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Calcium carbonate

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Active ingredient
Calcium Carbonate 500 mg/1 g
Other brand names
Drug classes
Blood Coagulation Factor, Phosphate Binder
Dosage form
Tablet
Route
Oral
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2024
Label revision date
December 26, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Calcium Carbonate 500 mg/1 g
Other brand names
Drug classes
Blood Coagulation Factor, Phosphate Binder
Dosage form
Tablet
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 2024
Label revision date
December 26, 2025
Manufacturer
Xiamen Kang Zhongyuan Biotechnology Co. , Ltd.
Registration number
M001
NDC root
83698-002
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

You may be experiencing discomfort from heartburn, acid indigestion, sour stomach, or an upset stomach. This medication is designed to help relieve these symptoms, providing you with comfort and support when you need it most. It works by addressing the underlying causes of these digestive issues, helping to restore balance and ease your discomfort.

Uses

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

You can use this treatment to find relief from the discomfort associated with these digestive problems, allowing you to feel more at ease throughout your day.

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 with a doctor before continuing to take the medication. This ensures that you receive the appropriate care and guidance for your health.

What to Avoid

It's important to follow specific guidelines when using this medication to ensure your safety. You should not take the medication if the printed seal under the cap is torn or missing. Additionally, avoid taking more than 15 tablets in a 24-hour period, and if you are pregnant, limit your intake to no more than 5 tablets in the same timeframe.

For your safety, do not use the maximum dosage for more than 2 weeks unless your doctor has advised and is supervising you. Always prioritize your health and consult with a healthcare professional if you have any questions or concerns.

Side Effects

It's important to be aware that if you are currently taking any prescription medications, you should consult with your doctor or pharmacist before using this product. Antacids can interact with certain prescription drugs, which may affect how well they work or increase the risk of side effects.

Always prioritize your health by discussing any potential interactions with a healthcare professional to ensure safe and effective use of your medications.

Warnings and Precautions

Before using this medication, it's important to consult with your doctor or pharmacist, especially if you are currently taking any prescription drugs. Some antacids can interact with these medications, which may affect how well they work.

If a child accidentally ingests this medication, seek emergency medical help right away. It's crucial to act quickly in such situations to ensure their safety.

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 potential risks associated with taking any medication. If you suspect that you or someone else may have taken too much of a medication, look out for unusual symptoms such as extreme drowsiness, confusion, or difficulty breathing.

In the event of an overdose, it is crucial to seek immediate medical help. You can do this by calling your local emergency number or going to the nearest hospital. Always keep the medication packaging on hand, as it can provide important information to healthcare professionals. Remember, when in doubt, it's better to err on the side of caution and get help.

Pregnancy Use

If you are pregnant, it is important to be cautious with medication. You should not take more than 5 tablets in a 24-hour period. This guideline helps ensure your safety and the safety of your developing baby. Always consult with your healthcare provider before taking any medication during pregnancy to discuss potential risks and appropriate dosages.

Lactation Use

If you are breastfeeding or planning to breastfeed, it's important to consult your doctor before using this product. There is a possibility that the ingredients may pass into your breast milk, and the effects on your nursing infant have not been thoroughly studied. Therefore, exercising caution is recommended to ensure the safety and well-being of both you and your baby.

Pediatric Use

When using this medication for children, it's important to note that it is intended for adults and children aged 12 years and older. If your child is within this age range, they should chew 2 to 4 tablets completely when symptoms arise, or follow your doctor's instructions. Make sure they do not swallow the tablets whole, as this can affect how the medication works.

Always keep this medication out of reach of younger children. If a child accidentally ingests it, you should call emergency services right away. Your child's safety is the top priority, so be vigilant about proper usage and storage.

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 wise to discuss any potential risks or benefits with a healthcare provider. They can help determine the best course of action, considering any unique health needs or conditions.

Always keep in mind that older adults may have different responses to medications, so regular check-ins with your healthcare team are essential to ensure safety and effectiveness.

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 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 differently due to your liver health.

Always consult your healthcare provider for personalized advice and to discuss any concerns you may have regarding your liver function and how it relates to your treatment. They can help ensure that your medication is safe and effective for you.

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. It's important to keep the container tightly closed when not in use to protect its contents from contamination and maintain its effectiveness.

By following these simple storage guidelines, you can help ensure the product remains safe and ready for use whenever you need it.

Additional Information

No further information is available.

FAQ

What symptoms is this drug used to treat?

This drug is indicated for heartburn, acid indigestion, sour stomach, and upset stomach associated with these symptoms.

How should adults and children 12 years and older take this drug?

You should chew 2-4 tablets completely as symptoms occur, or as directed by a doctor. Do not swallow the tablets whole.

What should I do if my symptoms persist?

Do not take this drug for symptoms that persist for more than 2 weeks unless advised by a doctor.

Are there any contraindications for this drug?

No contraindications are listed for this drug.

What precautions should I take if I am pregnant?

If you are pregnant, do not take more than 5 tablets in 24 hours.

What should nursing mothers do before using this product?

Nursing mothers should consult a doctor before using this product, as there is potential for excretion in breast milk.

What should I do if a child ingests this drug?

If a child ingests it, call emergency services immediately.

What should I do if the printed seal under the cap is torn or missing?

Do not take the drug if the printed seal under the cap is torn or missing.

Can this drug interact with other medications?

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

How should I store this drug?

Store at room temperature and keep the container tightly closed.

Packaging Info

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

Packaging configurations for Antacid.
Details

Drug Information (PDF)

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

There are no teratogenic or nonteratogenic effects mentioned in the available data.

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 essential 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 is contraindicated in the following situations:

  • If the printed seal under the cap is torn or missing, as this may indicate tampering or contamination.

  • Patients should not exceed a dosage of 15 tablets within a 24-hour period to avoid potential adverse effects.

  • Pregnant individuals should not take more than 5 tablets in a 24-hour period due to potential risks to the fetus.

  • The maximum dosage should not be used for more than 2 weeks unless advised and supervised by a healthcare professional to prevent complications associated with prolonged use.

Warnings and Precautions

Patients should consult a healthcare professional, such as a doctor or pharmacist, prior to using this medication if they are currently taking any prescription drugs. It is important to note that antacids may interact with certain prescription medications, potentially affecting their efficacy or safety.

In the event of accidental ingestion by a child, immediate medical assistance should be sought. Emergency services must be contacted without delay to ensure the child's safety and well-being.

While no specific instructions are provided regarding when to discontinue use, patients are advised to remain vigilant for any adverse effects and to contact their healthcare provider if they have concerns regarding their treatment.

Side Effects

Patients should be advised to consult a doctor or pharmacist prior to using this medication if they are currently taking any prescription drugs. There is a potential for interactions between antacids and certain prescription medications, which may lead to adverse reactions. It is important for patients to disclose their complete medication history to ensure safe and effective use of this product.

Drug Interactions

There are currently no documented drug interactions associated with the use of 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 Antacid. Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Antacid.
Details

Pediatric Use

Pediatric patients aged 12 years and older are advised to chew 2-4 tablets completely as symptoms occur, or as directed by a healthcare professional. It is important that the tablets are not swallowed whole.

Care should be taken to keep the medication out of reach of younger children. In the event of accidental ingestion by a child, emergency services should be contacted immediately.

Geriatric Use

There is no specific information available regarding the use of this medication in geriatric patients, including dosage adjustments, safety concerns, or special precautions. Healthcare providers should exercise caution when prescribing this medication to elderly patients, as individual responses may vary. It is advisable to monitor these patients closely for any adverse effects or changes in efficacy.

Pregnancy

Pregnant patients should not exceed a dosage of 5 tablets within a 24-hour period. This limitation is crucial to minimize potential risks to fetal outcomes. Healthcare professionals are advised to counsel women of childbearing potential regarding the importance of adhering to this dosage recommendation during pregnancy to ensure the safety of both the mother and the developing fetus.

Lactation

Lactating mothers should consult a doctor before using this product. There is a potential for excretion in breast milk, and the effects on the nursing infant are not well studied; therefore, caution is advised.

Renal Impairment

There is no specific information available regarding dosage adjustments, special monitoring, or safety considerations for patients with renal impairment. Healthcare professionals should exercise caution when prescribing to patients with reduced kidney function, as the absence of detailed guidance necessitates careful clinical judgment. Regular monitoring of renal function may be advisable in 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 and prepared for potential scenarios involving overdose.

Healthcare providers should be aware that the clinical presentation of an overdose may vary depending on the substance involved and the individual patient’s characteristics. Symptoms of overdose can range from mild to severe and may include altered mental status, cardiovascular instability, respiratory distress, and gastrointestinal disturbances.

In the event of suspected overdosage, immediate medical evaluation is recommended. Healthcare professionals should assess the patient's vital signs and conduct a thorough clinical examination. Supportive care should be initiated as necessary, including airway management, oxygen supplementation, and intravenous fluids.

If the specific agent involved in the overdose is known, appropriate antidotes or treatments should be administered as per established guidelines. Continuous monitoring of the patient’s condition is crucial, and further interventions may be required based on the evolving clinical picture.

It is advisable for healthcare professionals to consult local poison control centers or toxicology experts for guidance on management strategies tailored to the specific circumstances of the overdose.

Nonclinical Toxicology

If taken during pregnancy, it is advised that no more than five tablets be consumed within a 24-hour period to mitigate potential teratogenic effects. No information regarding non-teratogenic effects is available in the insert. Additionally, there is no data provided concerning nonclinical toxicology or animal pharmacology and toxicology.

Postmarketing Experience

No postmarketing experience details are available in the insert.

Patient Counseling

Healthcare providers should advise patients to seek immediate medical attention by calling emergency services if a child accidentally ingests the medication. It is important to inform patients to check the product packaging and to avoid using the medication if the printed seal under the cap is torn or missing, as this may indicate tampering.

Patients should be counseled on the importance of adhering to the recommended dosage guidelines. They should not exceed 15 tablets within a 24-hour period. Additionally, pregnant patients should be cautioned to limit their intake to no more than 5 tablets in a 24-hour period to ensure safety for both the mother and the developing fetus.

Furthermore, healthcare providers should emphasize that the maximum dosage should not be used for more than 2 weeks unless specifically advised and supervised by a doctor. This is crucial to prevent potential adverse effects associated with prolonged high-dose usage.

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 stability and efficacy.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for Antacid, 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, 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.