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Members Mark Arthritis Pain

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Active ingredient
Acetaminophen 650 mg
Other brand names
Dosage form
Tablet, Film Coated, Extended Release
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2025
Label revision date
December 23, 2025
Active ingredient
Acetaminophen 650 mg
Other brand names
Dosage form
Tablet, Film Coated, 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
December 23, 2025
Manufacturer
Sam's West Inc
Registration number
ANDA075077
NDC root
68196-611

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Drug Overview

Acetaminophen Extended-Release Tablets USP, 650 mg, are a type of pain reliever and fever reducer designed to provide temporary relief from minor aches and pains. This medication can help alleviate discomfort caused by various conditions, including arthritis, muscular aches, backaches, menstrual cramps, headaches, toothaches, and symptoms of the common cold. Additionally, it is effective in reducing fever.

These tablets are formulated to last for up to 8 hours, making them a convenient option for managing pain throughout the day. Each tablet contains 650 mg of acetaminophen, which works by blocking pain signals in the brain and reducing inflammation.

Uses

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

In addition to alleviating pain, this medication can temporarily reduce fever, helping you feel more comfortable when you're not feeling well.

Dosage and Administration

When you need to take this medication, adults 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.

If you are under 18 years old, it's essential to consult with a doctor before using 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 adverse reactions. Always prioritize your health and seek professional advice if you have any questions or concerns.

Side Effects

Taking this medication can lead to some serious side effects, particularly concerning your liver. You should avoid taking more than 6 caplets in a 24-hour period, using it alongside other products containing acetaminophen, or consuming 3 or more alcoholic drinks daily while on this medication, as these actions can significantly increase the risk of severe liver damage.

Additionally, be aware that acetaminophen may cause severe skin reactions, which can include symptoms like skin reddening, blisters, or rashes. If you experience any of these, stop using the product and seek medical help immediately. It's also important to consult a doctor if your pain worsens or lasts more than 10 days, if your fever persists for more than 3 days, or if you notice any new symptoms, redness, or swelling. If you have liver disease or are taking the blood thinner warfarin, talk to your doctor before using this medication. In case of an overdose, seek medical assistance right away, even if you don't notice any symptoms.

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 acetaminophen-containing medications, or consume 3 or more alcoholic drinks daily while using it. Be aware that acetaminophen may also cause serious skin reactions, such as redness, blisters, or rashes. If you experience any skin reactions, stop using the product and seek medical help immediately.

Before using this medication, consult your doctor if you have liver disease or are taking the blood thinner warfarin. If you suspect an overdose, it’s crucial to get emergency medical help or contact a Poison Control Center at 1-800-222-1222, even if you don’t notice any symptoms. Additionally, stop taking the product and call your doctor if your pain worsens or lasts more than 10 days, your fever worsens or lasts more than 3 days, you develop new symptoms, or if you notice redness or swelling, as these may indicate a serious condition.

Overdose

If you suspect an overdose, it’s important to seek medical help immediately. You can contact a Poison Control Center at 1-800-222-1222 for guidance. Quick action is crucial for both adults and children, even if you don’t see any signs or symptoms of an overdose.

Signs of an overdose can vary, but they may include unusual drowsiness, confusion, or difficulty breathing. If you notice any of these symptoms, don’t hesitate to get help right away. Remember, it’s always better to be safe and seek assistance if you have any concerns about an overdose.

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 your child is under 18 years old, it's important to consult with a doctor before using this medication. This ensures that the treatment is safe and appropriate for their specific age and health needs. Always prioritize your child's well-being by seeking professional guidance when it comes to their health care.

Geriatric Use

While there is no specific information available about the use of this medication in older adults, it’s important to approach any new treatment with caution. If you or a loved one is an older adult, it’s always a good idea to discuss any medications with a healthcare provider. They can help ensure that the treatment is safe and appropriate, considering any unique health needs or conditions.

Since there are no dosage adjustments or special precautions mentioned for elderly patients, your healthcare provider will be the best resource for personalized advice. They can monitor for any potential side effects and make recommendations based on individual health status.

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 health situation. They can help you understand how to manage your treatment effectively while considering your kidney health.

Hepatic Impairment

If you have liver disease, it’s important to consult your doctor before using this medication. Your healthcare provider can help determine if it’s safe for you and whether any adjustments to your dosage are necessary. Monitoring your liver function may also be required to ensure your safety while using this treatment. Always prioritize open communication with your healthcare team regarding your liver health.

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, which can be serious. Always keep your healthcare provider informed about all the medications you are taking to ensure your safety and the effectiveness of your treatment.

Storage and Handling

To ensure the best performance of your product, store it at a temperature between 20-25°C (68-77°F). This temperature range helps maintain its effectiveness and safety. Additionally, the product meets the requirements of the USP Dissolution Test 4, which is a standard used to assess how well a substance dissolves in a solution, ensuring quality and reliability.

When handling the product, always do so in a clean environment to avoid contamination. Make sure to follow any specific disposal instructions provided to ensure safe and responsible disposal. By adhering to these guidelines, you can help ensure the product remains safe and effective for use.

Additional Information

You should take this medication orally, with adults advised to take 2 caplets every 8 hours using water. It's important to swallow the caplets whole—do not crush, chew, split, or dissolve them. Make sure not to exceed 6 caplets in a 24-hour period and avoid using it for more than 10 days unless your doctor instructs you otherwise. If you are under 18 years old, consult a doctor before use.

If you are pregnant or breastfeeding, speak with a healthcare professional before taking this medication. 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, as prompt attention is crucial for both adults and children, even if no symptoms are apparent.

FAQ

What is Acetaminophen Extended-Release Tablets used for?

Acetaminophen Extended-Release Tablets are used to temporarily relieve minor aches and pains, including arthritis pain, muscular aches, backache, menstrual cramps, headaches, toothaches, and to reduce fever.

How should I take Acetaminophen Extended-Release Tablets?

You should take 2 caplets every 8 hours with water, swallowing them whole. Do not crush, chew, split, or dissolve the caplets.

What is the maximum dosage for Acetaminophen Extended-Release Tablets?

Do not take more than 6 caplets in 24 hours and do not use for more than 10 days unless directed by a doctor.

Are there any contraindications for using this medication?

Do not use Acetaminophen Extended-Release Tablets 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 an overdose?

In case of overdose, seek medical help or contact a Poison Control Center immediately at 1-800-222-1222.

What are the potential liver risks associated with this medication?

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

What should I do if I have a skin reaction?

If you experience severe skin reactions such as reddening, blisters, or rash, stop using the medication and seek medical help immediately.

Can I use Acetaminophen Extended-Release Tablets if I am pregnant or breastfeeding?

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

What should I do if my pain or fever worsens?

Stop using the medication and consult a doctor if your pain worsens or lasts more than 10 days, or if your fever worsens or lasts more than 3 days.

Packaging Info

Below are the non-prescription pack sizes of Members Mark Arthritis Pain (acetaminophen). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Members Mark Arthritis Pain.
Details

Drug Information (PDF)

This file contains official product information for Members Mark Arthritis Pain, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Description

ACETAMINOPHEN EXTENDED-RELEASE TABLETS USP are capsule-shaped tablets containing 650 mg of acetaminophen.

Uses and Indications

This drug is indicated for the temporary relief of minor aches and pains associated with various conditions, including minor pain of arthritis, muscular aches, backache, premenstrual and menstrual cramps, the common cold, headache, and toothache. 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 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 individuals under 18 years of age, it is recommended to consult a doctor prior to use.

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

This product contains acetaminophen, which carries a significant risk of severe liver damage if not used according to the guidelines. Healthcare professionals should advise patients that the maximum daily dosage is limited to 6 caplets within a 24-hour period. Patients must be cautioned against concurrent use with other medications containing acetaminophen, as this can exacerbate the risk of liver injury. Additionally, consumption of three or more alcoholic beverages daily while using this product may further increase the likelihood of liver damage.

Acetaminophen may also provoke severe skin reactions, which can manifest as skin reddening, blisters, or rash. In the event of any skin reaction, patients should be instructed to discontinue use immediately and seek medical assistance.

General precautions should be taken into account prior to use. Patients with a history of liver disease should consult a healthcare provider before using this product. Furthermore, individuals taking the anticoagulant warfarin should seek advice from a doctor or pharmacist before initiating treatment with acetaminophen.

In cases of overdose, it is imperative to obtain emergency medical help or contact a Poison Control Center immediately at 1-800-222-1222. Prompt medical attention is crucial for both adults and children, even in the absence of noticeable symptoms.

Patients should be advised to discontinue use and consult a healthcare professional if any of the following occur: worsening pain lasting more than 10 days, fever that worsens or persists for more than 3 days, the emergence of new symptoms, or the presence of redness or swelling. These signs may indicate a serious underlying condition that requires further evaluation.

Side Effects

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

Patients should be aware of the potential for severe skin reactions associated with acetaminophen, which may manifest as skin reddening, blisters, or rash. In the event of a skin reaction, it is imperative to discontinue use and seek medical assistance immediately.

Patients 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 three days, if new symptoms arise, or if redness or swelling is observed, as these may indicate a serious underlying condition.

Individuals with liver disease should consult a doctor prior to using this product. Additionally, patients taking the blood-thinning medication warfarin should seek advice from a healthcare provider or pharmacist before use.

In the case of an overdose, it is crucial to obtain medical help or contact a Poison Control Center immediately at 1-800-222-1222. Prompt medical attention is essential for both adults and children, even if no signs or symptoms are apparent.

Drug Interactions

Patients taking the anticoagulant warfarin should consult with a healthcare professional prior to using this medication. The interaction between this drug and warfarin may necessitate careful monitoring of coagulation parameters to ensure therapeutic efficacy and minimize the risk of adverse effects. Adjustments to the dosage of either medication may be required based on clinical judgment and patient response.

Packaging & NDC

Below are the non-prescription pack sizes of Members Mark Arthritis Pain (acetaminophen). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Members Mark Arthritis Pain.
Details

Pediatric Use

Pediatric patients under 18 years of age should consult a healthcare professional prior to use. It is important to assess the appropriateness of treatment and dosage for this population, as specific recommendations may vary based on individual health needs and conditions.

Geriatric Use

Elderly patients may not have specific information regarding the use of this medication, including dosage adjustments, safety concerns, or special precautions. Therefore, healthcare providers should exercise caution when prescribing this medication to geriatric patients. It is advisable to monitor these patients closely for any potential adverse effects or changes in 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 safe use during pregnancy and lactation.

Lactation

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

Renal Impairment

Patients with renal impairment have not been specifically addressed in the drug insert regarding dosage adjustments, special monitoring, or safety considerations. Therefore, healthcare professionals should exercise caution when prescribing this medication to individuals with reduced kidney function, as the absence of detailed guidance necessitates careful clinical judgment. Regular monitoring of renal function may be advisable in these patients to ensure safety and efficacy.

Hepatic Impairment

Patients with hepatic impairment should consult a healthcare professional prior to using this medication. It is essential for individuals with liver disease to receive appropriate guidance regarding the use of this product, as compromised liver function may affect the metabolism and clearance of the medication. Monitoring of liver function may be necessary to ensure safety and efficacy in this patient population.

Overdosage

In the event of an overdose, it is imperative to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222. Prompt medical intervention is crucial for both adults and children, even in the absence of noticeable signs or symptoms.

Healthcare professionals should be aware that the presentation of symptoms may vary, and vigilance is necessary to identify any potential adverse effects. The management of an overdose will depend on the specific substance involved and the clinical status of the patient. Therefore, it is essential to provide comprehensive information regarding the patient's condition to the medical team upon seeking help.

In summary, timely action and communication with medical professionals are vital in managing overdose situations effectively.

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

There have been reports of severe skin reactions associated with acetaminophen use, including symptoms such as skin reddening, blisters, and rash. In cases where a skin reaction occurs, it is advised to discontinue use and seek medical assistance promptly.

Patient Counseling

Healthcare providers should advise patients to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222 in the event of an overdose. It is crucial to emphasize that prompt medical attention is necessary 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. Similarly, they should stop use and seek medical advice if their fever worsens or lasts longer than 3 days. Patients should also be advised to stop using the medication and contact a healthcare professional 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 be encouraged to speak with a doctor or pharmacist prior to use to ensure safety and avoid potential interactions.

Storage and Handling

The product is supplied in compliance with the requirements of USP Dissolution Test 4. It should be stored at a temperature range of 20-25°C (68-77°F) to ensure optimal stability and efficacy. Proper storage conditions are essential for maintaining the integrity of the product throughout its shelf life.

Additional Clinical Information

The medication is administered orally, with specific guidelines for adults and patients under 18 years of age. Adults are instructed to take 2 caplets every 8 hours with water, swallowing them whole without crushing, chewing, splitting, or dissolving. The maximum dosage should not exceed 6 caplets in a 24-hour period, and use should not extend beyond 10 days unless directed by a healthcare professional. For individuals under 18, consultation with a doctor is advised prior to use.

Clinicians should counsel patients on important safety information, including the necessity of consulting a health professional if pregnant or breastfeeding. It is crucial to keep the medication out of reach of children. In the event of an overdose, immediate medical assistance should be sought, and patients are encouraged to contact a Poison Control Center at 1-800-222-1222, as prompt medical attention is essential for both adults and children, regardless of the presence of symptoms.

Drug Information (PDF)

This file contains official product information for Members Mark Arthritis 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 Members Mark Arthritis 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.