Symptom checker
Select audience type

Switch between content for healthcare professionals (PRO) and general audience (GEN).

ADD CONDITION

items per page

Drx Choice Antacid Calcium

Last content change checked dailysee data sync status

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 2018
Label revision date
September 26, 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 2018
Label revision date
September 26, 2025
Manufacturer
Raritan Pharmaceuticals Inc
Registration number
M001
NDC root
68163-101
Drug Information (PDF)
Prescribing information, PDF file
Packaging Info (2 NDCs)
Packaging & NDC Codes (2)

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

DRx CHOICE® is a regular strength antacid tablet that contains 500 mg of calcium carbonate. It is designed to provide fast relief from upset stomach, heartburn, acid indigestion, and sour stomach. These chewable tablets come in an assorted fruit flavor and are gluten-free, making them a convenient option for those seeking quick relief from digestive discomfort.

The active ingredients work by neutralizing stomach acid, which helps alleviate the symptoms associated with heartburn and indigestion. With a count of 60 tablets per package, DRx CHOICE® is a practical choice for managing occasional digestive issues.

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 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 follow specific guidelines when using this medication to ensure your safety. You should never take more than 15 tablets in a 24-hour period. 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 your doctor has advised and is supervising you.

Be mindful that exceeding these limits can lead to serious health risks, including dependence (a condition where your body becomes reliant on a substance) and potential misuse. Always prioritize your health by adhering to these recommendations.

Side Effects

When using this product, it's important to be aware of potential interactions with prescription medications, so consult your doctor or pharmacist if you're currently taking any. You should 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.

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

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, 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 the same timeframe. Additionally, avoid using the maximum dosage for more than two weeks unless directed by your doctor.

While there are no specific laboratory tests required for this medication, always stay alert to how your body responds. If you experience any unusual symptoms or have concerns, it's best to reach out to your healthcare provider for guidance.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, if you suspect an overdose, it is important to be aware of potential signs, which may include unusual drowsiness, confusion, or difficulty breathing.

If you or someone else may have taken too much of the medication, seek immediate medical help. You can 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 risk of overdose.

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 developing child are the top priority, so make sure to discuss any concerns or questions you may have.

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. Currently, there is no information available about whether this product is excreted in breast milk or if it poses any risk to your infant.

As always, it's a good idea to consult with your healthcare provider if you have any concerns or questions about using any medication 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 work effectively. 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, it’s important to consult with a healthcare provider before starting the medication. 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 is safe and effective, especially if you have any concerns about your kidney health. They can provide the necessary guidance based on your individual situation.

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 and make sure the container is tightly closed. This helps maintain its effectiveness and safety.

When handling the product, always do so with care to avoid contamination. Keeping the container sealed until you are ready to use it is essential for maintaining its quality.

Additional Information

For adults and children aged 12 and over, you should chew 2 to 4 tablets when symptoms occur, or follow your doctor's instructions. It's important not to swallow the tablets whole. There is no additional information available regarding laboratory tests, abuse potential, or patient counseling.

FAQ

What is DRx CHOICE®?

DRx CHOICE® is a regular strength antacid tablet that contains 500 mg of calcium carbonate, designed to provide fast relief from upset stomach, heartburn, and acid indigestion.

How should I take DRx CHOICE®?

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 are the indications for using DRx CHOICE®?

DRx CHOICE® is indicated for relieving heartburn, acid indigestion, sour stomach, and upset stomach associated with these symptoms.

Are there any contraindications for DRx CHOICE®?

Do not take more than 15 tablets in 24 hours, and if pregnant, do not take more than 10 tablets in 24 hours. Avoid using the maximum dosage for more than 2 weeks unless advised by a doctor.

What should I do if I am taking other medications?

Ask a doctor or pharmacist before using DRx CHOICE® if you are currently taking a prescription drug, as antacids may interact with certain medications.

Is DRx CHOICE® safe to use during pregnancy?

There are no teratogenic effects mentioned, but if pregnant, do not take more than 10 tablets in 24 hours.

What flavors does DRx CHOICE® come in?

DRx CHOICE® is available in an assorted fruit flavor and is both naturally and artificially flavored.

How should I store DRx CHOICE®?

Store DRx CHOICE® at room temperature and keep the container tightly closed.

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

Do not use DRx CHOICE® if the printed seal under the cap is broken or missing.

What is the maximum dosage for DRx CHOICE®?

The maximum dosage is 15 tablets in 24 hours, and if pregnant, do not exceed 10 tablets in 24 hours.

Packaging Info

Below are the non-prescription pack sizes of Drx Choice Antacid Calcium (calcium carbonate 500mg). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Drx Choice Antacid Calcium.
Details

Drug Information (PDF)

This file contains official product information for Drx Choice Antacid Calcium, 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 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 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 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 of this product is contraindicated in the following situations:

Exceeding a dosage of 15 tablets within a 24-hour period is prohibited. In pregnant individuals, the maximum dosage should not exceed 10 tablets in a 24-hour period due to potential risks to the fetus. Additionally, the maximum dosage should not be utilized for more than 2 weeks unless under the guidance and supervision of a healthcare professional, as prolonged use may lead to adverse effects.

Warnings and Precautions

Healthcare professionals 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.

It is crucial to adhere to the recommended dosage guidelines. Patients should 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 utilized for more than two weeks unless directed and monitored by a healthcare provider.

No specific laboratory tests are recommended for monitoring during the use of this medication. However, healthcare professionals should remain vigilant for any potential interactions with other medications and advise patients accordingly.

Side Effects

Patients should be aware of the potential adverse reactions associated with the use of 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 15 tablets within a 24-hour period. For pregnant individuals, the maximum dosage should not exceed 10 tablets in 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.

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 Drx Choice Antacid Calcium (calcium carbonate 500mg). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Drx Choice Antacid Calcium.
Details

Pediatric Use

Pediatric patients should be advised to keep this medication 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 instruct patients not to swallow the tablets whole.

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 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 treatment options with their healthcare provider to ensure appropriate management during pregnancy.

Lactation

There are no specific warnings or recommendations regarding the use of this product in nursing mothers. Additionally, there is no information available about the potential for excretion in breast milk or any associated risks to 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 arise from an overdose. These may include, but are not limited to, increased severity of known side effects, altered mental status, or any unusual physiological responses.

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. Healthcare professionals should also consider contacting a poison control center for additional guidance on the management of overdose cases.

In summary, while specific overdosage information is not available, healthcare professionals should exercise caution, monitor for symptoms, and provide appropriate supportive care in the event of an overdose.

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 a maximum of 15 tablets within a 24-hour period. For patients who are pregnant, it is crucial to limit the intake to no more than 10 tablets in a 24-hour timeframe.

Additionally, healthcare providers should emphasize that the maximum dosage should not be used for more than 2 weeks unless under the guidance and supervision of a physician.

Patients should also be informed about the potential interactions between antacids and certain prescription medications they may be taking. It is important for patients to disclose all current medications to their healthcare provider to ensure safe and effective use of the product.

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 and humidity. Proper storage conditions are essential to preserve the quality and efficacy of the product.

Additional Clinical Information

For adults and children aged 12 years and over, the recommended administration involves chewing 2-4 tablets as symptoms occur or as directed by a healthcare professional. It is important to note that the tablets should not be swallowed whole.

No additional information is available regarding laboratory tests, abuse potential, patient counseling, or postmarketing experience.

Drug Information (PDF)

This file contains official product information for Drx Choice Antacid Calcium, 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 Drx Choice Antacid Calcium, 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.