the absence of specific information regarding overdosage, healthcare professionals are advised to exercise caution and adhere to general principles of management in cases of suspected overdose.

It is essential to monitor the patient closely for any potential symptoms that may arise from an overdose. Symptoms can vary widely depending on the substance involved and the individual patient's response.

In the event of an overdose, immediate medical attention should be sought. Healthcare providers should initiate supportive care and symptomatic treatment as necessary. This may include monitoring vital signs, providing respiratory support, and administering intravenous fluids if indicated.

Additionally, healthcare professionals should consider contacting a poison control center for guidance on specific management protocols and interventions tailored to the situation.

Documentation of the incident, including the substance involved, the amount taken, and the time of ingestion, is crucial for effective management and follow-up care.

Nonclinical Toxicology

No teratogenic or non-teratogenic effects have been reported in the available nonclinical studies. Additionally, there is no information regarding animal pharmacology and toxicology. The absence of data limits the assessment of potential risks associated with the compound in these areas.

Postmarketing Experience

Postmarketing experience has identified several adverse reactions associated with the use of the product. Notably, severe skin reactions have been reported, which include symptoms such as skin reddening, blisters, and rash. In the event of a skin reaction, it is advised that the use of the product be discontinued immediately, and medical assistance should be sought without delay.

Patient Counseling

Healthcare providers should advise patients to keep this medication out of reach of children to prevent accidental ingestion. In the event of an overdose, it is crucial for patients to seek medical help immediately or contact a Poison Control Center at 1-800-222-1222, as prompt medical attention is essential for both adults and children, even if no signs or symptoms are apparent.

Patients should be informed not to use this medication in conjunction with any other products containing acetaminophen, whether prescription or nonprescription. If patients are uncertain about the presence of acetaminophen in other medications, they should be encouraged to consult with a doctor or pharmacist.

It is important to instruct patients to discontinue use and consult a doctor if their pain worsens or persists for more than 10 days, if their fever intensifies or lasts longer than 3 days, if they experience new symptoms, or if they notice any redness or swelling, as these may indicate a serious condition.

Patients with a history of liver disease should be advised to consult a doctor before using this medication. Additionally, those taking the blood-thinning medication warfarin should seek guidance from a doctor or pharmacist prior to use to ensure safety and avoid potential interactions.

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 a controlled temperature range of 20-25ºC (68-77ºF) to maintain its efficacy and stability. Proper storage conditions must be adhered to, ensuring that the product is kept within the specified temperature limits to prevent degradation.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for 8 Hr Muscle Aches and Pain, 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 8 Hr Muscle Aches and Pain, 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.