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Antacid and Antigas

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Active ingredients
  • Dimethicone 80 mg/10 mL
  • Calcium Carbonate 800 mg/10 mL
  • Magnesium Hydroxide 270 mg/10 mL
Other brand names
Drug classes
Blood Coagulation Factor, Calculi Dissolution Agent, Osmotic Laxative, Phosphate Binder
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2025
Label revision date
December 23, 2025
Active ingredients
  • Dimethicone 80 mg/10 mL
  • Calcium Carbonate 800 mg/10 mL
  • Magnesium Hydroxide 270 mg/10 mL
Other brand names
Drug classes
Blood Coagulation Factor, Calculi Dissolution Agent, Osmotic Laxative, Phosphate Binder
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2025
Label revision date
December 23, 2025
Manufacturer
Meijer, Inc.
Registration number
M001
NDC root
79481-0655

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If you are a consumer or patient please visit this version.

Drug Overview

You may find this medication helpful if you experience discomfort from heartburn, sour stomach, acid indigestion, or gas. It is designed to relieve these symptoms, including upset stomach that can accompany them. By addressing these common digestive issues, this medication aims to provide you with relief and improve your overall comfort.

Uses

If you're experiencing discomfort from heartburn, sour stomach, or acid indigestion, this medication can help relieve those symptoms. It also addresses issues related to gas and can soothe an upset stomach that comes with these conditions.

By using this medication, you can find relief from the discomfort associated with these common digestive issues, allowing you to feel more comfortable throughout your day.

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 or older, you can take between 10 mL to 20 mL (which is 1 to 2 doses) of the medication. It's best to take it between meals, at bedtime, or as your doctor advises. However, be careful not to exceed 60 mL (or 6 doses) in a 24-hour period, and avoid using the maximum dosage for more than 2 weeks.

If your child is under 12 years old, it's important to consult a doctor before giving them this medication. When measuring your dose, use the dosing cup that comes with the medication to ensure accuracy. Remember, 1 mL is equal to one milliliter, which is a standard unit of measurement for liquid medications.

What to Avoid

You can feel confident using this medication, as there are no specific contraindications (conditions that would make the drug unsafe for you) or controlled substance classifications associated with it. Additionally, there are no known risks of abuse, misuse, or dependence (a condition where your body becomes reliant on a substance) linked to this medication.

Since there are no specific "do not take" or "do not use" instructions, you can proceed with your treatment as directed by your healthcare provider. Always remember to discuss any concerns or questions with them to ensure the best outcomes for your health.

Side Effects

Before using this medication, it's important to consult with 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, as antacids can interact with some of these 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, please seek advice from a healthcare professional before using this product. Remember to 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, it's important to be aware of the general signs of an overdose, which can include symptoms like extreme drowsiness, confusion, or difficulty breathing. If you suspect an overdose, it is crucial to seek immediate medical help.

In case of an emergency, you should call your local emergency number or go to the nearest hospital. Always keep your medications in a safe place and follow the prescribed dosage to prevent any potential risks. If you have any concerns or questions about your medication, don’t hesitate to reach out to your healthcare provider for guidance.

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 you are considering using this medication for your child, it's important to know that children under 12 years of age should consult a doctor before use. This ensures that the treatment is safe and appropriate for their specific needs. Always prioritize your child's health by seeking professional advice when it comes to medications.

Geriatric Use

If you are an older adult or caring for one, it's important to consult with a doctor before using this medication, especially if there is a history of kidney disease. Additionally, if you are currently taking any prescription medications, check with your doctor or pharmacist first, as antacids can interact with certain drugs.

For adults and children aged 12 and older, the recommended dosage is between 10 mL to 20 mL (1 to 2 doses) taken between meals, at bedtime, or as directed by a healthcare professional. Be cautious not to exceed 60 mL (6 doses) in a 24-hour period, and avoid using the maximum dosage for more than two weeks. If the user is under 12 years old, please consult a doctor for guidance.

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 there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that the standard recommendations apply, but you should always consult your healthcare provider for personalized advice. They can help determine the best approach for your treatment and monitor your liver function as needed.

Make sure to keep your doctor informed about your liver health, as they may want to conduct regular tests to ensure your safety while using any medication. Your well-being is a priority, so don't hesitate to ask questions or express any concerns you may have.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. While there are no specific drug interactions or laboratory test interactions noted for this medication, your healthcare provider can help ensure that everything you are taking works well together and is safe for you. Always share your complete list of medications and any recent lab tests to avoid any potential issues. Your health and safety should always come first.

Storage and Handling

To ensure the best performance of your product, store it at room temperature in a tightly closed container. Avoid freezing, as this can damage the product and affect its effectiveness.

When handling the product, make sure to keep it in a clean environment to maintain its quality and safety. Always follow these storage and handling guidelines to ensure optimal use.

Additional Information

You can take this medication orally, with adults and children aged 12 and older typically taking 10 mL to 20 mL (1 to 2 doses) between meals, at bedtime, or as directed by a doctor. It's important to consult your doctor before using this medication 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 of them.

If your symptoms persist for more than two weeks, stop using the medication and consult your doctor. Pregnant or breastfeeding individuals should also seek advice from a healthcare professional before use. Remember to keep this medication out of reach of children.

FAQ

What symptoms does this drug relieve?

This drug relieves heartburn, sour stomach, acid indigestion, gas symptoms, and upset stomach associated with these symptoms.

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

Adults and children 12 years and older should take 10 mL to 20 mL (1 to 2 doses) between meals as needed, at bedtime, or as directed by a doctor.

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

Do not take more than 60 mL (6 doses) in any 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 for more than 2 weeks.

How should I store this drug?

Store at room temperature tightly closed and do not freeze.

What should I do if I am taking other prescription drugs?

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

What should I do if I have children under 12 years of age?

For children under 12 years of age, ask a doctor before use.

Is there any specific instruction for use?

Shake well before use and measure with the dosing cup provided.

Packaging Info

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

Packaging configurations for Antacid and Antigas.
Details

Drug Information (PDF)

This file contains official product information for Antacid and Antigas, 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, sour stomach, acid indigestion, and symptoms associated with gas. It also alleviates upset stomach related to these conditions.

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

Dosage and Administration

The medication should be shaken well before use. For adults and children aged 12 years and older, the recommended dosage is 10 mL to 20 mL, which may be taken as 1 to 2 doses between meals as needed, at bedtime, or as directed by a healthcare professional. It is important not to exceed a total of 60 mL (6 doses) 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 healthcare professional for appropriate dosing. The medication should be measured using the dosing cup provided to ensure accurate administration.

Contraindications

There are no contraindications associated with the use of this product. It is deemed safe for use in the absence of specific conditions or situations that would warrant avoidance.

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 to prevent accidental ingestion.

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, it is recommended that pregnant or breastfeeding individuals consult a health professional prior to using this medication.

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 Antacid and Antigas (calcium carbonate, magnesium hydroxide, simethicone). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Antacid and Antigas.
Details

Pediatric Use

Pediatric patients under 12 years of age should consult a healthcare professional prior to use. It is important for caregivers to seek medical advice to ensure the safety and appropriateness of treatment for this age group.

Geriatric Use

Elderly patients should exercise caution when using this medication, particularly those aged 65 and older, as they may have an increased risk of adverse effects. It is advisable for geriatric patients to consult a healthcare provider before use, especially if they have a history of kidney disease.

Additionally, elderly patients who are currently taking prescription medications should seek guidance from a doctor or pharmacist prior to using this product, as antacids may interact with certain prescription drugs.

For adults and children aged 12 years and older, the recommended dosage is 10 mL to 20 mL (1 to 2 doses) between meals as needed, at bedtime, or as directed by a healthcare professional. It is important for elderly patients to adhere to the maximum dosage limit of 60 mL (6 doses) within a 24-hour period and to avoid using the maximum dosage for more than 2 weeks without medical supervision.

For children under 12 years of age, consultation with a doctor is required before administration. Monitoring for efficacy and potential side effects is recommended in geriatric patients to ensure safe and effective use of the medication.

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 mothers.

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 significantly depending on the substance involved and the individual patient’s characteristics. Symptoms may include, but are not limited to, altered mental status, cardiovascular instability, respiratory distress, and gastrointestinal disturbances.

In the event of suspected overdosage, immediate assessment of the patient's condition is crucial. Recommended actions include:

  1. Assessment: Conduct a thorough evaluation of the patient's vital signs and clinical status.

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

  3. Decontamination: If appropriate and within a reasonable time frame, consider gastrointestinal decontamination methods such as activated charcoal, provided the patient is alert and able to protect their airway.

  4. Specific Antidotes: If a specific antidote is available for the substance involved, it should be administered according to established protocols.

Healthcare professionals are encouraged to consult local poison control centers or toxicology experts for guidance on management strategies tailored to the specific circumstances of the overdose. Continuous monitoring and supportive care are paramount until the patient stabilizes or further treatment is determined.

Documentation of the incident, including the substance involved, estimated dose, time of ingestion, and clinical findings, is essential for ongoing management and future reference.

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 available 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 and handling to ensure the safety of young individuals.

Storage and Handling

The product is supplied in a configuration that ensures optimal handling and storage. It must be stored at room temperature, ensuring that the container remains tightly closed to maintain product integrity. It is imperative that the product is not frozen, as freezing may compromise its quality and efficacy.

Additional Clinical Information

Patients aged 12 years and older are advised to take 10 mL to 20 mL (1 to 2 doses) of the medication orally between meals as needed, at bedtime, or as directed by a healthcare provider. Clinicians should counsel patients to consult a doctor before use if they have kidney disease or are on a magnesium-restricted diet. Additionally, patients should seek advice from a doctor or pharmacist if they are currently taking prescription medications, as antacids may interact with certain drugs.

Patients are also instructed to discontinue use and consult a doctor if symptoms persist for more than two weeks. Pregnant or breastfeeding individuals should seek professional guidance before use. It is important to keep the medication out of reach of children.

Drug Information (PDF)

This file contains official product information for Antacid and Antigas, 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 and Antigas, 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.

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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.