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Regular Strength

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Active ingredient
Calcium Carbonate 500 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 2019
Label revision date
September 26, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Calcium Carbonate 500 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 2019
Label revision date
September 26, 2025
Manufacturer
RARITAN PHARMACEUTICALS INC
Registration number
M001
NDC root
68163-100
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

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 a tropical fruit flavor and are gluten-free, making them a convenient option for those seeking quick relief from digestive discomfort.

The active ingredient, calcium carbonate, works by neutralizing stomach acid, which helps alleviate the symptoms associated with heartburn and indigestion. Each bottle contains 66 chewable tablets, allowing you to easily manage occasional digestive issues.

Uses

If you're experiencing discomfort from heartburn, acid indigestion, sour stomach, or an upset stomach, this medication can help relieve those symptoms. It’s designed to provide you with quick relief, allowing you to feel more comfortable throughout your day.

You can trust that this medication does not have any teratogenic effects, meaning it does not cause harm to a developing fetus. This makes it a safer option for those who may be pregnant or planning to become pregnant.

Dosage and Administration

When you need relief from certain symptoms, adults and children aged 12 and older can chew 2 to 4 tablets completely as the symptoms occur. It's important not to swallow the tablets whole, as they need to be chewed to work effectively.

If your symptoms last longer than 2 weeks, you should consult a doctor before continuing to take the medication. This ensures that you are using the medication safely and effectively. Always follow your doctor's advice for the best results.

What to Avoid

It's important to keep this medication out of reach of children to ensure their safety. If you suspect an overdose, please seek medical help immediately or contact a Poison Control Center at 1-800-222-1222. Your health and safety are paramount, so always follow these guidelines carefully.

Side Effects

It's important to be aware of potential side effects when using this product. You should consult your doctor if you are taking any prescription medications, as antacids can interact with them. While using this product, 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.

Keep this product out of reach of children. In the event of an overdose, seek medical assistance immediately or contact a Poison Control Center at 1-800-222-1222.

Warnings and Precautions

Before using this product, it's important to consult your doctor, especially if you are taking any prescription medications, as antacids can interact with them. While using this product, please remember not to exceed 15 tablets in a 24-hour period. 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 your doctor advises you to do so.

Keep this product out of reach of children. If you suspect an overdose, seek medical help immediately or contact a Poison Control Center at 1-800-222-1222. Your safety is a priority, so please take these precautions seriously.

Overdose

If you think you may have taken too much of this medication, it’s important to seek medical help immediately or contact a Poison Control Center at 1-800-222-1222. To avoid an overdose, you should not 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, be cautious about using the maximum dosage for more than two weeks unless your doctor has advised you to do so. Taking more than the recommended amount can lead to serious health risks, so always follow the guidelines provided. If you experience any unusual symptoms or signs of overdose, such as extreme drowsiness or difficulty breathing, seek help right away.

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. 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, you can feel reassured that there are no specific warnings or recommendations regarding the use of this product while nursing. Additionally, there is no information available about whether this product is excreted in breast milk or any potential risks to your infant. Always consult with your healthcare provider if you have any concerns or questions about medications while breastfeeding.

Pediatric Use

If you are considering this medication for your child, it's important to note that it is intended for use in children aged 12 years and older. For this age group, the recommended dosage is to chew 2 to 4 tablets completely when symptoms arise or as directed by a healthcare professional. Always consult with your child's doctor before starting any new medication to ensure it is appropriate for their specific needs.

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 healthcare providers may not have tailored guidelines for elderly patients.

If you or a loved one is an older adult considering this medication, it’s important to discuss any potential risks and benefits with your healthcare provider. They can help determine the best approach based on individual health needs and conditions. Always prioritize open communication with your doctor to ensure safe and effective treatment.

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 if you have hepatic impairment (issues with liver function).

Always consult your healthcare provider for personalized advice and to discuss any concerns regarding your liver health and medication use. They can help ensure that you receive the safest and most effective treatment based on your individual health needs.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. Currently, there are no specific drug interactions or laboratory test interactions noted for this medication. However, every individual’s health situation is unique, and your provider can help ensure that your treatment plan is safe and effective for you. Always feel free to ask questions and share all the medications and supplements you are using to avoid any potential issues.

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 when not in use is essential for preserving its quality.

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 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 completely 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 warnings associated with DRx CHOICE®?

Yes, you should ask a doctor before use if you are taking prescription drugs, as antacids may interact with them. Do not exceed 15 tablets in 24 hours, and if pregnant, do not take more than 10 tablets in 24 hours.

What should I do in case of an overdose?

In case of overdose, get medical help or contact a Poison Control Center immediately at 1-800-222-1222.

Is DRx CHOICE® safe for pregnant or nursing women?

If pregnant, do not take more than 10 tablets in 24 hours. There are no specific warnings regarding the use of this product in nursing mothers.

What is the flavor of DRx CHOICE®?

DRx CHOICE® comes in a tropical fruit flavor, which is naturally and artificially flavored.

Is DRx CHOICE® gluten-free?

Yes, DRx CHOICE® is gluten-free.

Who manufactures DRx CHOICE®?

DRx CHOICE® is manufactured by Raritan Pharmaceuticals, located at 8 Joanna Court, East Brunswick, NJ 08816.

Packaging Info

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

Packaging configurations for Regular Strength.
Details

Drug Information (PDF)

This file contains official product information for Regular 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, 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 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 of this product is contraindicated in the following situations:

  • The product should be kept out of reach of children to prevent accidental ingestion.

  • In the event of an overdose, immediate medical assistance should be sought, or the Poison Control Center should be contacted at 1-800-222-1222.

Warnings and Precautions

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

When administering this product, it is critical to adhere to the following 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 2 weeks unless directed and monitored by a healthcare provider.

It is essential to keep this product out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or the Poison Control Center should be contacted at 1-800-222-1222.

Side Effects

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

When using this product, patients are advised not to exceed 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 used for more than 2 weeks unless under the guidance and supervision of a healthcare provider.

In the event of an overdose, it is crucial to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222. Furthermore, this product should be kept out of reach of children to prevent accidental ingestion.

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 Regular Strength (calcium carbonate). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Regular Strength.
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. There are no specific dosage recommendations for children under 12 years of age. Safety and efficacy in this younger population have not been established.

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

Pregnant patients are 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 counsel women of childbearing potential regarding the importance of adhering to this dosage limit to ensure the safety of both the mother and the developing fetus.

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 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 event of an overdose, it is imperative to seek immediate medical assistance or contact a Poison Control Center at 1-800-222-1222. Prompt action is crucial to mitigate potential health risks associated with excessive intake.

To prevent overdose, it is essential to adhere to the recommended dosage guidelines. For adults, the maximum allowable dosage is 15 tablets within a 24-hour period. In the case of pregnant individuals, the maximum dosage should not exceed 10 tablets in a 24-hour timeframe to avoid the risk of overdose.

Furthermore, it is advised that the maximum dosage not be utilized for more than 2 weeks unless under the guidance and supervision of a healthcare professional. This precaution is vital to prevent the occurrence of overdose and to ensure patient safety.

Healthcare professionals should remain vigilant for signs of overdose and be prepared to implement appropriate management strategies as necessary.

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 this medication out of reach of children to prevent accidental ingestion. It is crucial to emphasize the importance of safety in the home environment, particularly for households with young children.

In the event of an overdose, healthcare providers should instruct patients to seek medical help immediately or contact a Poison Control Center at 1-800-222-1222. Patients should be made aware of the urgency of this action to ensure their safety and well-being.

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

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 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 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.