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Extra Strength

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Active ingredient
Calcium Carbonate 750 mg
Other brand names
Drug classes
Blood Coagulation Factor, Phosphate Binder
Dosage form
Tablet, Chewable
Route
Oral
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2021
Label revision date
December 4, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Calcium Carbonate 750 mg
Other brand names
Drug classes
Blood Coagulation Factor, Phosphate Binder
Dosage form
Tablet, Chewable
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2021
Label revision date
December 4, 2025
Manufacturer
CVS PHARMACY
Registration number
M001
NDC root
51316-021
Drug Information (PDF)
Prescribing information, PDF file
Packaging Info
Packaging & NDC Codes

If you are a healthcare professional or from the pharmaceutical industry please visit this version.

If you are a consumer or patient please visit this version.

Drug Overview

CVS Extra Strength Antacid is an over-the-counter medication in the form of chewable tablets that primarily contains calcium carbonate (750 mg). It is designed to provide fast relief from common digestive discomforts such as heartburn, sour stomach, acid indigestion, and upset stomach associated with these symptoms.

This antacid works by neutralizing stomach acid, helping to alleviate the discomfort you may experience after eating or during episodes of acid-related issues. With 96 chewable tablets in each package, it offers a convenient option for managing occasional digestive troubles.

Uses

If you're experiencing discomfort from heartburn, a sour stomach, or acid indigestion, this medication can help relieve those symptoms. It’s also effective for soothing an upset stomach that comes along with these issues.

You can feel confident using this medication, as there are no known teratogenic effects (which means it doesn't cause birth defects) associated with it. Enjoy relief from your stomach discomfort and get back to feeling your best.

Dosage and Administration

If you are an adult or a child aged 12 years and older, you should chew 2 to 4 tablets when you experience symptoms, or follow your doctor's instructions. It's important to remember that you should not swallow the tablets whole; they need to be chewed to work effectively.

Additionally, if your symptoms last longer than 2 weeks, you should consult with your doctor before continuing to take the medication. This ensures that you are using it safely and effectively.

What to Avoid

It's important to use this medication responsibly to ensure your safety. You should not take more than 10 tablets in a 24-hour period. If you are pregnant, limit your intake to no more than 6 tablets in the same timeframe. Additionally, avoid using the maximum dosage for more than 2 weeks unless your doctor has advised and is supervising you.

By following these guidelines, you can help prevent potential risks associated with misuse or overuse of the medication. Always consult with your healthcare provider if you have any questions or concerns about your treatment.

Side Effects

When using this product, it's important to be aware of potential side effects and interactions. You should consult with a doctor or pharmacist if you are currently taking any prescription medications, as antacids can interact with them. It's also crucial not to exceed 10 tablets in a 24-hour period, and if you are pregnant, limit your intake to no more than 6 tablets in the same timeframe. Avoid using the maximum dosage for more than two weeks unless directed by a healthcare professional.

Additionally, keep this product out of reach of children to ensure their safety.

Warnings and Precautions

Before using this product, it's important to consult with your doctor or pharmacist, especially if you are currently taking any prescription medications, as antacids can interact with certain drugs.

While using this product, please follow these precautions: do not exceed 10 tablets in a 24-hour period, and if you are pregnant, limit your intake to no more than 6 tablets in 24 hours. Additionally, avoid using the maximum dosage for more than 2 weeks unless directed by your doctor.

If you experience any unusual symptoms or have concerns while using this product, it's best to stop taking it and reach out to your healthcare provider for guidance.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, it's always important to be aware of the signs of an overdose, which can include symptoms like extreme drowsiness, confusion, or difficulty breathing. If you suspect an overdose, it’s crucial to seek immediate medical help.

In case of an emergency, call your local emergency number or go to the nearest hospital. Always keep medications out of reach of children and follow the prescribed dosage to prevent any potential risks. If you have any concerns or questions about your medication, don’t hesitate to reach out to your healthcare provider for guidance.

Pregnancy Use

If you are pregnant, it’s important to be cautious with medication. You should not take more than 6 tablets in a 24-hour period. Additionally, avoid using the maximum dosage for more than 2 weeks unless your doctor has advised you to do so and is supervising your treatment. Always consult with your healthcare provider before taking any medication during pregnancy to ensure the safety of you and your baby.

Lactation Use

If you are breastfeeding, you can feel reassured that there are no specific warnings or recommendations regarding the use of this product while nursing. This means that, based on the information available, it is considered safe for you to use without concerns about potential effects on your milk production or the nursing infant.

Additionally, there are no indications that this product is excreted in breast milk, which further supports its safety during lactation. Always consult with your healthcare provider if you have any questions or concerns about medications while breastfeeding.

Pediatric Use

It's important to keep this medication out of reach of children to ensure their safety. For adults and children aged 12 years and older, the recommended use is to chew 2 to 4 tablets when symptoms occur, or as directed by a doctor. Please remember that the tablets should not be swallowed whole; they need to be chewed to be effective. Always consult with a healthcare professional if you have any questions 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 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 important to have open conversations with your healthcare provider about any medications or tests you may be taking. While there are no specific drug interactions or laboratory test interactions noted for this medication, your healthcare provider can help ensure that everything you are taking works well together and is safe for you.

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

Storage and Handling

To ensure the best performance of your product, store it at room temperature and always keep the container tightly closed. This helps maintain its effectiveness and safety.

Before using, check the printed seal under the cap. If it is torn or missing, do not use the product, as this could indicate that it has been compromised. Following these simple guidelines will help you use the product safely and effectively.

Additional Information

You should take this medication orally and be mindful of how much you use. It's important not to exceed 10 tablets in a 24-hour period. If you are pregnant, limit your intake to no more than 6 tablets in 24 hours. Additionally, avoid using the maximum dosage for more than 2 weeks unless your doctor advises you to do so.

Before starting this medication, consult with your doctor or pharmacist, especially if you are currently taking any prescription drugs, as antacids can interact with certain medications. If your symptoms last longer than 2 weeks, seek medical advice before continuing use.

FAQ

What is CVS Extra Strength Antacid?

CVS Extra Strength Antacid is an antacid tablet that contains 750 mg of calcium carbonate and is designed to relieve heartburn, sour stomach, acid indigestion, and upset stomach.

How should I take CVS Extra Strength Antacid?

Adults and children 12 years of age and over should chew 2-4 tablets as symptoms occur, or as directed by a doctor. Do not swallow the tablets whole.

What is the maximum dosage for CVS Extra Strength Antacid?

You should not take more than 10 tablets in 24 hours. If you are pregnant, do not take more than 6 tablets in 24 hours.

Can I use CVS Extra Strength Antacid for more than 2 weeks?

You should not use the maximum dosage for more than 2 weeks unless advised and supervised by a doctor.

Are there any contraindications for CVS Extra Strength Antacid?

No specific contraindications are mentioned for CVS Extra Strength Antacid.

What should I do if I am taking other medications?

Ask a doctor or pharmacist before use if you are presently taking a prescription drug, as antacids may interact with certain medications.

Is CVS Extra Strength Antacid safe during pregnancy?

While there are no teratogenic effects mentioned, pregnant women should not take more than 6 tablets in 24 hours.

How should I store CVS Extra Strength Antacid?

Store CVS Extra Strength Antacid at room temperature and keep the container tightly closed. Do not use if the printed seal under the cap is torn or missing.

What are the key benefits of CVS Extra Strength Antacid?

CVS Extra Strength Antacid provides fast relief from upset stomach, heartburn, and acid indigestion, and is gluten-free.

What should I do if symptoms persist?

Do not take CVS Extra Strength Antacid for symptoms that persist for more than 2 weeks unless advised by a doctor.

Packaging Info

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

Packaging configurations for Extra Strength.
Details

Drug Information (PDF)

This file contains official product information for Extra Strength, 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 heartburn, sour stomach, acid indigestion, and upset stomach associated with these symptoms.

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

Dosage and Administration

Adults and children aged 12 years and older are instructed to chew 2 to 4 tablets as symptoms occur, or as directed by a healthcare professional. It is important that the tablets are not swallowed whole.

Patients should refrain from using this medication for symptoms that persist for more than 2 weeks unless advised by a healthcare provider.

Contraindications

Use of this product is contraindicated in the following situations:

Exceeding the recommended dosage of more than 10 tablets within a 24-hour period is contraindicated due to the potential for adverse effects. In pregnant individuals, the use of more than 6 tablets in a 24-hour period is contraindicated to avoid risks to the fetus. Additionally, the maximum dosage should not be used for more than 2 weeks unless under the advice and supervision of a healthcare professional, as prolonged use may lead to complications.

Warnings and Precautions

Healthcare professionals should advise patients to consult a doctor or pharmacist prior to using this product if they are currently taking any prescription medications, as antacids may interact with certain drugs.

When utilizing this product, it is crucial to adhere to the following precautions: patients should not exceed a maximum dosage of 10 tablets within a 24-hour period. For pregnant individuals, the dosage should not exceed 6 tablets in a 24-hour timeframe. Additionally, the maximum dosage should not be used for more than 2 weeks unless directed and monitored by a healthcare provider.

There are no specific laboratory tests recommended for monitoring the use of this product.

Side Effects

Patients should be aware of the potential adverse reactions associated with this product. It is important to consult a doctor or pharmacist before use, particularly if the patient is currently taking a prescription drug, as antacids may interact with certain medications.

When using this product, patients are advised not to exceed a dosage of 10 tablets within a 24-hour period. For pregnant individuals, the maximum recommended dosage is limited to 6 tablets in 24 hours. Additionally, patients should not use the maximum dosage for more than 2 weeks unless under the guidance and supervision of a healthcare professional.

To ensure safety, this product should be kept out of reach of children.

Drug Interactions

There are currently no documented drug interactions associated with this medication. Additionally, there is no information available regarding interactions with laboratory tests. As such, no specific recommendations for dosage adjustments or monitoring are warranted at this time.

Packaging & NDC

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

Packaging configurations for Extra Strength.
Details

Pediatric Use

Pediatric patients should be kept out of reach of children. For children aged 12 years and older, the recommended dosage is to chew 2-4 tablets as symptoms occur or as directed by a healthcare professional. It is important to note that tablets should not be swallowed whole.

Geriatric Use

There is no specific information 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 should not exceed a dosage of 6 tablets within a 24-hour period. Additionally, the maximum dosage should not be used for more than 2 weeks unless under the advice and supervision of a healthcare professional. It is important for healthcare providers to consider these dosage limitations when prescribing this medication to pregnant patients, as prolonged use or exceeding recommended dosages may pose risks to fetal outcomes. Careful monitoring and consultation are advised to ensure the safety of both the patient and the developing fetus.

Lactation

There are no specific warnings or recommendations regarding the use of this product by lactating mothers. Additionally, there is no information available concerning the potential for excretion in breast milk or its effects on breastfed infants.

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 have not been specifically studied in relation to the use of this medication. Consequently, there are no established dosage adjustments, special monitoring requirements, or precautions outlined for individuals with compromised liver function. It is recommended that healthcare providers exercise caution when prescribing this medication to patients with hepatic impairment, given the lack of data on its safety and efficacy in this population. Regular monitoring of liver function may be prudent in these cases, although specific parameters are not defined in the available information.

Overdosage

In the absence of specific overdosage information, it is essential for healthcare professionals to remain vigilant regarding the potential for overdose with this medication. In cases where an overdose is suspected, immediate medical attention should be sought.

Healthcare providers are advised to monitor patients closely for any signs or symptoms that may indicate an overdose. These may include, but are not limited to, increased severity of known side effects, unusual behavioral changes, or any other atypical clinical manifestations.

Management of an overdose should be guided by the clinical presentation of the patient. Supportive care is paramount, and symptomatic treatment should be initiated as necessary. It is recommended that healthcare professionals consult local poison control centers or relevant toxicology resources for specific guidance on the management of overdose cases.

In summary, while specific overdosage information is not available, healthcare professionals should exercise caution, remain observant for potential overdose symptoms, and implement appropriate management strategies as needed.

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

No postmarketing experience details are available in the insert text.

Patient Counseling

Healthcare providers should advise patients to keep the medication out of reach of children to prevent accidental ingestion. It is important to inform patients not to exceed a dosage of 10 tablets within a 24-hour period. For pregnant patients, they should be cautioned to limit their intake to no more than 6 tablets in a 24-hour period.

Providers should emphasize that the maximum dosage should not be used for more than 2 weeks unless directed and supervised by a healthcare professional. Additionally, patients should be encouraged to consult with their doctor or pharmacist before using this medication if they are currently taking any prescription drugs, as antacids may interact with certain medications.

Storage and Handling

The product is supplied in a container that must be kept tightly closed to maintain its integrity. It should be stored at room temperature, ensuring that it is protected from extreme temperatures.

Healthcare professionals are advised to inspect the product prior to use; it should not be used if the printed seal under the cap is torn or missing, as this may indicate that the product has been compromised.

Additional Clinical Information

The product is administered orally. Clinicians should advise patients to consult a doctor or pharmacist prior to use if they are currently taking any prescription medications, as antacids may interact with certain drugs. Patients are instructed not to exceed 10 tablets within a 24-hour period, and pregnant individuals should limit their intake to a maximum of 6 tablets in the same timeframe. The maximum dosage should not be used for more than 2 weeks unless under medical supervision. Additionally, patients should refrain from using the product for symptoms that persist beyond 2 weeks without consulting a healthcare professional.

Drug Information (PDF)

This file contains official product information for Extra Strength, 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 Extra Strength, retrieved by a validated AI data-extraction workflow.

All FDA-listed dosage forms and strengths are shown in the Packaging & NDC Codes section above. Regulatory status appears in the Summary Information panel above and was verified in the FDA National Drug Code directory and the NSDE NDC Directory daily file.

Note: an automated daemon monitors NSDE checksums; when the record for this NDC changes, the new file is pulled instantly and this page is refreshed.

No human clinician has reviewed this version.

Learn more in our Editorial Policy

Last AI update:

Primary FDA sources:

Orange Book data shown on this page are limited to Regulatory Status (Rx), Established Pharmacologic Class (EPC), and Mechanism of Action (MoA).

Regulatory data notice: Information on this page is reproduced verbatim from FDA public databases (NSDE, Orange Book, Purple Book, DailyMed SPL). NDA/ANDA drugs are FDA-approved, BLA biologics are FDA-licensed. Inclusion alone does not guarantee current market availability or imply FDA endorsement.

Medical disclaimer: This AI-generated content is provided for educational purposes only and does not constitute medical advice. Always consult a licensed healthcare professional for diagnosis or treatment decisions.