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Supreme Antacid

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Active ingredients
  • Calcium Carbonate 400 mg/5 mL
  • Magnesium Hydroxide 135 mg/5 mL
Other brand names
Drug classes
Blood Coagulation Factor, Calculi Dissolution Agent, Osmotic Laxative, Phosphate Binder
Dosage form
Suspension
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2017
Label revision date
November 19, 2025
Active ingredients
  • Calcium Carbonate 400 mg/5 mL
  • Magnesium Hydroxide 135 mg/5 mL
Other brand names
Drug classes
Blood Coagulation Factor, Calculi Dissolution Agent, Osmotic Laxative, Phosphate Binder
Dosage form
Suspension
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2017
Label revision date
November 19, 2025
Manufacturer
FAMILY DOLLAR SERVICES INC
Registration number
M001
NDC root
55319-624

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

You may be experiencing discomfort from heartburn, sour stomach, or acid indigestion. This medication is designed to help relieve these symptoms, including upset stomach that can occur after overindulging in food and drink. It works by addressing the underlying causes of these digestive issues, providing you with relief and comfort.

Uses

If you're experiencing discomfort from heartburn, a sour stomach, or acid indigestion, this medication can help relieve those symptoms. It’s also effective for soothing an upset stomach that may arise from overindulging in food and drink.

You can rely on this treatment to ease your discomfort and get back to feeling your best.

Dosage and Administration

Before you use this medication, make sure to shake the bottle well. If you are an adult or a child aged 12 years and older, you can take 2 to 4 teaspoonfuls between meals or at bedtime, unless your doctor has given you different instructions. However, it’s important not to exceed 18 teaspoonfuls in a 24-hour period, and you should not use the maximum dosage for more than 2 weeks.

If the patient is a child under 12 years old, it’s best to consult a doctor before giving them this medication. Always follow the guidance provided by your healthcare professional to ensure safe and effective use.

What to Avoid

It's important to ensure that any medication you use is kept safe and secure. Always keep this medication out of reach of children to prevent accidental ingestion or misuse. There are no specific contraindications, controlled substance classifications, or concerns about abuse or dependence associated with this medication, but safety should always be your top priority.

Side Effects

It's important to be aware of potential side effects and interactions when using this medication. You should consult your doctor if you have kidney disease or are on a magnesium-restricted diet. Additionally, if you are currently taking any prescription medications, it's wise to check with your doctor or pharmacist, as antacids can interact with some drugs.

If your symptoms persist for more than two weeks, you should stop using the medication and seek medical advice. If you are pregnant or breastfeeding, please consult a healthcare professional before using this product.

Warnings and Precautions

Before using this medication, it's important to consult your doctor if you have kidney disease or are on a magnesium-restricted diet. Additionally, if you are currently taking any prescription medications, check with your doctor or pharmacist first, as antacids can interact with some drugs.

If your symptoms persist for more than two weeks, stop using the medication and contact your doctor. If you are pregnant or breastfeeding, seek advice from a healthcare professional before using this product. Always keep this medication out of reach of children to ensure their safety.

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 an 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 a poison control center for guidance on what to do next. Always keep medications out of reach of children and follow the prescribed dosage to prevent any risks.

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, the recommended dosage is 2 to 4 teaspoonfuls taken between meals or at bedtime, unless your doctor advises otherwise.

Be cautious not to exceed 18 teaspoonfuls in a 24-hour period, and avoid using the maximum dosage for more than two weeks. Always keep this medication out of reach of children to ensure their safety.

Geriatric Use

While there is no specific information available about the use of this medication in older adults, it’s important to approach any new treatment with caution. If you or a loved one is an older adult, it’s always wise to discuss any medications with a healthcare provider, especially considering factors like kidney function and changes in cognition (thinking and memory) that can occur with age.

Since there are no dosage adjustments or special precautions mentioned for elderly patients, your healthcare provider 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 use of any medication.

Renal Impairment

If you have kidney disease, it's important to consult your doctor before using this medication. Your healthcare provider can help determine if it's safe for you and if any adjustments to your dosage are necessary. Always prioritize open communication with your doctor regarding your kidney health to ensure the best care.

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 should be used if you have hepatic impairment (liver issues).

Always consult your healthcare provider for personalized advice and to ensure that any medication you take is safe and appropriate for your liver health. They can help determine the best course of action based on your individual situation.

Drug Interactions

It's important to be aware that antacids can interact with some prescription medications. If you are taking other medications, it's a good idea to talk to your doctor or pharmacist before using antacids. They can help ensure that your treatments work effectively together and avoid any potential issues.

Since there are no specific drug interactions or laboratory test interactions noted, maintaining open communication with your healthcare provider about all the medications and supplements you are taking is essential. This way, you can receive the best care tailored to your needs.

Storage and Handling

To ensure the product remains fresh and pure, you should refrigerate it immediately after opening. It's important to keep the container tightly closed to prevent contamination. Please avoid freezing the product, as this can compromise its quality. By following these simple storage guidelines, you can help maintain the product's effectiveness and safety.

Additional Information

You can take this medication orally, with adults and children aged 12 and older advised to take 2 to 4 teaspoonfuls between meals or at bedtime, unless directed otherwise by a doctor. It's important not to exceed 18 teaspoonfuls in a 24-hour period or use the maximum dosage for more than 2 weeks. If you are under 12 years old, consult a doctor before use.

Before starting this medication, ask your doctor if you have kidney disease or are on a magnesium-restricted diet. Additionally, check with your doctor or pharmacist if you are currently taking any prescription medications, as antacids can interact with some drugs. If your symptoms persist for more than 2 weeks, stop using the medication and consult a doctor. Pregnant or breastfeeding individuals should also seek advice from a health professional before use. Always keep this medication out of reach of children.

FAQ

What symptoms does this drug relieve?

This drug relieves heartburn, sour stomach, acid indigestion, upset stomach associated with these symptoms, and upset stomach due to overindulgence in food and drink.

What is the recommended dosage for adults and children 12 years and older?

Adults and children 12 years and older should take 2 to 4 teaspoonfuls between meals, at bedtime, or as directed by a doctor.

What is the maximum dosage I can take in a day?

Do not take more than 18 teaspoonfuls in a 24-hour period or use the maximum dosage for more than 2 weeks.

What should I do if I have kidney disease?

Ask a doctor before use if you have kidney disease or a magnesium-restricted diet.

Can I take this drug if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, ask a health professional before use.

What should I do if my symptoms last more than 2 weeks?

Stop use and ask a doctor if symptoms last more than 2 weeks.

What precautions should I take regarding children?

Keep this drug out of reach of children and consult a doctor before use for children under 12 years.

How should I store this drug?

Refrigerate after opening to preserve freshness and purity, do not freeze, and keep tightly closed.

Can this drug interact with other medications?

Yes, ask a doctor or pharmacist before use if you are presently taking a prescription drug, as antacids may interact with certain medications.

Packaging Info

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

Packaging configurations for Supreme Antacid.
Details

Drug Information (PDF)

This file contains official product information for Supreme 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 heartburn, sour stomach, and acid indigestion. It is also effective in alleviating upset stomach associated with these symptoms, as well as upset stomach resulting from overindulgence in food and drink.

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

Dosage and Administration

Healthcare professionals should instruct patients to shake the product well before use. For adults and children aged 12 years and older, the recommended dosage is 2 to 4 teaspoonfuls taken between meals, at bedtime, or as directed by a physician. It is important to note that patients should not exceed 18 teaspoonfuls within a 24-hour period, and the maximum dosage should not be used for more than 2 weeks.

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

Contraindications

Use of this product is contraindicated in children due to the risk of accidental ingestion. It is essential to keep the product out of reach of children to prevent potential harm. No other contraindications have been identified.

Warnings and Precautions

Patients should consult a healthcare professional prior to use if they have a history of kidney disease or are on a magnesium-restricted diet. It is also advisable to seek guidance from a doctor or pharmacist if the patient is currently taking any prescription medications, as antacids may interact with certain drugs.

In the event that symptoms persist for more than two weeks, the patient should discontinue use and consult a healthcare provider for further evaluation. Additionally, pregnant or breastfeeding individuals are encouraged to seek advice from a health professional before using this product.

To ensure safety, this product should be kept out of reach of children.

Side Effects

Patients should be aware of certain warnings associated with the use of this medication. It is advised to consult a doctor before use if there is a history of kidney disease or if the patient is on a magnesium-restricted diet. Additionally, patients should seek guidance from a doctor or pharmacist if they are currently taking any prescription medications, as antacids may interact with specific drugs.

In the event that symptoms persist for more than two weeks, patients are instructed to discontinue use and consult a doctor. Furthermore, pregnant or breastfeeding individuals should consult a health professional prior to using this medication to ensure safety for both the mother and child.

Drug Interactions

Antacids may interact with certain prescription medications, potentially affecting their efficacy. It is advisable for patients to consult a healthcare professional, such as a doctor or pharmacist, prior to using antacids if they are currently taking other medications. This precaution helps ensure safe and effective use of both antacids and concurrent therapies.

No specific drug interactions or laboratory test interactions have been identified for this medication.

Packaging & NDC

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

Packaging configurations for Supreme Antacid.
Details

Pediatric Use

Pediatric patients under 12 years of age should consult a healthcare professional before use. For adolescents and adults aged 12 years and older, the recommended dosage is 2 to 4 teaspoonfuls taken between meals, at bedtime, or as directed by a physician. It is important to note that the maximum dosage should not exceed 18 teaspoonfuls within a 24-hour period, and the maximum dosage should not be used for more than 2 weeks. Additionally, this product should be kept out of reach of children to ensure safety.

Geriatric Use

There is no specific information available 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. It is advisable to monitor these patients closely for any adverse effects or changes in efficacy.

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 weighed, as the effects on fetal outcomes and lactation are not fully established. It is essential for women of childbearing potential to seek medical advice to ensure the safety of both the mother and the developing fetus.

Lactation

Lactating mothers are advised to consult a health 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 should consult a healthcare professional prior to use, particularly if they have a history of kidney disease. It is essential to assess renal function and consider potential dosing adjustments or monitoring requirements based on the degree of impairment.

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 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 range from mild to severe and may include altered mental status, cardiovascular instability, respiratory distress, and gastrointestinal disturbances.

In the event of suspected overdosage, immediate medical evaluation is recommended. Healthcare professionals should assess the patient's vital signs and conduct a thorough clinical examination. Supportive care should be initiated as necessary, which may include airway management, intravenous fluids, and monitoring of vital parameters.

If specific antidotes or treatments are available for the substance involved, they should be administered according to established protocols. Consultation with a poison control center or a medical toxicologist may also be beneficial in managing the case effectively.

It is crucial to document all findings and interventions in the patient's medical record to ensure continuity of care and facilitate further management.

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 in these areas limits the understanding of the compound's potential effects in nonclinical settings.

Postmarketing Experience

No postmarketing experience details are provided in the insert.

Patient Counseling

Healthcare providers should advise patients to keep this medication out of reach of children to prevent accidental ingestion or misuse. It is important to emphasize the necessity of proper storage to ensure the safety of young children.

Storage and Handling

The product is supplied in a configuration that requires careful handling to maintain its quality. After opening, it is essential to refrigerate the product to preserve its freshness and purity. Freezing is not permitted, as it may compromise the integrity of the product. Additionally, the container must be kept tightly closed when not in use to prevent contamination and ensure optimal storage conditions.

Additional Clinical Information

The medication is administered orally, with the recommended dosage for adults and children aged 12 years and older being 2 to 4 teaspoonfuls between meals or at bedtime, as directed by a healthcare provider. It is important not to exceed 18 teaspoonfuls within a 24-hour period or to use the maximum dosage for more than two weeks. For children under 12 years, consultation with a doctor is advised prior to use.

Clinicians should counsel patients to seek medical advice before use if they have kidney disease or are on a magnesium-restricted diet. Additionally, patients should consult a healthcare professional if they are currently taking prescription medications, as antacids may interact with certain drugs. Patients are advised to discontinue use and consult a doctor if symptoms persist for more than two weeks, and pregnant or breastfeeding individuals should seek professional guidance before use. It is also crucial to keep the medication out of reach of children.

Drug Information (PDF)

This file contains official product information for Supreme 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 Supreme 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.