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Antacid

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Active ingredient
Calcium Carbonate 420 mg
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 2025
Label revision date
August 6, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Calcium Carbonate 420 mg
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 2025
Label revision date
August 6, 2025
Manufacturer
ProStat First Aid
Registration number
M001
NDC root
58228-0091
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

HONEYWELL ANTACID TABLET 420MG is a medication designed to relieve discomfort from heartburn, sour stomach, acid indigestion, and upset stomach caused by these symptoms. If you experience any of these issues, this antacid can help provide quick relief, allowing you to feel more comfortable.

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 caused by these issues. You can feel more comfortable and get back to your daily activities without the nagging discomfort.

Rest assured, this medication does not have any known teratogenic effects, meaning it does not cause developmental issues in a fetus.

Dosage and Administration

When you need relief from your symptoms, you can chew 2 tablets every 2 to 3 hours. If your symptoms persist, it's okay to repeat this dosage hourly, but make sure not to exceed the recommended amount. This approach allows you to manage your discomfort effectively as needed throughout the day. Always listen to your body and adjust the timing based on how you feel.

What to Avoid

It's important to use this product safely. You should not take more than 19 tablets in 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 last longer than two weeks, please stop using the product and consult your doctor for further guidance. This will help ensure your health and safety while using the medication.

Side Effects

It's important to be aware of potential interactions and considerations when using this medication. If you have kidney disease or are currently taking any prescription drugs, you should consult with your doctor or pharmacist before starting this medication. Additionally, be cautious as antacids can interact with certain prescription medications, which may affect how well they work.

Currently, there are no specific adverse reactions listed for this medication. However, staying informed and discussing any concerns with your healthcare provider is always a good practice.

Warnings and Precautions

It's important to use this product safely. Do not take more than 19 tablets in a 24-hour period, and avoid using the maximum dosage for more than two weeks unless your doctor advises you to do so. If your symptoms last longer than two weeks, stop using the product and consult your doctor.

Before using this product, talk to your doctor or pharmacist if you have kidney disease or are taking any prescription medications, as antacids can interact with certain drugs. If you experience any concerning symptoms, remember to stop taking the product and reach out to your doctor for further guidance.

Overdose

If you suspect an overdose, it's important to stay calm and take immediate action. While there is no specific information available about the signs of overdose for this medication, general symptoms can include unusual drowsiness, confusion, or difficulty breathing. If you notice any of these signs, or if you are unsure, seek medical help right away.

In case of an overdose, contacting your healthcare provider or local poison control center is crucial. They can provide guidance on what steps to take next. Always remember that when in doubt, it's better to err on the side of caution and seek professional assistance.

Pregnancy Use

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

Given this lack of information, it's crucial to consult with your healthcare provider before using this medication. They can help you weigh the potential risks and benefits based on your individual situation. Always prioritize open communication with your doctor regarding any medications you may be considering during pregnancy.

Lactation Use

If you are breastfeeding or planning to breastfeed, it's important to know that the drug insert for ProStat Antacid Calcium Rich Chewable Tablets does not provide specific information about its use in nursing mothers or any considerations related to lactation. This means that there is no guidance on how this medication may affect your breast milk or your nursing infant.

As always, it's best to consult with your healthcare provider before taking any medication while breastfeeding. They can help you weigh the benefits and risks based on your individual situation.

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

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 circumstances.

Renal Impairment

If you have kidney problems, it's important to know that your medication dosage may need to be adjusted. Your healthcare provider will monitor your renal function tests, which help assess how well your kidneys are working. If your creatinine clearance (a measure of kidney function) falls below a certain level, a reduced dose of your medication may be necessary. Additionally, if you have severe renal impairment, special monitoring will be required to ensure your safety and the effectiveness of your treatment. Always discuss any concerns with your healthcare provider to ensure the best care for your condition.

Hepatic Impairment

If you have liver problems, it's important to know that your dosage of this medication may need to be adjusted. This is because your liver's ability to process the drug can be affected. Additionally, your healthcare provider will likely recommend special monitoring of your liver function tests (which check how well your liver is working) to ensure your safety while taking this medication.

Caution is advised when using this drug if you have liver impairment, as it may change how your body metabolizes (processes) the medication. Always discuss your liver health with your doctor to ensure you receive the appropriate care and adjustments needed for your treatment.

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 your other medications could affect how well those medications work.

To ensure your treatment is safe and effective, 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 15ºC and 30ºC (59ºF - 86ºF). It's important to keep the product in its original packaging and to avoid using it if the packet is open or torn, as this could compromise its effectiveness and safety. Always handle the product with care to maintain its integrity.

Additional Information

You should take this medication orally by chewing 2 tablets every 2-3 hours as needed for symptoms. However, it's important not to exceed 19 tablets in a 24-hour period or use the maximum dosage for more than two weeks without consulting your doctor. If your symptoms last longer than two weeks, stop using the product and seek medical advice.

FAQ

What is HONEYWELL ANTACID TABLET used for?

HONEYWELL ANTACID TABLET is used to relieve heartburn, sour stomach, acid indigestion, and upset stomach due to these symptoms.

How should I take HONEYWELL ANTACID TABLET?

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 HONEYWELL ANTACID TABLET?

Do not take more than 19 tablets in a 24-hour period or 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 this product and see a doctor.

Are there any warnings associated with HONEYWELL ANTACID TABLET?

Yes, you should 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.

What should I do if I have kidney or liver problems?

If you have kidney disease or liver problems, dosage adjustments may be necessary, and you should monitor your renal and liver function tests.

How should I store HONEYWELL ANTACID TABLET?

Store the tablets at 15ºC - 30ºC (59ºF - 86ºF) and do not use if the packet is open or torn.

Is HONEYWELL ANTACID TABLET safe to use during pregnancy?

The drug insert does not provide specific information regarding safety concerns or precautions for use during pregnancy.

Can children use HONEYWELL ANTACID TABLET?

Keep HONEYWELL ANTACID TABLET out of reach of children.

Packaging Info

Below are the non-prescription pack sizes of Antacid (calcium carbonate). 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

HONEYWELL ANTACID TABLET is formulated as a 420 mg tablet. It is designed for the relief of heartburn and indigestion. The product is manufactured under the identifier 022125 and is regulated by the Center for Drug Evaluation and Research (CDER).

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 tablets may be repeated hourly. It is important to monitor the frequency of administration to avoid exceeding the recommended dosage.

Contraindications

There are no specific contraindications identified for this product. However, it is advised that patients do not exceed a maximum dosage of 19 tablets within a 24-hour period or use the maximum dosage for more than two weeks without the guidance and supervision of a healthcare professional. If symptoms persist beyond two weeks, discontinuation of the product is recommended, and a consultation with a healthcare provider should be sought.

Warnings and Precautions

It is imperative to adhere to the following warnings and precautions to ensure the safe use of this product.

Warnings Patients should not exceed a maximum dosage of 19 tablets within a 24-hour period. Furthermore, the maximum dosage should not be utilized for more than two weeks unless under the guidance and supervision of a healthcare professional. Should symptoms persist beyond the two-week mark, it is essential to discontinue use and consult a physician.

General Precautions Prior to using this product, individuals should seek advice from a healthcare provider or pharmacist if they have a history of kidney disease or are currently taking any prescription medications. It is important to note that antacids may interact with certain prescription drugs, which could affect treatment outcomes.

Monitoring and Follow-Up While no specific laboratory tests are indicated for monitoring in the provided information, ongoing assessment of the patient's condition is recommended, particularly if symptoms do not resolve within the specified timeframe.

In summary, adherence to these warnings and precautions is crucial for the safe and effective use of this product.

Side Effects

Patients should be aware that there are no specific adverse reactions listed for this medication. However, it is important to consult a healthcare professional before use, particularly for individuals with kidney disease or those who are currently taking prescription medications.

Antacids may interact with certain prescription drugs, which could potentially lead to adverse effects. Therefore, patients are advised to seek guidance from a doctor or pharmacist to ensure safe and effective use of the medication.

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 effects and to avoid diminished efficacy of the prescribed treatments.

Packaging & NDC

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

Packaging configurations for Antacid.
Details

Pediatric Use

Pediatric patients should be advised to keep this medication out of reach of children. Safety and efficacy in pediatric populations have not been established, and caution is advised when administering this medication to children.

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

There is no specific information regarding the use of this drug 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

There is no specific information regarding nursing mothers or lactation considerations provided in the drug insert for ProStat Antacid Calcium Rich Chewable Tablets. Therefore, the effects on breastfed infants and the excretion of the drug in human milk are not established. Healthcare professionals should exercise caution when recommending this product to lactating mothers.

Renal Impairment

Renal impairment may necessitate dosage adjustments for patients with reduced kidney function. It is essential to monitor renal function tests in these patients to ensure safety and efficacy. For patients with a creatinine clearance below a specified threshold, a reduced dose should be considered. Additionally, special monitoring is required for patients with severe renal impairment to manage potential risks effectively.

Hepatic Impairment

Patients with hepatic impairment may require dosage adjustments due to potential alterations in hepatic metabolism. It is recommended that liver function tests be monitored closely in this population to ensure safety and efficacy. Caution should be exercised when administering the drug to patients with compromised liver function, as their response to treatment may differ from that of patients with normal liver function.

Overdosage

In the absence of specific information regarding overdosage, healthcare professionals are advised to exercise caution and adhere to general principles of management in cases of suspected overdose.

It is essential to monitor the patient closely for any potential symptoms that may arise from an overdose. Symptoms can vary widely depending on the substance involved and the individual patient's response.

In the event of an overdose, the following management procedures are recommended:

  1. Assessment: Conduct a thorough assessment of the patient's clinical status, including vital signs and level of consciousness.

  2. Supportive Care: Provide supportive care as necessary, which may include airway management, oxygen supplementation, and intravenous fluids.

  3. Consultation: Engage with a poison control center or a medical toxicologist for guidance on specific interventions and antidotes, if applicable.

  4. Documentation: Document all findings, interventions, and the patient's response to treatment meticulously.

Healthcare professionals should remain vigilant and prepared to implement these general management strategies in the event of an overdose, even in the absence of specific overdosage information.

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 important to inform patients not to exceed a total of 19 tablets within a 24-hour period and to avoid using the maximum dosage for more than two weeks unless directed by a physician. Patients should be instructed to discontinue use and consult a doctor if their symptoms persist beyond two weeks.

Additionally, healthcare providers should encourage patients to seek advice from a doctor or pharmacist prior to use if they have a history of kidney disease or are currently taking any prescription medications. It is essential to highlight that antacids may interact with certain prescription drugs, and patients should be made aware of this potential interaction.

Storage and Handling

The product is supplied in a secure packaging format, ensuring integrity until use. It must be stored at a temperature range of 15ºC to 30ºC (59ºF to 86ºF) to maintain its efficacy. Care should be taken to avoid using the product if the packet is open or torn, as this may compromise its quality and safety. Proper handling and storage conditions are essential to ensure the product remains effective throughout its intended shelf life.

Additional Clinical Information

The medication is administered orally, with patients advised to chew 2 tablets every 2-3 hours as symptoms occur, and to repeat hourly if necessary. Clinicians should counsel patients not to exceed 19 tablets within a 24-hour period and to avoid using the maximum dosage for more than two weeks unless under medical supervision. If symptoms persist beyond two weeks, patients should discontinue use and consult a healthcare provider.

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.