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Genexa Antacid Maximum Strength

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Active ingredient
Calcium Carbonate 1000 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 2025
Label revision date
August 31, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Calcium Carbonate 1000 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 2025
Label revision date
August 31, 2025
Manufacturer
PNP Pharmaceuticals Inc
Registration number
M001
NDC root
84998-0098
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

Genexa Antacid Maximum Strength is a clean medicine designed to provide relief from common digestive discomforts. It contains 1000 mg of calcium carbonate, the same active ingredient found in TUMS Ultra Strength 1000, and is formulated without artificial additives, preservatives, flavors, or dyes. This antacid is available in a pleasant berry flavor and comes in a convenient pack of 72 chewable tablets.

You can use Genexa Antacid to help relieve heartburn, acid indigestion, sour stomach, and upset stomach associated with these symptoms. Its clean formulation makes it a suitable choice for those looking for an effective antacid without the worry of common allergens or artificial ingredients.

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 can take this medication by chewing 2 to 3 tablets whenever you experience symptoms, or as your doctor advises. It's important to chew the tablets thoroughly before swallowing them to ensure they work effectively.

You should take the tablets as needed, meaning you don’t have to follow a strict schedule—just use them when symptoms arise. Always follow your doctor's instructions for the best results.

What to Avoid

It's important to use this medication responsibly to ensure your safety. You should not take more than 7 tablets within a 24-hour period. If you are pregnant, limit your intake to no more than 5 tablets in the same timeframe. Additionally, avoid using the maximum dosage for longer than 2 weeks unless your doctor has advised and is supervising you.

By following these guidelines, you can help prevent potential risks associated with misuse or overuse of the medication. Always consult with your healthcare provider if you have any questions or concerns about your treatment.

Side Effects

It's important to be aware of potential side effects when using this product. You should consult your doctor if you are on a sodium-restricted diet or taking any prescription medications, as antacids can interact with certain drugs. While using this product, do not exceed 7 tablets in a 24-hour period, and if you are pregnant, limit your intake to 5 tablets in the same timeframe. Additionally, avoid using the maximum dosage for more than 2 weeks unless directed by a healthcare professional.

Always keep this product out of reach of children to ensure their safety. If you experience any unusual symptoms or have concerns, please reach out to your healthcare provider for guidance.

Warnings and Precautions

Before using this product, it's important to consult your doctor if you are on a sodium-restricted diet or if you are currently taking any prescription medications, as antacids can interact with certain drugs.

While using this product, please remember not to exceed 7 tablets in a 24-hour period. If you are pregnant, limit your intake to no more than 5 tablets in 24 hours. Additionally, avoid using the maximum dosage for more than 2 weeks unless directed by your doctor.

If you experience any unusual symptoms or have concerns while using this product, it's best to stop taking it and reach out to your doctor for 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 effects of an overdose for this medication, you should be aware of general signs that may indicate a problem. These can include unusual drowsiness, confusion, or difficulty breathing.

If you notice any of these symptoms or if you believe you have taken too much of the medication, seek medical help right away. Contact your healthcare provider or go to the nearest emergency room. It's always better to be safe and get checked out if you have any concerns about your health.

Pregnancy Use

If you are pregnant, it is important to limit your intake to no more than 5 tablets in a 24-hour period. Additionally, you should avoid using the maximum dosage for more than 2 weeks unless you have received guidance and supervision from your doctor. Always consult with your healthcare provider before taking any medication during pregnancy to ensure the safety of you and your baby.

Lactation Use

If you are breastfeeding, it's important to know that there is no specific information available regarding the use of this medication while nursing. This means that the effects on breast milk production and your nursing infant are not clearly defined.

As always, it's best to consult with your healthcare provider about any medications you are considering while breastfeeding 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 can chew 2 to 3 tablets as needed for symptoms, or follow your doctor's instructions.

Always remember to keep the medication out of reach of younger children to ensure their safety. If you have any concerns or questions about its use, consult 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 if you or a loved one is an older adult considering this medication, it’s important to consult with a healthcare provider. 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 plan is safe and effective for your specific situation. They can help monitor your kidney health and make any necessary adjustments to your medications.

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 (liver issues).

Always consult your healthcare provider for personalized advice and to discuss any concerns regarding your liver health and how it may relate to your treatment. They can help ensure that you receive the safest and most effective care.

Drug Interactions

It's important to talk to your doctor or pharmacist before using this medication, especially if you are currently taking any prescription drugs. Some medications, like antacids, can interact with your prescription medications, potentially affecting how well they work or increasing the risk of side effects.

Always keep your healthcare provider informed about all the medications you are taking to ensure your treatment is safe and effective. This way, you can avoid any unexpected interactions and get the best possible care.

Storage and Handling

To ensure the best performance of your product, store it in a dry place at a temperature between 20-25°C (68-77°F) and keep it out of direct sunlight. This helps maintain its effectiveness and safety.

When handling the product, be sure to check the bottle seal under the cap. If the seal is disturbed or missing, do not use the product, as this could compromise its safety. Always follow these guidelines to ensure you are using the product correctly and safely.

Additional Information

It's important to follow some guidelines when using this product. If you are on a sodium-restricted diet or currently taking any prescription medications, consult your doctor or pharmacist before use, as antacids can interact with certain drugs. While using this product, do not exceed 7 tablets in a 24-hour period, and if you are pregnant, limit your intake to 5 tablets in 24 hours. Additionally, avoid using the maximum dosage for more than 2 weeks unless directed by a doctor. Always keep this product out of reach of children.

FAQ

What is Genexa Antacid Maximum Strength?

Genexa Antacid Maximum Strength is a clean medicine that contains 1000 mg of calcium carbonate, the same active ingredient as TUMS Ultra Strength 1000, and is free of artificial additives.

What symptoms does Genexa Antacid relieve?

It relieves heartburn, acid indigestion, sour stomach, and upset stomach associated with these symptoms.

How should I take Genexa Antacid?

Adults and children 12 years and older should chew 2-3 tablets as symptoms occur, or as directed by a doctor.

What is the maximum dosage for Genexa Antacid?

Do not take more than 7 tablets in 24 hours, and if pregnant, do not take more than 5 tablets in 24 hours.

How long can I use Genexa Antacid at maximum dosage?

You should not use the maximum dosage for more than 2 weeks unless advised and supervised by a doctor.

Are there any warnings for using Genexa Antacid?

Yes, ask a doctor before use if you have a sodium-restricted diet or if you are taking a prescription drug, as antacids may interact with certain medications.

What should I do if I have children?

Keep Genexa Antacid out of reach of children.

What flavor does Genexa Antacid come in?

It is available in a berry flavor.

What should I do if the bottle seal is disturbed or missing?

Do not use the product if the bottle seal under the cap is disturbed or missing.

Packaging Info

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

Packaging configurations for Genexa Antacid Maximum Strength.
Details

Drug Information (PDF)

This file contains official product information for Genexa Antacid Maximum Strength, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Uses and Indications

This drug is indicated for the relief of heartburn, acid indigestion, and sour stomach. It is also effective in alleviating upset stomach associated with these symptoms.

There are no teratogenic or nonteratogenic effects associated with this drug.

Dosage and Administration

Adults and children 12 years of age and older are instructed to chew 2 to 3 tablets as symptoms occur, or as directed by a healthcare professional. The chewable tablets should be administered orally, and dosing may be adjusted based on individual symptomatology and physician recommendations.

Contraindications

Use is contraindicated in the following situations:

  • Patients should not exceed a dosage of 7 tablets within a 24-hour period.

  • In pregnant individuals, the dosage should not exceed 5 tablets in a 24-hour period.

  • The maximum dosage should not be used for more than 2 weeks unless advised and supervised by a healthcare professional.

Warnings and Precautions

Patients should consult a healthcare professional prior to using this product if they are on a sodium-restricted diet. Additionally, it is advisable for individuals currently taking prescription medications to seek guidance from a doctor or pharmacist, as antacids may interact with certain prescription drugs.

When utilizing this product, it is imperative to adhere to the following precautions: do not exceed a maximum of 7 tablets within a 24-hour period. For pregnant individuals, the maximum dosage should not exceed 5 tablets in a 24-hour timeframe. Furthermore, the maximum dosage should not be used for more than 2 weeks unless directed and supervised by a healthcare provider.

No specific laboratory tests are recommended for monitoring during the use of this product.

Side Effects

Patients should be aware of the following warnings and precautions associated with the use of this product. Individuals on a sodium-restricted diet should consult a doctor prior to use. Additionally, patients who are currently taking prescription medications are advised to seek guidance from a healthcare professional or pharmacist, as antacids may interact with certain prescription drugs.

When using this product, it is important for patients to adhere to the recommended dosage guidelines. Specifically, patients should not exceed 7 tablets within a 24-hour period. For pregnant individuals, the maximum dosage should not exceed 5 tablets in a 24-hour period. Furthermore, patients are cautioned against using the maximum dosage for more than 2 weeks unless under the advice and supervision of a healthcare provider.

As with all medications, this product should be kept out of reach of children to prevent accidental ingestion.

Drug Interactions

Patients are advised to consult a healthcare professional, such as a doctor or pharmacist, prior to using this medication if they are currently taking any prescription drugs.

Antacids may have the potential to interact with specific prescription medications, which could alter the effectiveness of those drugs. It is essential for patients to disclose all medications they are taking to ensure safe and effective use of antacids. Monitoring for any adverse effects or changes in therapeutic outcomes is recommended when antacids are used concurrently with prescription medications.

Packaging & NDC

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

Packaging configurations for Genexa Antacid Maximum Strength.
Details

Pediatric Use

Pediatric patients aged 12 years and older may chew 2-3 tablets as symptoms occur, or as directed by a healthcare professional. It is important to keep this medication out of reach of children to prevent accidental ingestion.

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

Pregnant patients should not exceed a maximum dosage of 5 tablets within 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. It is important for healthcare providers to consider these limitations when prescribing this medication to pregnant patients, as prolonged use or exceeding recommended dosages may pose risks to fetal outcomes. Careful monitoring and consultation with a physician are advised to ensure the safety of both the patient and the developing fetus.

Lactation

There is no specific information available regarding the use of this medication in nursing mothers or its effects during lactation. Healthcare professionals should consider the lack of data when advising lactating mothers about the use of this medication. It is recommended to weigh the potential benefits against any unknown risks to breastfed infants.

Renal Impairment

Patients with renal impairment may not have specific dosage adjustments, special monitoring, or safety considerations outlined in the prescribing information. Therefore, healthcare professionals should exercise caution when prescribing this medication to individuals with reduced kidney function, as the absence of detailed guidance necessitates careful clinical judgment and monitoring of the patient's overall condition.

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 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, immediate medical attention should be sought. Healthcare providers should implement supportive care measures, which may include maintaining airway patency, providing supplemental oxygen, and monitoring vital signs.

If available, specific antidotes or treatments should be administered as per established protocols. Continuous assessment and supportive care are critical in managing the patient's condition effectively.

Healthcare professionals are encouraged to report any cases of overdose to the appropriate regulatory authorities to enhance the understanding of the substance's safety profile.

Nonclinical Toxicology

No teratogenic effects were noted in animal studies. Additionally, there was no increase in fetal malformations observed in these studies. The available data do not indicate any concerns regarding teratogenicity or non-teratogenic effects in the context of nonclinical toxicology.

Information regarding animal pharmacology and toxicology was not provided in the insert.

Postmarketing Experience

No postmarketing experience details are available in the insert text.

Patient Counseling

Healthcare providers should advise patients to keep this product out of reach of children to prevent accidental ingestion.

When discussing the use of this product, it is important to inform patients that they should not exceed a dosage of 7 tablets within a 24-hour period. For pregnant patients, the maximum dosage should be limited to 5 tablets in 24 hours. Additionally, patients should be cautioned against using the maximum dosage for more than 2 weeks unless under the guidance and supervision of a healthcare professional.

Providers should encourage patients to consult with their doctor before using this product if they are on a sodium-restricted diet. Furthermore, it is essential to recommend that patients speak with their doctor or pharmacist prior to use if they are currently taking any prescription medications, as antacids may interact with certain drugs.

Storage and Handling

The product is supplied in a container that must be stored at a temperature range of 20-25°C (68-77°F). It should be kept in a dry place, away from direct sunlight, to maintain its integrity and effectiveness.

Healthcare professionals are advised to inspect the bottle seal under the cap prior to use; the product should not be utilized if the seal is disturbed or missing, as this may indicate potential contamination or compromise of the product.

Additional Clinical Information

Patients should be advised to consult a healthcare professional before using the product if they are on a sodium-restricted diet or currently taking prescription medications, as antacids may interact with certain drugs. When using this product, it is important not to exceed 7 tablets in a 24-hour period, and pregnant individuals should limit their intake to a maximum of 5 tablets in 24 hours. The maximum dosage should not be used for more than 2 weeks unless directed by a physician. Additionally, the product should be kept out of reach of children.

Drug Information (PDF)

This file contains official product information for Genexa Antacid Maximum 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 Genexa Antacid Maximum 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

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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.