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Unishield Antacid

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Active ingredient
Calcium Carbonate 420 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 2021
Label revision date
September 8, 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, 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 2021
Label revision date
September 8, 2025
Manufacturer
Unishield
Registration number
M001
NDC roots
49314-1013, 49314-1023
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

Unishield is an antacid that helps relieve various stomach discomforts, including upset stomach, indigestion, heartburn, and acid indigestion. It contains 420 mg of calcium carbonate, which works by neutralizing stomach acid to provide quick relief from these symptoms.

These chewable tablets are designed to be easy to take and are available in convenient packets, making them a practical option for managing occasional digestive issues. If you're experiencing discomfort from a sour stomach or related symptoms, Unishield may be a helpful choice for you.

Uses

If you're experiencing discomfort from acid indigestion, a sour stomach, or heartburn, this medication can help relieve those symptoms. It is also effective for soothing an upset stomach that comes along 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) associated with it.

Dosage and Administration

If you are an adult or a child aged 12 years and older, you can take this medication by chewing 2 tablets every 2 to 3 hours as needed for your symptoms. If your symptoms persist, you can repeat the dose every hour, but be careful not to exceed 19 tablets in a 24-hour period.

For children under 12 years old, it’s important to consult a doctor before giving them this medication. Always follow your healthcare provider's advice to ensure safe and effective use.

What to Avoid

It's important to use this product safely to avoid potential issues. You should not use the maximum dosage for more than 2 weeks unless your doctor advises you to do so. Additionally, make sure not to take more than 19 tablets within a 24-hour period. If your symptoms continue for more than 2 weeks, please stop using the product and consult your doctor for further guidance.

Side Effects

It's important to be aware that antacids can interact with some prescription medications, which may affect how well those medications work. If you have kidney disease, it's advised to avoid using antacids, as they may not be safe for you.

Always consult with your healthcare provider if you have any concerns about using antacids, especially if you are taking other medications or have existing health conditions.

Warnings and Precautions

It's important to use this product responsibly. You should not take the maximum dosage for more than 2 weeks unless your doctor advises you to do so. If you notice that your symptoms last longer than 2 weeks, please stop using the product and consult your doctor for further guidance.

Always prioritize your health and safety by following these precautions. If you have any concerns or questions about your treatment, don't hesitate to reach out to your healthcare provider.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, if you suspect that you or someone else may have taken too much of a medication, it’s important to be aware of potential signs of overdose, which can include unusual drowsiness, confusion, or difficulty breathing.

If you notice any of these symptoms, or if you are unsure whether an overdose has occurred, seek immediate medical help. You can contact your local emergency services 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 or breastfeeding, it’s important to consult with a healthcare professional before using this medication. They can provide guidance on whether it’s safe for you and your baby. Always prioritize your health and the health of your child by seeking expert advice.

Lactation Use

If you are pregnant or breastfeeding, it’s important to consult with a healthcare professional before using any medication. This ensures that you understand any potential risks and can make informed decisions about your health and the health of your baby. Always prioritize open communication with your doctor regarding your breastfeeding journey.

Pediatric Use

If your child is under 12 years old, it's important to consult a doctor before giving them this medication. For those aged 12 and older, you can help manage symptoms by having them chew 2 tablets every 2 to 3 hours as needed, but they should not take more than 19 tablets in a 24-hour period.

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

Geriatric Use

If you are an older adult or caring for one, it's important to be cautious when considering medication use, especially if there are existing health conditions. If you have kidney disease (a condition where the kidneys do not function properly), make sure to consult with your doctor or pharmacist before starting any new medication. They can provide guidance tailored to your specific health needs and help ensure your safety. Always prioritize open communication with your healthcare providers about any concerns you may have.

Renal Impairment

If you have kidney problems, it's important to know that you may need a lower dose of your medication. Your healthcare provider will monitor your kidney function closely, which includes checking your creatinine clearance (a test that measures how well your kidneys are filtering waste). Regular renal function tests are essential to ensure your kidneys are working properly, and if you have significant renal impairment, you will require special monitoring to manage your treatment safely. 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 there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that the standard recommendations for the medication do not change based on liver impairment. However, it’s always a good idea to discuss your liver health with your healthcare provider, as they can offer personalized advice and monitor your condition effectively.

Make sure to keep your doctor informed about any liver issues you may have, as they can help ensure that your treatment is safe and appropriate for you.

Drug Interactions

It's important to be aware that some over-the-counter medications, such as antacids containing calcium carbonate, can interact with certain prescription drugs. This interaction may affect how well those medications work in your body. Because of this, it's crucial to discuss all the medications you are taking, including any over-the-counter products, with your healthcare provider. They can help ensure that your treatments are safe and effective.

Always keep an open line of communication with your healthcare team about any changes in your medication regimen or if you have questions about how different drugs may interact. This way, you can avoid potential issues and get the best possible care.

Storage and Handling

To ensure the best quality and safety of your product, store it at room temperature, ideally between 59ºF and 86ºF (15ºC to 30ºC), in a dry location. It's important to keep the product in its tamper-evident sealed packets, which help ensure that it has not been compromised. If you find any packets that are opened or torn, do not use them, as this could affect the safety and effectiveness of the product. Always handle the packets with care to maintain their integrity.

Additional Information

No further information is available.

FAQ

What is Unishield?

Unishield is an antacid that relieves upset stomach, indigestion, and heartburn.

What is the active ingredient in Unishield?

Unishield contains 420 mg of Calcium Carbonate, which is a calcium-rich chewable tablet.

How should adults and children 12 years and older take Unishield?

You should chew 2 tablets every 2 to 3 hours as symptoms occur, and you can repeat hourly if needed, but do not exceed 19 tablets in 24 hours.

What should children under 12 do before taking Unishield?

Children under 12 years should ask a doctor before use.

Are there any contraindications for Unishield?

No specific contraindications are mentioned for Unishield.

What precautions should I take when using Unishield?

Do not use the maximum dosage for more than 2 weeks without a doctor's advice, and consult a doctor if you have kidney disease.

What should I do if my symptoms persist?

If your symptoms persist for more than 2 weeks, stop using Unishield and see a doctor.

How should Unishield be stored?

Store Unishield at room temperature between 59º-86ºF (15º-30ºC) in a dry place, and do not use any opened or torn packets.

Can Unishield interact with other medications?

Yes, antacids like Calcium Carbonate may interact with certain prescription drugs, affecting their absorption and efficacy.

Is Unishield safe to use during pregnancy or breastfeeding?

If you are pregnant or breastfeeding, you should ask a health professional before using Unishield.

Packaging Info

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

Packaging configurations for Unishield Antacid.
Details

Drug Information (PDF)

This file contains official product information for Unishield Antacid, 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 acid indigestion, sour stomach, heartburn, 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 tablets every 2 to 3 hours as symptoms occur. If necessary, dosing may be repeated hourly; however, the total dosage must not exceed 19 tablets within a 24-hour period.

For children under 12 years of age, it is recommended to consult a physician for appropriate dosing guidance.

Contraindications

The maximum dosage of this product should not be used for more than 2 weeks unless advised and supervised by a healthcare professional. Additionally, the intake should not exceed 19 tablets within a 24-hour period. If symptoms persist beyond 2 weeks, discontinue use and consult a physician.

Warnings and Precautions

The maximum dosage of this product should not be utilized for a duration exceeding 2 weeks unless under the guidance and supervision of a healthcare professional. This precaution is essential to mitigate the risk of potential adverse effects associated with prolonged high-dose usage.

In the event that symptoms persist beyond 2 weeks, it is imperative to discontinue use of the product and consult a physician. This recommendation is crucial for ensuring patient safety and addressing any underlying health concerns that may require further evaluation.

Side Effects

Patients may experience various adverse reactions associated with the use of this medication. It is important to note that antacids may interact with certain prescription drugs, which could lead to altered efficacy or increased side effects of those medications.

Additionally, the use of this medication is not recommended in individuals with kidney disease due to the potential for serious complications. Healthcare providers should carefully evaluate the risks and benefits of prescribing this medication to patients with compromised renal function.

Monitoring for adverse reactions and potential drug interactions is essential to ensure patient safety and therapeutic effectiveness.

Drug Interactions

Antacids, particularly those containing calcium carbonate, may interact with certain prescription medications, potentially impacting their absorption and overall efficacy. It is advisable for healthcare professionals to monitor patients for any changes in therapeutic effects when these antacids are co-administered with other drugs. Adjustments to the timing of administration or dosage may be necessary to mitigate these interactions.

No additional drug interactions or laboratory test interactions have been identified.

Packaging & NDC

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

Packaging configurations for Unishield Antacid.
Details

Pediatric Use

Pediatric patients under 12 years of age should consult a healthcare professional before use. For adolescents aged 12 years and older, the recommended dosage is to chew 2 tablets every 2 to 3 hours as symptoms occur, with the option to repeat hourly if necessary. It is important not to exceed 19 tablets within a 24-hour period. Additionally, this product should be kept out of the reach of children to ensure safety.

Geriatric Use

Elderly patients should consult a healthcare professional, such as a doctor or pharmacist, prior to using this medication, particularly if they have a history of kidney disease. This precaution is essential due to the potential for altered pharmacokinetics and increased risk of adverse effects in this population. Careful monitoring and consideration of renal function are advised to ensure safe and effective use in geriatric patients.

Pregnancy

Pregnant patients and those who are breastfeeding should consult a healthcare professional prior to using this medication. The potential risks and benefits must be carefully considered in these populations to ensure the safety of both the mother and the fetus or infant.

Lactation

Lactating mothers are advised to consult a healthcare professional prior to using this medication. There is currently no available data regarding the excretion of this medication in human breast milk or its effects on breastfed infants. Therefore, caution is recommended when administering this medication to lactating individuals.

Renal Impairment

Patients with renal impairment may necessitate a reduced dose of the medication. It is essential for healthcare professionals to monitor creatinine clearance in these patients to assess renal function accurately. Regular renal function tests should be performed in patients with kidney problems to ensure appropriate dosing and safety. Additionally, special monitoring is required for patients with significant renal impairment to mitigate potential risks associated with the medication.

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 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 considered as part of standard clinical practice.

Overdosage

In the absence of specific overdosage information, it is essential for healthcare professionals to remain vigilant and prepared for potential scenarios involving overdose.

Healthcare providers should be aware that the clinical presentation of an overdose may vary depending on the substance involved and the individual patient’s characteristics. Symptoms of overdose can include, but are not limited to, severe drowsiness, confusion, respiratory depression, and cardiovascular instability.

In the event of suspected overdosage, immediate medical attention is warranted. Recommended actions include:

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

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

  3. Decontamination: If the overdose is recent and the patient is alert, consider activated charcoal administration to limit further absorption of the substance.

  4. Specific Antidotes: If applicable, administer specific antidotes as per established protocols for the substance involved in the overdose.

  5. Monitoring: Continuous monitoring of the patient’s vital signs and neurological status is crucial to detect any deterioration promptly.

Healthcare professionals are encouraged to consult local poison control centers or toxicology experts for guidance on managing specific overdose cases. Documentation of the incident and the management steps taken is also critical for ongoing patient care and legal considerations.

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 compound in these areas.

Postmarketing Experience

No postmarketing experience details are available in the insert text.

Patient Counseling

Patients should be advised to keep this product out of the reach of children to prevent accidental ingestion. It is important to inform patients that they should not use the maximum dosage of this product for more than 2 weeks unless directed by a healthcare professional.

While using this product, patients must not exceed 19 tablets within a 24-hour period. If symptoms persist for more than 2 weeks, they should discontinue use and consult a doctor.

Patients should also be encouraged to seek advice from a doctor or pharmacist prior to use if they are currently taking any prescription medications, as antacids may interact with certain drugs. Additionally, it is crucial to ask a healthcare provider before use if the patient has a history of kidney disease.

Storage and Handling

The product is supplied in tamper-evident sealed packets, ensuring the integrity and safety of the contents. It is essential to store the packets at room temperature, specifically within the range of 59ºF to 86ºF (15ºC to 30ºC), in a dry place to maintain optimal quality.

Healthcare professionals are advised to refrain from using any packets that are opened or torn, as this may compromise the product's efficacy and safety.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for Unishield 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 Unishield 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

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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.