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Calcium carbonate

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Active ingredient
Calcium Carbonate 420 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 2000
Label revision date
February 28, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Calcium Carbonate 420 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 2000
Label revision date
February 28, 2025
Manufacturer
Allegiant Health
Registration number
M001
NDC root
69168-036
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

Calcium Carbonate 420mg is a medication commonly used to relieve discomfort from heartburn, sour stomach, acid indigestion, and upset stomach caused by these symptoms. It works by neutralizing stomach acid, providing quick relief from the burning sensation and discomfort associated with excess acidity in the stomach.

If you're experiencing these symptoms, Calcium Carbonate can be a helpful option to consider for easing your discomfort and restoring a sense of well-being. Always consult with a healthcare professional if you have any questions or concerns about using this medication.

Uses

If you're experiencing discomfort from heartburn, sour stomach, or acid indigestion, this medication can help relieve those symptoms. It’s also effective for soothing an upset stomach that arises from 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. This makes it a safer option for those who may be concerned about such risks.

Dosage and Administration

When you experience symptoms that require relief, you can take 2 tablets by chewing them. It's important to do this every 2 to 3 hours, or as your symptoms arise. If you find that your symptoms persist, you can repeat this dosage every hour, but only if needed. Always listen to your body and adjust your intake based on how you feel.

What to Avoid

It's important to use this product safely to avoid potential issues. You should not take more than 19 tablets within a 24-hour period, and you should not use the maximum dosage for more than two weeks unless your doctor advises you to do so. If your symptoms continue for more than two weeks, please stop using the product and consult your doctor for further guidance.

By following these instructions, you can help ensure your safety and well-being while using this medication.

Side Effects

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

While using this product, do not exceed 19 tablets in a 24-hour period, and avoid using the maximum dosage for more than two weeks unless directed by a healthcare professional. If your symptoms continue for more than two weeks, please stop using the product and seek medical advice. Always keep this medication out of reach of children.

Warnings and Precautions

Before using this product, it’s important to consult with your doctor or pharmacist if you have kidney disease or are taking any prescription medications, as there may be interactions.

Be cautious not to exceed 19 tablets in a 24-hour period, and avoid using the maximum dosage for more than two weeks unless directed by a healthcare professional. If your symptoms last longer than two weeks, stop using the product and reach out to your doctor for further guidance.

Overdose

Taking more than 19 tablets in a 24-hour period or using the maximum dosage of this product for more than two weeks can lead to serious health risks. If you find that your symptoms last longer than two weeks, it’s important to stop using the product and consult a doctor for further guidance.

If you suspect an overdose, look out for signs such as unusual drowsiness, confusion, or difficulty breathing. In such cases, seek immediate medical help. Always prioritize your health and safety by following dosage instructions carefully and consulting a healthcare professional if you have any concerns.

Pregnancy Use

If you are pregnant or planning to become pregnant, it's important to be aware that there is no specific information available regarding the use of this medication during pregnancy. This means that safety concerns, dosage adjustments, or any special precautions have not been established.

Before taking this medication, you should consult with your healthcare provider to discuss any potential risks and to ensure that you are making informed decisions for your health and the health of your baby. Always prioritize open communication with your doctor about any medications you are considering during pregnancy.

Lactation Use

If you are breastfeeding, it's important to talk to your doctor before using this product. There is a possibility that it can be passed 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

It's important to keep this medication out of reach of children. This precaution helps prevent accidental ingestion, which can be dangerous. Always store it in a safe place where children cannot access it, ensuring their safety at all times. If you have any concerns or questions about the medication, don't hesitate to reach out to your healthcare provider for guidance.

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. Since older adults may have different health needs and responses to medications, you should always consult with a healthcare provider before starting any new medication. They can help determine the right dosage and monitor for any potential side effects, ensuring that the treatment is safe and effective for you or your loved one.

Renal Impairment

If you have kidney disease, it's important to consult with your doctor or pharmacist before using this medication. They can provide guidance on whether it's safe for you and if any adjustments to your dosage are necessary. Your healthcare team will help ensure that your treatment is both effective and safe, taking your kidney health into account.

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 be aware that antacids, which are commonly used to relieve heartburn and indigestion, can interact with some prescription medications. This means that taking antacids at the same time as certain drugs may affect how well those medications work.

To ensure your safety and the effectiveness of your treatments, always discuss any medications, including over-the-counter products like antacids, with your healthcare provider. They can help you understand potential interactions and adjust your treatment plan if necessary.

Storage and Handling

To ensure the best performance and safety of your product, store it in a cool, dry place at a temperature between 15° and 30°C (59° and 86°F). This temperature range helps maintain the product's effectiveness.

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

Additional Information

You can take this medication orally by chewing 2 tablets every 2 to 3 hours as needed for symptoms. If your symptoms persist, you may repeat the dose hourly. Always follow the guidance provided by your healthcare provider regarding the use of this medication.

FAQ

What is Calcium Carbonate used for?

Calcium Carbonate is used to relieve heartburn, sour stomach, acid indigestion, and upset stomach due to these symptoms.

How should I take Calcium Carbonate?

You should chew 2 tablets every 2-3 hours or as symptoms occur, and you can repeat hourly if needed.

What is the maximum dosage for Calcium Carbonate?

Do not take more than 19 tablets in a 24-hour period, and do not use the maximum dosage for more than two weeks without a doctor's advice.

What should I do if my symptoms persist?

If your symptoms persist for more than two weeks, stop using Calcium Carbonate and see a doctor.

Are there any warnings for using Calcium Carbonate?

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

Is Calcium Carbonate safe during pregnancy?

There is no specific information regarding the safety of Calcium Carbonate during pregnancy, so consult your doctor before use.

Can nursing mothers use Calcium Carbonate?

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

How should I store Calcium Carbonate?

Store Calcium Carbonate at 15°-30°C (59°-86°F) and do not use it if the safety seal under the cap is broken or missing.

What should I do if I accidentally take too much Calcium Carbonate?

If you suspect an overdose, seek medical attention immediately.

Is there any information about Calcium Carbonate for children?

Keep Calcium Carbonate out of reach of children, and consult a doctor for use in pediatric patients.

Packaging Info

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

Packaging configurations for Calcium Carbonate.
Details

Drug Information (PDF)

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

View product document (PDF)

Description

Calcium Carbonate is a chemical compound with the molecular formula CaCO₃. Each dosage unit contains 420 mg of Calcium Carbonate. This compound is commonly utilized as a dietary supplement and antacid. It appears as a white, odorless powder or crystalline solid.

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

Patients are advised to chew 2 tablets every 2 to 3 hours as needed for symptom relief. If symptoms persist, the dosage may be repeated hourly. It is important to monitor the patient's response and adjust the frequency of administration accordingly, ensuring that the maximum recommended dosage is not exceeded.

Contraindications

Use of this product is contraindicated in patients who exceed the maximum dosage of 19 tablets within a 24-hour period or utilize the maximum dosage for more than two weeks without the advice and supervision of a healthcare professional. If symptoms persist beyond two weeks, discontinuation of the product is advised, and medical consultation should be sought.

Warnings and Precautions

Patients should consult a healthcare professional prior to use if they have a history of kidney disease or are currently taking prescription medications, as antacids may interact with certain drugs.

It is imperative to adhere to the recommended dosage guidelines. Patients must not exceed 19 tablets within a 24-hour period, nor should they utilize the maximum dosage of this product for longer than two weeks without the guidance and supervision of a physician. Should symptoms persist beyond the two-week mark, it is essential to discontinue use and seek medical advice.

Monitoring for any adverse effects or interactions is advised, particularly in individuals with pre-existing kidney conditions or those on concurrent prescription therapies.

Side Effects

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

While using this product, patients should adhere to the recommended dosage guidelines. Specifically, they should not exceed 19 tablets within a 24-hour period or use the maximum dosage for more than two weeks without the advice and supervision of a healthcare professional. If symptoms persist beyond two weeks, it is advised to discontinue use and consult a doctor.

Additionally, this product should be kept out of reach of children to prevent accidental ingestion.

Drug Interactions

Antacids may interact with various prescription medications, potentially affecting their absorption and efficacy. It is advisable to monitor the timing of antacid administration in relation to other medications to minimize these interactions. Specifically, antacids should be taken at least 2 hours apart from other drugs to ensure optimal therapeutic outcomes.

Packaging & NDC

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

Packaging configurations for Calcium Carbonate.
Details

Pediatric Use

Pediatric patients should be advised to keep this medication out of reach of children. It is essential to ensure that children do not have access to the medication to prevent accidental ingestion or misuse.

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

There is no specific information regarding the use of this medication during pregnancy, including safety concerns, dosage modifications, or special precautions. Healthcare professionals should consider the lack of data when prescribing this medication to pregnant patients. It is advisable to weigh the potential benefits against any unknown risks to fetal outcomes. Women of childbearing potential should be counseled on the importance of effective contraception during treatment and the need to inform their healthcare provider if they become pregnant or plan to become pregnant while on this medication.

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

Patients with renal impairment should consult a healthcare professional, such as a doctor or pharmacist, prior to use. This is particularly important for individuals with kidney disease, as reduced kidney function may necessitate specific dosing adjustments or monitoring to ensure safety and efficacy.

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 cases of overdosage, it is critical to adhere to the recommended dosage guidelines to prevent adverse effects. The maximum allowable dosage for this product is 19 tablets within a 24-hour period. Exceeding this limit can lead to significant health risks. Furthermore, the maximum dosage should not be utilized for more than two consecutive weeks unless under the guidance and supervision of a healthcare professional.

Should symptoms persist beyond the two-week mark, it is imperative to discontinue use of the product and seek medical advice promptly. This approach ensures that any potential complications arising from overdosage are addressed in a timely manner, safeguarding the patient's health and well-being.

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 not to exceed 19 tablets within a 24-hour period and to refrain from using the maximum dosage of this product for more than two weeks unless directed by a physician. It is important to inform patients that if their symptoms persist beyond two weeks, they should discontinue use and consult a doctor.

Patients should be encouraged to seek guidance from a healthcare professional or pharmacist prior to using this product if they have a history of kidney disease. Additionally, it is crucial to discuss the potential for interactions with prescription medications; patients should be advised to consult a doctor or pharmacist before use if they are currently taking any prescription drugs, as antacids may interact with certain medications.

Storage and Handling

The product is supplied in various package configurations, with specific NDC numbers available for identification. It should be stored at a temperature range of 15° to 30°C (59° to 86°F) to ensure optimal stability and efficacy.

Healthcare professionals are advised to inspect the product prior to use; it must not be utilized if the imprinted safety seal under the cap is broken or missing, as this may indicate compromised integrity. Proper handling and storage conditions are essential to maintain the quality of the product.

Additional Clinical Information

The medication is administered orally, with the recommended dosage being to chew 2 tablets every 2-3 hours as symptoms occur, and to repeat hourly if necessary. 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 Calcium Carbonate, 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 Calcium Carbonate, 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.