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Calcium carbonate/Magnesium hydroxide/Dimethicone, unspecified

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Active ingredients
  • Dimethicone, Unspecified 80 mg/10 mL – 80 mg
  • Calcium Carbonate 800 mg/10 mL – 1330 mg
  • Magnesium Hydroxide 270 mg/10 mL – 270 mg
Reference brand
Rolaids Advanced Antacid Anti-Gas Mixed Berry
Drug classes
Blood Coagulation Factor, Calculi Dissolution Agent, Osmotic Laxative, Phosphate Binder
Dosage forms
  • Liquid
  • Suspension
  • Tablet, Chewable
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2015
Label revision date
January 16, 2026
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Active ingredients
  • Dimethicone, Unspecified 80 mg/10 mL – 80 mg
  • Calcium Carbonate 800 mg/10 mL – 1330 mg
  • Magnesium Hydroxide 270 mg/10 mL – 270 mg
Reference brand
Rolaids Advanced Antacid Anti-Gas Mixed Berry
Drug classes
Blood Coagulation Factor, Calculi Dissolution Agent, Osmotic Laxative, Phosphate Binder
Dosage forms
  • Liquid
  • Suspension
  • Tablet, Chewable
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2015
Label revision date
January 16, 2026
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Product Labels (27)
Product Labels (27)

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

Multi Symptom Antacid is a chewable tablet that combines several active ingredients, including calcium carbonate, magnesium hydroxide, and simethicone, to provide relief from multiple digestive discomforts. It is designed to help alleviate heartburn, acid indigestion, sour stomach, and the pressure and bloating commonly referred to as gas. Available in a pleasant berry flavor, this antacid works quickly to soothe your stomach and improve your comfort after meals.

Similarly, Mylanta is a liquid formulation that also targets heartburn and gas-related symptoms. It contains ingredients that help relieve acid indigestion and upset stomach, making it effective for those who experience discomfort after eating or drinking. Mylanta is available in various flavors, including soothing honey chamomile and classic vanilla caramel, providing a smooth and pleasant experience while addressing your digestive needs.

Uses

You can use this medication to relieve various digestive discomforts. It is effective for heartburn, acid indigestion, sour stomach, and upset stomach associated with these symptoms. Additionally, it helps alleviate pressure, bloating, and discomfort commonly referred to as gas, which can occur after eating or drinking too much.

Whether you experience occasional heartburn or discomfort after a heavy meal, this medication can provide quick relief from these symptoms, helping you feel more comfortable.

Dosage and Administration

You can take antacids in either chewable tablet or liquid form, depending on the product you choose. For chewable tablets, you should chew 2 to 4 tablets completely as symptoms occur or as directed by your doctor. Make sure not to swallow the tablets whole. If you are using a liquid antacid, shake the bottle well before use and measure the dose with the provided dosing cup. Adults and children aged 12 years and older can take 10 mL to 20 mL (1 to 2 doses) as needed, between meals, or at bedtime.

Do not exceed 60 mL (6 doses) in any 24-hour period, and avoid using the maximum dosage for more than 2 weeks. If you are under 12 years old, consult your doctor before using these products.

What to Avoid

You should avoid taking more than 8 tablets of antacid products in a 24-hour period, or more than 7 tablets for specific brands, and do not use the maximum dosage for more than 2 weeks unless advised by a physician. If you have kidney disease or are on a magnesium-restricted diet, consult a doctor before use. Always keep these products out of reach of children, and in case of overdose, seek medical help or contact a poison control center immediately.

Side Effects

You should be aware of several important warnings and guidelines when using antacids. If you have kidney disease or are on a magnesium-restricted diet, consult a doctor before use. Additionally, if you are currently taking prescription medications, it's crucial to speak with a healthcare professional, as antacids may interact with these drugs.

When using these products, do not exceed the recommended dosage: typically, no more than 5 to 8 tablets in a 24-hour period, and avoid using the maximum dosage for more than 2 weeks unless directed by a physician. Always keep these medications out of reach of children, and in case of overdose, seek medical help immediately or contact a poison control center.

Warnings and Precautions

  • Before using any antacid, ask your doctor or pharmacist if you are currently taking a prescription medication, as antacids can interact with certain drugs. If you have kidney disease or are on a magnesium-restricted diet, consult your doctor before use.

  • Do not exceed the recommended dosage: typically, do not take more than 7 to 8 tablets in a 24-hour period, and avoid using the maximum dosage for more than 2 weeks unless directed by a physician.

  • If you experience symptoms that last longer than 2 weeks, stop using the product and consult your doctor. In case of an overdose, seek immediate medical help or contact a poison control center at 1-800-222-1222. Always keep these products out of reach of children.

Overdose

If you suspect an overdose of an antacid or anti-gas medication, it's important to seek medical help immediately or contact a poison control center at 1-800-222-1222. Signs of an overdose can vary, but may include symptoms like nausea, vomiting, or unusual drowsiness.

To prevent overdose, be sure to follow the dosage instructions on the label. For most antacid tablets, do not take more than 8 tablets in a 24-hour period, and avoid using the maximum dosage for more than 2 weeks unless directed by a healthcare professional. Always consult with your doctor if you have any questions or concerns about your medication.

Pregnancy Use

If you are pregnant or planning to become pregnant, it is important to consult a healthcare provider before using any antacid products. The safety of these medications during pregnancy has not been established, and potential risks to the fetus are not clearly defined. While some products do not provide specific safety information or dosage modifications for pregnant individuals, caution is advised, especially if you are taking other medications.

Always seek professional advice to ensure the best care for you and your baby. If you are breastfeeding, the same recommendation applies—consult a healthcare professional before use.

Lactation Use

You may be wondering about the safety of using antacids while breastfeeding. Most antacid products, including Rolaids and Walgreen, do not provide specific warnings or recommendations for nursing mothers. There is generally no information available regarding whether these products are excreted in breast milk (meaning they pass into breast milk) or any potential risks to your infant. However, some products suggest that you consult a healthcare professional if you are pregnant or breastfeeding, especially if you are considering using a product that may have unknown effects on a nursing infant.

If you are using an antacid that indicates a potential for excretion in breast milk, it is advisable to discuss this with your doctor to ensure the safety of both you and your baby.

Pediatric Use

When using antacids, it's important to keep them out of reach of children. For children under 12 years old, you should always ask a doctor before use. For those aged 12 and older, the typical dosage is 10 mL to 20 mL (1-2 doses) of liquid antacid between meals or at bedtime, not exceeding 60 mL (6 doses) in a 24-hour period, and this maximum dosage should not be used for more than 2 weeks.

For chewable tablets, children aged 12 and older can chew 2-4 tablets as symptoms occur, but should not exceed 8 tablets in a day or use the maximum dosage for more than 2 weeks. Always consult a doctor or pharmacist if your child is taking other prescription medications, as antacids may interact with them.

Geriatric Use

If you are an older adult or a caregiver, it's important to be aware of some general guidelines when using antacids. While many antacid products do not provide specific information for elderly patients, there are a few key precautions to consider:

  • Kidney Health: Always consult a doctor before using antacids if you have kidney disease, as these medications can affect kidney function.

  • Drug Interactions: If you are taking any prescription medications, check with your doctor or pharmacist before using antacids, as they may interact with certain drugs.

  • Dosage Recommendations: For adults and children aged 12 and older, the typical dosage is 10 mL to 20 mL (1 to 2 doses) between meals or at bedtime, not exceeding 60 mL (6 doses) in a 24-hour period. Avoid using the maximum dosage for more than 2 weeks unless directed by a healthcare professional.

  • Children Under 12: Always consult a doctor before giving antacids to children under 12 years of age.

Taking these precautions can help ensure safe and effective use of antacids.

Renal Impairment

When considering the use of antacids, it's important to be aware of your kidney health. For several products, including Mylanta and Rolaids, you should consult a doctor before use if you have kidney disease. This precaution is essential as certain ingredients in antacids may not be suitable for individuals with compromised kidney function. Additionally, if you are taking prescription medications, it's advisable to check with a healthcare professional, as antacids can interact with these drugs.

Most other antacid products do not provide specific guidance regarding renal impairment, dosage adjustments, or monitoring. Therefore, if you have any concerns about your kidney health or are unsure about using these medications, it's best to seek advice from your healthcare provider.

Hepatic Impairment

You may be wondering about the use of various antacids and their implications for liver health. The information available for these products does not specify any concerns regarding liver impairment, meaning there are no recommended dosage adjustments or special monitoring for individuals with liver issues. This includes a range of products such as Mylanta, Rolaids, and other multi-symptom antacids in both tablet and liquid forms.

If you have liver problems, it's always a good idea to consult with your healthcare provider before starting any new medication, even if specific warnings are not provided. Your health and safety are paramount, and a professional can offer personalized advice based on your medical history.

Drug Interactions

When using antacids, it's important to know that they may interact with certain prescription medications. This interaction can affect how well those medications work in your body. Therefore, it's crucial to discuss any medications or tests you are taking with your healthcare provider or pharmacist before using antacids. They can help ensure that your treatments are safe and effective.

While many antacid products do not list specific drug interactions, the potential for interactions exists, so always consult with a professional to avoid any complications.

Storage and Handling

To ensure the effectiveness of your antacid products, store them at room temperature, ideally between 20°-25°C (68°-77°F). Keep them in a dry place, avoiding high humidity, and make sure the containers are tightly closed. For liquid forms, do not freeze them, and always shake well before use.

Before using any product, check that the packaging is intact. Do not use if the inner foil is broken or if the seal under the cap is missing or damaged. Keep all medications out of reach of children, and safely dispose of any product that shows signs of tampering or damage.

FAQ

What is the active ingredient in Antacid Tablets?

Antacid Tablets contain Calcium carbonate (675 mg), Magnesium hydroxide (135 mg), and Simethicone (60 mg).

What symptoms do Antacid Tablets relieve?

They relieve heartburn, acid indigestion, and discomfort from gas, including pressure and bloating.

How should I take Antacid Tablets?

You should chew 2-4 tablets completely as symptoms occur or as directed by a doctor. Do not swallow the tablets whole.

What is the maximum dosage for Antacid Tablets?

Do not take more than 8 tablets in a 24-hour period, and do not use the maximum dosage for more than 2 weeks.

Is it safe to use Antacid Tablets during pregnancy?

The safety of this product during pregnancy has not been established, so consult a healthcare provider if you are pregnant or planning to become pregnant.

Are there any warnings associated with Antacid Tablets?

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

How should I store Antacid Tablets?

Store Antacid Tablets at room temperature and avoid high humidity.

What should I do if the inner seal of the Antacid Tablets is broken?

Do not use the product if the printed inner seal is broken or missing.

What is Rolaids®?

Rolaids® is a multi-symptom advanced antacid and anti-gas product available in various flavors.

What symptoms does Rolaids® relieve?

Rolaids® provides relief from heartburn, sour stomach, acid indigestion, upset stomach, and pressure and bloating commonly referred to as gas.

How should I take Rolaids®?

You should chew 2-3 tablets as symptoms occur, or as directed by your doctor.

What is the maximum dosage for Rolaids®?

Do not take more than 7 tablets in a 24-hour period, and do not use the maximum dosage for more than 2 weeks.

Are there any contraindications for Rolaids®?

No specific contraindications are mentioned for Rolaids®.

Is Rolaids® safe to use during pregnancy?

The insert does not provide specific information regarding the use of Rolaids® during pregnancy.

Can nursing mothers use Rolaids®?

There are no specific warnings or recommendations regarding the use of Rolaids® for nursing mothers.

How should Rolaids® be stored?

Store Rolaids® at room temperature between 20°-25°C (68°-77°F).

What precautions should I take when using Rolaids®?

Keep Rolaids® out of reach of children and follow the dosage instructions carefully.

What is Mylanta used for?

Mylanta is a liquid antacid and anti-gas medication that relieves heartburn, acid indigestion, sour stomach, upset stomach, and bloating due to gas.

How should I take Mylanta?

Adults and children 12 years and over should take 10 mL-20 mL (1-2 doses) as needed, between meals, or at bedtime. Do not exceed 60 mL (6 doses) in a 24-hour period.

Are there any warnings for using Mylanta?

Yes, you should ask a doctor before use if you have kidney disease or a magnesium-restricted diet. Antacids may also interact with certain prescription drugs.

Can children use Mylanta?

Children under 12 years should ask a doctor before use.

What should I do in case of an overdose?

In case of overdose, get medical help or contact a poison control center right away at 1-800-222-1222.

Is Mylanta safe to use during pregnancy?

The insert does not provide specific information regarding the use of Mylanta during pregnancy, so consult a doctor for advice.

What should nursing mothers know about Mylanta?

Nursing mothers should consult a doctor before using Mylanta, as there is potential for excretion in breast milk and effects on nursing infants are not well studied.

How should Mylanta be stored?

Store Mylanta between 20-25°C (68-77°F) and do not freeze. Ensure the printed seal under the cap is intact before use.

What is Mylanta Tonight?

Mylanta Tonight is a liquid antacid and anti-gas formulation that provides fast relief of heartburn, especially after dinner.

What are the active ingredients in Mylanta Tonight?

The active ingredients include Calcium carbonate, Magnesium hydroxide, and Simethicone.

How should I take Mylanta Tonight?

Adults and children 12 years and over should take 10 mL-20 mL (1-2 doses) between meals or at bedtime, and not exceed 60 mL (6 doses) in a 24-hour period.

Are there any warnings for using Mylanta Tonight?

Yes, you should ask a doctor before use if you have kidney disease or a magnesium restricted diet.

Can children use Mylanta Tonight?

Children under 12 years should ask a doctor before use.

What should I do in case of an overdose with Mylanta Tonight?

In case of overdose, get medical help or contact a poison control center right away at 1-800-222-1222.

Is Mylanta Tonight safe to use during pregnancy or while nursing?

The provided text does not specify any safety concerns regarding use during pregnancy or nursing.

How should I store Mylanta Tonight?

Store Mylanta Tonight between 20-25°C (68-77°F) and do not freeze.

What is WAG Liquid Antacid + Anti-gas?

WAG Liquid Antacid + Anti-gas is a liquid formulation designed for fast relief of heartburn, acid indigestion, and painful gas.

What symptoms does WAG Liquid Antacid relieve?

It relieves heartburn, pressure and bloating (commonly referred to as gas), acid indigestion, sour stomach, upset stomach due to these symptoms, and overindulgence in food and drink.

How should I use WAG Liquid Antacid?

Shake well before use and measure with the dosing cup provided. Adults and children 12 years and over should take 10 mL-20 mL (1-2 doses) as needed, between meals, at bedtime, or as directed by a doctor.

What is the maximum dosage for WAG Liquid Antacid?

Do not take more than 60 mL (6 doses) in any 24-hour period, and do not use the maximum dosage for more than 2 weeks.

Are there any warnings for using WAG Liquid Antacid?

Yes, ask a doctor before use if you have kidney disease or are on a magnesium-restricted diet. Also, consult a doctor or pharmacist if you are taking a prescription drug, as antacids may interact with certain medications.

Is WAG Liquid Antacid safe for children?

Children under 12 years should ask a doctor before use.

What should I do in case of an overdose with WAG Liquid Antacid?

In case of overdose, get medical help or contact a poison control center right away at 1-800-222-1222.

How should I store WAG Liquid Antacid?

Store at room temperature and do not freeze. Discard the product after opening if the printed seal under the cap is broken or missing.

What is Kroger Multi Symptom Antacid Tablets used for?

Kroger Multi Symptom Antacid Tablets are used to relieve heartburn, acid indigestion, gas pressure, and bloating.

How should I take Kroger Multi Symptom Antacid Tablets?

You should chew 2-4 tablets hourly as needed, but do not exceed 8 tablets in a 24-hour period or use the maximum dosage for more than 2 weeks without a doctor's advice.

Are there any warnings associated with this product?

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

Is there any information about using Kroger Multi Symptom Antacid Tablets during pregnancy?

The product does not specifically mention any precautions or dosage modifications for pregnant individuals.

What should I do if the seal on the product is broken?

Do not use the product if the printed seal is broken or missing.

How should I store Kroger Multi Symptom Antacid Tablets?

Store the tablets between 20-25°C (68-77°F) and avoid high humidity.

What flavor do Kroger Multi Symptom Antacid Tablets come in?

They come in a berry flavor.

How many tablets are in a package of Kroger Multi Symptom Antacid Tablets?

Each package contains 100 chewable tablets.

Is there any information regarding the safety of this product for children?

You should keep this product out of reach of children.

What is Rolaids used for?

Rolaids is used for the relief of heartburn, acid indigestion, sour stomach, upset stomach associated with these symptoms, and fullness, pressure, and bloating commonly referred to as gas.

What are the active ingredients in Rolaids?

Rolaids contains calcium carbonate, magnesium hydroxide, and antacid simethicone.

How should I take Rolaids?

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

What is the maximum dosage for Rolaids?

Do not take more than 7 chewable tablets in a 24-hour period, and do not use the maximum dosage for more than 2 weeks without a doctor's advice.

Are there any warnings for using Rolaids?

Yes, ask a doctor before use if you have kidney disease or a magnesium-restricted diet, and consult a doctor or pharmacist if you are taking a prescription drug.

Is Rolaids safe to use during pregnancy or breastfeeding?

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

How should Rolaids be stored?

Store Rolaids at room temperature between 20°-25°C (68°-77°F) and keep it out of reach of children.

What should I do if the seal under the cap is missing or damaged?

Do not use Rolaids if the seal under the cap is missing or damaged.

What is Walgreens Heartburn Plus Gas Relief Tablets used for?

It is used to relieve heartburn, acid indigestion, and discomfort commonly referred to as gas.

How should I take Walgreens Heartburn Plus Gas Relief Tablets?

You should chew 2 to 4 tablets as symptoms occur or as directed by a doctor, but do not take more than 8 tablets in a 24-hour period.

Are there any warnings I should be aware of?

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

Can I use this product if I am pregnant or nursing?

There are no specific safety concerns mentioned for pregnancy, but nursing mothers should consult a doctor before use due to potential excretion in breast milk.

What should I do if I experience side effects?

If you experience any adverse effects, stop taking the product and consult your doctor.

How should I store Walgreens Heartburn Plus Gas Relief Tablets?

Store at room temperature and avoid high humidity.

Is there a satisfaction guarantee for this product?

Yes, Walgreens offers a 100% satisfaction guarantee on this product.

What is Mylanta One?

Mylanta One is an antacid and anti-gas medication that contains three powerful ingredients in one, available as chewable tablets in Lemon Mint flavor.

What symptoms does Mylanta One relieve?

Mylanta One relieves heartburn, acid indigestion, sour stomach, upset stomach, pressure and bloating (gas), and discomfort from overindulgence in food and drink.

How should I take Mylanta One?

Adults and children 12 years and over should chew 1 tablet as symptoms occur, or as directed by a doctor. Do not take more than 6 tablets in 24 hours.

Are there any warnings for using Mylanta One?

Yes, ask a doctor before use if you have kidney disease or a magnesium-restricted diet, and consult a doctor or pharmacist if you are taking prescription drugs, as antacids may interact with them.

Can I use Mylanta One if I am pregnant?

You should ask a doctor before using Mylanta One if you are pregnant or planning to become pregnant, as safety and efficacy in pregnant women have not been established.

Is Mylanta One safe for children?

Children under 12 years of age should ask a doctor before use.

What should I do in case of an overdose?

In case of overdose, get medical help or contact a poison control center right away at 1-800-222-1222.

How should I store Mylanta One?

Store Mylanta One between 20-25°C (68-77°F).

What is Mylanta used for?

Mylanta is used to relieve symptoms such as acid indigestion, heartburn, sour stomach, upset stomach, pressure and bloating (gas), and overindulgence in food and drink.

How should I take Mylanta?

Adults and children 12 years and over should take 10-20 mL (1-2 doses) between meals, at bedtime, or as directed by a doctor. Do not exceed 60 mL in a 24-hour period.

Are there any warnings for using Mylanta?

Yes, ask a doctor before use if you have kidney disease or are on a magnesium-restricted diet. Also, consult a doctor or pharmacist if you are taking prescription drugs, as antacids may interact with them.

Can children use Mylanta?

Children under 12 years should ask a doctor before use.

What should I do in case of an overdose?

In case of overdose, get medical help or contact a Poison Control Center immediately at (1-800-222-1222).

What is the storage requirement for Mylanta?

Store Mylanta between 20-25°C (68-77°F) and do not freeze.

What is the flavor of Mylanta?

Mylanta is available in a chocolate mint flavor.

Is there any information about Mylanta use during pregnancy or lactation?

The provided text does not mention specific warnings or recommendations regarding Mylanta use during pregnancy or lactation.

What is Drug Mart Antacid Tablets used for?

Drug Mart Antacid Tablets are used to relieve heartburn, acid indigestion, gas pressure, and bloating or discomfort commonly referred to as gas.

How should I take Drug Mart Antacid Tablets?

You should chew 2-4 tablets completely as symptoms occur or as directed by a doctor. Do not swallow the tablets whole.

What is the maximum dosage for Drug Mart Antacid Tablets?

Do not take more than 8 tablets in a 24-hour period, and do not use the maximum dosage for more than 2 weeks.

Are there any contraindications for using Drug Mart Antacid Tablets?

No specific contraindications are mentioned for Drug Mart Antacid Tablets.

Can I use Drug Mart Antacid Tablets if I am taking prescription drugs?

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

Is Drug Mart Antacid Tablets safe to use during pregnancy?

The insert does not provide specific information regarding the use of Drug Mart Antacid Tablets during pregnancy.

What should I do if I am dissatisfied with Drug Mart Antacid Tablets?

If you are dissatisfied, you can return the unused portion and package to the store where you purchased it.

How should I store Drug Mart Antacid Tablets?

Store Drug Mart Antacid Tablets at room temperature and avoid high humidity.

What flavor are Drug Mart Antacid Tablets?

They are berry flavored, with both natural and artificial flavors.

Are Drug Mart Antacid Tablets gluten-free?

Yes, Drug Mart Antacid Tablets are gluten-free.

Uses and Indications

This drug is indicated for the relief of heartburn, acid indigestion, sour stomach, and upset stomach associated with these symptoms. It also alleviates pressure, bloating, and discomfort commonly referred to as gas, as well as symptoms due to overindulgence in food and drink.

Limitations of Use

No teratogenic or nonteratogenic effects have been mentioned for this drug.

Dosage and Administration

Adults and children 12 years and older are advised to chew 2 to 4 tablets of the chewable forms as symptoms occur or as directed by a doctor. It is important that the tablets are chewed completely and not swallowed whole. For specific formulations, the following dosages apply:

  • For Rolaids Advanced Antacid, Rolaids Multi-Symptom Advanced Antacid Plus Anti-Gas, and similar products, 2 to 3 tablets may be chewed as symptoms occur or as directed by a healthcare professional.

  • Mylanta One Antacid/Anti-Gas allows for 1 tablet to be chewed as symptoms occur, with a maximum of 6 tablets in a 24-hour period.

For liquid formulations, adults and children 12 years and older should take 10 mL to 20 mL (1 to 2 doses) between meals or at bedtime, as needed, or as directed by a doctor. The maximum dosage should not exceed 60 mL (6 doses) in any 24-hour period, and this maximum dosage should not be used for more than 2 weeks.

All liquid products must be shaken well before use and measured with the dosing cup provided. Children under 12 years of age should consult a doctor before use.

Contraindications

Use of this product is contraindicated in patients with kidney disease and those on a magnesium-restricted diet. Due to the potential for adverse effects, it is advised that individuals with these conditions consult a healthcare professional before use.

Warnings and Precautions

Serious Warnings

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

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

  • If pregnant or breastfeeding, consult a health professional before use.

General Precautions

  • Do not take more than 8 tablets in a 24-hour period, or 5 chews for specific products, and do not use the maximum dosage for more than 2 weeks, except under the advice and supervision of a physician.

  • Keep out of reach of children.

Monitoring Requirements

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

Get Emergency Medical Help Instructions

  • In case of overdose, get medical help or contact a poison control center immediately at 1-800-222-1222.

Side Effects

Patients using antacid products should be aware of the following warnings and potential adverse reactions:

Warnings

  • Patients should consult a doctor or pharmacist before use if they are currently taking a prescription drug, as antacids may interact with certain medications.

  • Individuals with kidney disease or those on a magnesium-restricted diet should seek medical advice prior to use.

  • In case of overdose, patients should seek medical help or contact a poison control center immediately at 1-800-222-1222.

  • If symptoms persist for more than two weeks, patients are advised to stop use and consult a doctor.

  • Pregnant or breastfeeding individuals should consult a healthcare professional before use.

Dosage Recommendations

  • Patients should not exceed the following maximum dosages:

    • 8 tablets in a 24-hour period for certain tablet formulations.

    • 7 tablets in a 24-hour period for other specific formulations.

    • 5 chews in a 24-hour period for select chewable products.

  • The maximum dosage should not be used for more than two weeks unless under the supervision of a physician.

Additional Notes

  • All antacid products should be kept out of reach of children to prevent accidental ingestion.

Patients are encouraged to monitor their symptoms and consult healthcare professionals if they experience any adverse effects or have concerns regarding their use of antacids.

Drug Interactions

Antacids, including various formulations such as tablets, chewables, and suspensions, may interact with certain prescription drugs. These interactions can potentially affect the absorption and efficacy of the medications. It is advisable for patients to consult a healthcare professional, such as a doctor or pharmacist, before using antacids in conjunction with other prescription medications.

While specific drug interaction data is not provided for many antacid products, the general caution regarding their potential interactions remains consistent across multiple labels. Users should be aware that the use of antacids may alter the pharmacokinetics of certain drugs, leading to decreased therapeutic effects. Therefore, monitoring and professional guidance are recommended when combining antacids with other medications.

Pediatric Use

Pediatric patients under 12 years of age should be advised to consult a doctor before using any antacid products.

For children aged 12 years and older, the following dosing recommendations apply:

  • Liquid Formulations:

    • Dosage: 10 mL to 20 mL (1 to 2 doses) as needed, between meals or at bedtime, or as directed by a doctor.

    • Maximum Dosage: Do not exceed 60 mL (6 doses) in any 24-hour period. The maximum dosage should not be used for more than 2 weeks.

  • Tablet and Chewable Formulations:

    • Dosage: Chew 2-3 tablets as symptoms occur, or as directed by a doctor.

    • Maximum Dosage: Do not exceed 8 tablets in a 24-hour period for some products, while others specify a maximum of 5 chews. The maximum dosage should not be used for more than 2 weeks.

Caution is advised as antacids may interact with certain prescription medications. Parents and caregivers should keep all antacid products out of reach of children. In case of overdose, medical help should be sought immediately.

Geriatric Use

No specific information regarding geriatric use, dosage adjustments, safety concerns, or special precautions for elderly patients is provided in the drug inserts for the majority of the antacid products reviewed.

For products that do not specify geriatric considerations, healthcare professionals should exercise caution, particularly in elderly patients who may have comorbidities or be taking multiple medications.

It is advised that elderly patients consult a healthcare provider before using these antacids, especially if they have kidney disease or are on a magnesium-restricted diet, as these conditions may influence the safety and efficacy of the treatment.

For liquid formulations, the recommended dosage for adults and children aged 12 years and older is 10 mL to 20 mL (1 to 2 doses) between meals as needed, with a maximum of 60 mL (6 doses) in any 24-hour period. The maximum dosage should not be used for more than 2 weeks without medical supervision.

Healthcare providers should monitor elderly patients closely for potential drug interactions, particularly if they are taking prescription medications, as antacids may interact with certain drugs.

Pregnancy

The safety of various antacid products during pregnancy has not been firmly established. Pregnant patients are advised to consult a healthcare provider before using these products, particularly if they are planning to become pregnant or are currently pregnant.

Potential risks to the fetus are not clearly defined across the available data, and caution is generally advised. Specific studies or data regarding fetal impacts are lacking, which underscores the importance of professional consultation.

No dosage modifications for pregnant individuals are provided in the product inserts, and there are no explicit contraindications noted for most antacid formulations. However, it is recommended that pregnant patients discuss any use of antacids with their healthcare provider, especially since antacids may interact with other prescription medications that pregnant patients might be taking.

In summary, while some antacid products do not specify safety concerns or special precautions for pregnancy, the general recommendation is to seek professional advice prior to use.

Lactation

There are no specific warnings or recommendations regarding the use of various antacid products in nursing mothers. The available data indicates that for most products, including Multi Symptom Antacid, Rolaids Advanced Antacid Anti-Gas, and Walgreen Liquid Antacid, there is no information provided about the potential for excretion in breast milk or any associated risks to breastfed infants.

However, one product, Heartburn Plus Gas Relief Chewable Multi Symptom, advises nursing mothers to consult a healthcare professional before use, as there is a potential for excretion in breast milk, although the effects on nursing infants are not known. Additionally, several other products recommend that if a mother is pregnant or breastfeeding, she should seek advice from a health professional prior to use.

In summary, while most antacid products do not provide specific lactation-related information, it is prudent for lactating mothers to consult healthcare professionals when considering the use of these medications.

Renal Impairment

Patients with renal impairment should exercise caution when considering the use of certain antacid products. While many labels do not provide specific information regarding dosage adjustments or monitoring for patients with reduced kidney function, several products recommend consulting a healthcare professional prior to use.

For instance, Mylanta products, including Mylanta Classic, Mylanta Vanilla Caramel, Mylanta New Tonight Soothing Honey Chamomile, and Mylanta One Antacid/Anti-Gas, advise patients to "ask a doctor before use" if they have kidney disease. This precaution is echoed in other formulations such as Walgreen and Dg Health suspensions, as well as various liquid antacid products, which similarly recommend consulting a healthcare provider.

It is important for patients with renal impairment to be aware of potential interactions with other medications, particularly when using antacids, as these may affect the absorption of prescription drugs. Therefore, healthcare professionals should be consulted to ensure safe and effective use of these products in patients with compromised kidney function.

Hepatic Impairment

Patients with hepatic impairment do not have specific dosage adjustments, special monitoring, or precautions outlined for the use of the following products: Multi Symptom Antacid, Rolaids Advanced Antacid Anti-Gas (Wild Berry and Mixed Berry), Rolaids Multi-Symptom Advanced Antacid Plus Anti-Gas, Mylanta Classic, Mylanta Vanilla Caramel, Mylanta New Tonight Soothing Honey Chamomile, Walgreen Suspension, Kroger Multi Symptom, Rolaids Heartburn Plus Gas, Heartburn Plus Gas Relief Chewable Multi Symptom, Antacid and Antigas (various formulations), Heb Extra Strength Antacid, Best Choice Extra Strength, Premier Value Multi Symptom Antacid, Dg Health Suspension, and Mylanta Coat and Cool.

As such, no specific recommendations or monitoring parameters are provided for patients with liver problems using these products.

Overdosage

In the event of an overdose, it is crucial to seek medical assistance immediately or contact a poison control center at 1-800-222-1222. This recommendation applies to several liquid formulations, including Mylanta Classic, Mylanta Vanilla Caramel, Mylanta New Tonight Soothing Honey Chamomile, Walgreen, Dg Health, and Mylanta Coat and Cool.

For tablet and chewable forms, it is advised not to exceed the following dosages: no more than 8 tablets in a 24-hour period for Multi Symptom Antacid, Heb Extra Strength Antacid, Best Choice Extra Strength, Premier Value Multi Symptom Antacid, and Kroger Multi Symptom. Additionally, Rolaids Advanced Antacid Anti-Gas Mixed Berry specifies a limit of 7 tablets in a 24-hour period. Users should also refrain from using the maximum dosage for more than 2 weeks unless directed by a physician.

While specific symptoms of overdose are not detailed in the available information, monitoring for adverse effects is recommended, and immediate medical consultation is essential if an overdose is suspected.

Nonclinical Toxicology

Teratogenic Effects

No information regarding teratogenic effects is available for the products reviewed. However, for Rolaids Heartburn Plus Gas, it is advised that individuals who are pregnant or breastfeeding consult a health professional before use.

Non-Teratogenic Effects

No specific non-teratogenic effects have been reported across the reviewed products.

Nonclinical Toxicology Section

The nonclinical toxicology section is not provided for any of the products evaluated.

Animal Pharmacology and Toxicology

There is no available information regarding animal pharmacology and toxicology for the products assessed.

Storage and Handling

Multi Symptom Antacid is available in tablet and chewable forms. Rolaids Advanced Antacid Anti-Gas Wild Berry, Rolaids Multi-Symptom Advanced Antacid Plus Anti-Gas, Rolaids Heartburn Plus Gas, and Rolaids Advanced Softchews Mixed Berry are also offered in tablet and chewable forms. Walgreen and Dg Health are provided as suspensions, while Antacid and Antigas is available in liquid form.

All products should be stored at room temperature, ideally between 20°-25°C (68°-77°F). It is important to avoid high humidity and not to freeze any liquid formulations. For suspensions, it is recommended to shake well before use.

Products should not be used if the inner foil is broken or missing, or if the printed seal under the cap is broken or missing. Additionally, all products should be kept out of reach of children, and tamper-evident seals should be checked for integrity before use.

Product Labels

The table below lists all over-the-counter labels containing calcium carbonate, magnesium hydroxide, and dimethicone, unspecified. Use it to compare dosage forms, strengths, and uses across products.

FDA-Approved Calcium carbonate, magnesium hydroxide, simethicone Labels (Originator & Generics) showing branded and generic formulations with forms, routes, strengths, and FDA approval years.
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Data Generation & Sources

This page was automatically generated and is maintained by the AllDrugs AI Data-Science Team. It consolidates data from 27 FDA Structured Product Labels (DailyMed) for Calcium Carbonate, Magnesium Hydroxide, Simethicone (marketed as Multi Symptom Antacid, Rolaids Advanced Antacid Anti-Gas Wild Berry, Rolaids Multi-Symptom Advanced Antacid Plus Anti-Gas), with data retrieved by a validated AI data-extraction workflow. This includes 27 distinct product formulations. All FDA-listed dosage forms and strengths are aggregated in the sections above. Regulatory status appears in the Summary Information panel and was verified in the FDA National Drug Code directory. Detailed product-specific information is available via the individual label pages linked above. No human clinician has reviewed this version.

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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.