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Antacid Regular Strength

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Active ingredient
Calcium Carbonate 500 mg
Other brand names
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 2017
Label revision date
November 25, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Calcium Carbonate 500 mg
Other brand names
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 2017
Label revision date
November 25, 2025
Manufacturer
WALGREEN CO.
Registration number
M001
NDC root
0363-0317
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

Walgreens Antacid Tablets 500 are chewable tablets that contain calcium carbonate (500 mg) as their active ingredient. These tablets are designed to provide relief from common digestive discomforts, including heartburn, acid indigestion, sour stomach, and upset stomach associated with these symptoms.

With a regular strength and a pleasant peppermint flavor, these antacid tablets are a convenient option for managing occasional digestive issues. They are pharmacist recommended and come with a satisfaction guarantee, ensuring you can feel confident in their effectiveness.

Uses

If you're experiencing discomfort from heartburn, acid indigestion, or a sour stomach, this medication can help relieve those symptoms. It is also effective for soothing an upset stomach that may be associated 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) or nonteratogenic effects reported. This makes it a safe option for managing your digestive discomfort.

Dosage and Administration

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

Be mindful that if your symptoms last longer than 2 weeks, you should consult your doctor before continuing to take the medication. This ensures that you receive the appropriate care and guidance for your health.

What to Avoid

You can feel confident using this medication, as there are no specific contraindications (conditions that would prevent you from taking it) or concerns about abuse, misuse, or dependence (a condition where your body becomes reliant on a substance). Additionally, there are no particular instructions indicating that you should avoid taking or using this medication under any circumstances. Always remember to follow your healthcare provider's guidance for the best results.

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 to follow dosage guidelines: do not exceed 15 tablets in a 24-hour period, and if you are pregnant, limit your intake to no more than 10 tablets in the same timeframe. Additionally, avoid using the maximum dosage for more than two weeks unless directed by a healthcare professional.

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 them. Be mindful of the dosage: do not exceed 15 tablets in a 24-hour period, and if you are pregnant, limit your intake to no more than 10 tablets in 24 hours. Additionally, avoid using the maximum dosage for more than two weeks unless directed by your doctor.

If you experience any unusual symptoms or have concerns while using this product, stop taking it and reach out to your doctor for guidance. Always prioritize your health and safety by following these recommendations closely.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, it's important to remember that if you suspect an overdose, you should seek medical help immediately. Signs of an overdose can vary, but they may include unusual symptoms or worsening of your condition.

If you or someone you know may have taken too much of this medication, contact your healthcare provider or local emergency services right away. It's always better to be safe and get professional advice in such situations.

Pregnancy Use

If you are pregnant, it is important to be cautious with medication. You should not take more than 10 tablets in a 24-hour period. Always consult with your healthcare provider before taking any medication to ensure it is safe for you and your baby. Your health and the health of your baby are the top priority, so make sure to follow these guidelines closely.

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. Additionally, the information available does not indicate any concerns about the product being present in breast milk or any risks to your infant. 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 dosage is to chew 2 to 4 tablets completely when symptoms occur, or as directed by a doctor.

If you have younger children, please consult with a healthcare professional for guidance, as this medication is not specifically recommended for them. Always prioritize safety and follow the instructions provided by your doctor.

Geriatric Use

While there is no specific information about how this medication should be used by older adults, it’s important to approach any new treatment with caution. Since older adults may have different health needs and may be taking multiple medications, it’s always a good idea to consult with a healthcare provider before starting any new medication. They can help ensure that the treatment is safe and appropriate for your individual health situation.

If you or a loved one is an older adult, be sure to discuss any concerns or questions with your doctor, especially regarding potential interactions with other medications or existing health conditions.

Renal Impairment

If you have kidney problems, it's important to know that there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that the usual recommendations for monitoring or safety considerations related to renal impairment (kidney issues) are not provided.

Always consult your healthcare provider for personalized advice and to ensure that any medications you take are safe and appropriate for your kidney health. They can help you understand how your condition may affect your treatment plan.

Hepatic Impairment

If you have liver problems, it's important to know that the information provided does not include specific guidelines for dosage adjustments, special monitoring, or precautions related to your condition. This means that there are no tailored recommendations for how the medication may affect you differently due to your liver health.

Always consult your healthcare provider for personalized advice and to ensure that any treatment plan is safe and effective for your specific situation. They can help determine the best approach based on your liver function and overall health.

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 share your complete list of medications and any health conditions you have to receive the best care possible.

Storage and Handling

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

Before using, always check the safety seal under the cap. If the seal is torn or missing, do not use the product, as this indicates it may not be safe. Following these simple guidelines will help you use the product safely and effectively.

Additional Information

You will take this medication orally. There are no additional details available regarding laboratory tests, abuse potential, patient counseling, or postmarketing experiences. If you have any questions or concerns about your treatment, be sure to discuss them with your healthcare provider.

FAQ

What is Walgreens Antacid Tablets 500 used for?

Walgreens Antacid Tablets 500 are used to relieve heartburn, acid indigestion, sour stomach, and upset stomach associated with these symptoms.

What is the active ingredient in Walgreens Antacid Tablets 500?

The active ingredient is calcium carbonate, which is present at a strength of 500 mg per tablet.

How should I take Walgreens Antacid Tablets 500?

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

Are there any warnings associated with Walgreens Antacid Tablets 500?

Yes, you should ask a doctor or pharmacist before use if you are taking a prescription drug, as antacids may interact with certain medications. Do not exceed 15 tablets in 24 hours.

What should I do if I am pregnant and want to use Walgreens Antacid Tablets 500?

If you are pregnant, do not take more than 10 tablets in 24 hours and consult your doctor for advice.

Is there a satisfaction guarantee for Walgreens Antacid Tablets 500?

Yes, Walgreens offers a 100% satisfaction guarantee on this product.

Where is Walgreens Antacid Tablets 500 distributed?

The product is distributed by Walgreen Co., located at 200 Wilmot Rd., Deerfield, IL 60015.

How should I store Walgreens Antacid Tablets 500?

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

Packaging Info

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

Packaging configurations for Antacid Regular Strength.
Details

Drug Information (PDF)

This file contains official product information for Antacid Regular Strength, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Description

Calcium carbonate is presented as an antacid in a dosage form of 500 mg per chewable tablet. The product is flavored with peppermint and is packaged in a container containing 150 chewable tablets.

Uses and Indications

This drug is indicated for the relief of heartburn, acid indigestion, and sour stomach. It is also effective in alleviating 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 completely as symptoms occur, or as directed by a healthcare professional. It is important to note that the tablets should not be 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

There are no contraindications listed for this product. It is important to evaluate each patient's individual circumstances and medical history when considering its use.

Warnings and Precautions

Patients should consult a healthcare professional, such as 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 imperative to adhere to the following dosage guidelines: do not exceed 15 tablets within a 24-hour period. For pregnant individuals, the maximum dosage should not exceed 10 tablets in a 24-hour timeframe. Furthermore, the maximum dosage should not be used for more than 2 weeks unless directed and monitored by a healthcare provider.

Healthcare professionals are advised to remain vigilant regarding these warnings to ensure safe and effective use of the product.

Side Effects

Patients should be aware of potential adverse reactions associated with the use of this product. It is important to consult a healthcare professional before use, especially for individuals currently taking prescription medications, as antacids may interact with certain drugs.

When using this product, patients are advised not to exceed a dosage of 15 tablets within a 24-hour period. For pregnant individuals, the maximum recommended dosage is limited to 10 tablets in 24 hours. Additionally, the maximum dosage should not be utilized for more than 2 weeks unless under the guidance and supervision of a healthcare provider.

These precautions are essential to minimize the risk of adverse reactions and ensure safe use of the product.

Drug Interactions

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

Packaging & NDC

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

Packaging configurations for Antacid Regular Strength.
Details

Pediatric Use

Pediatric patients should be kept out of reach of children. For those aged 12 years and older, the recommended dosage is to chew 2-4 tablets completely as symptoms occur, or as directed by a healthcare professional.

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 be advised not to exceed a dosage of 10 tablets within a 24-hour period. This precaution is essential to minimize potential risks to fetal outcomes. Healthcare professionals should carefully evaluate the benefits and risks of treatment in pregnant patients, considering the limited data available regarding the safety of this medication during pregnancy. It is recommended that women of childbearing potential discuss their pregnancy status and any potential risks with their healthcare provider before initiating treatment.

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 any associated risks to breastfed infants.

Renal Impairment

Patients with renal impairment have no specific information regarding dosage adjustments, special monitoring, or safety considerations provided in the text. Therefore, healthcare professionals should exercise caution and consider individual patient factors when prescribing to this population. Regular assessment of renal function may be warranted to ensure safe and effective use of the medication in patients with reduced kidney function.

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 and prepared for potential scenarios involving excessive administration of the medication.

Should an overdosage occur, it is recommended that healthcare providers assess the patient’s clinical status and monitor for any adverse effects. Symptoms of overdosage may vary depending on the medication involved and the individual patient's response.

Management procedures should include supportive care, which may involve symptomatic treatment and monitoring of vital signs. In cases where the specific antidote or treatment protocol is known, it should be administered as per established guidelines.

Healthcare professionals are encouraged to consult local poison control centers or relevant medical literature for guidance on managing suspected overdosage cases 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 use of the compound in question. Further studies may be necessary to elucidate these aspects of nonclinical toxicology.

Postmarketing Experience

No postmarketing experience details are available in the insert text.

Patient Counseling

Healthcare providers should advise patients to keep this medication out of reach of children to prevent accidental ingestion or misuse. It is important to emphasize the necessity of proper storage to ensure the safety of young individuals.

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 to ensure optimal conditions. Additionally, the product features a safety seal; it is imperative not to use the product if the printed seal under the cap is torn or missing, as this may indicate a compromise in safety or efficacy.

Additional Clinical Information

The medication is administered orally. There are no additional details available regarding laboratory tests, abuse information, patient counseling, or postmarketing experience.

Drug Information (PDF)

This file contains official product information for Antacid Regular 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 Antacid Regular 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.