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Maximum Strength Antacid

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Active ingredients
  • Dimethicone 80 mg/10 mL
  • Aluminum Hydroxide 800 mg/10 mL
  • Magnesium Hydroxide 800 mg/10 mL
Other brand names
Drug classes
Calculi Dissolution Agent, Osmotic Laxative
Dosage form
Suspension
Route
Oral
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2020
Label revision date
May 19, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredients
  • Dimethicone 80 mg/10 mL
  • Aluminum Hydroxide 800 mg/10 mL
  • Magnesium Hydroxide 800 mg/10 mL
Other brand names
Drug classes
Calculi Dissolution Agent, Osmotic Laxative
Dosage form
Suspension
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 2020
Label revision date
May 19, 2025
Manufacturer
CVS PHARMACY
Registration number
M001
NDC root
69842-619
Drug Information (PDF)
Prescribing information, PDF file
Packaging Info
Packaging & NDC Codes

If you are a healthcare professional or from the pharmaceutical industry please visit this version.

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

Drug Overview

You may find this medication helpful if you experience discomfort from heartburn, sour stomach, acid indigestion, or gas. It is designed to relieve these common digestive issues, providing you with some much-needed comfort. If you're looking for a solution to these symptoms, this medication could be a suitable option for you.

Uses

If you're experiencing discomfort from heartburn, a sour stomach, or acid indigestion, this medication can help relieve those symptoms. It also addresses issues related to gas, providing you with some much-needed comfort.

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. Enjoy relief from your digestive discomfort and get back to feeling your best.

Dosage and Administration

Before you use this medication, make sure to shake the bottle well. For adults and children aged 12 years and older, the recommended dose is between 10 mL to 20 mL, which you can take as 1 to 2 doses. It's best to take this medication between meals or at bedtime, unless your doctor gives you different instructions.

If your child is under 12 years old, it's important to consult with a doctor before giving them this medication. Always follow your healthcare provider's guidance to ensure safe and effective use.

What to Avoid

It's important to keep this medication out of reach of children to ensure their safety. There are no specific contraindications, controlled substance classifications, or concerns regarding abuse, misuse, or dependence associated with this medication. Always follow safety guidelines to use it responsibly.

Side Effects

You should be aware of some important warnings and potential side effects when using this medication. It is crucial not to exceed 60 mL (6 doses) in a 24-hour period or to use the maximum dosage for more than 2 weeks. If you have kidney disease or are on a magnesium-restricted diet, consult your doctor before using this product. Additionally, if you are taking any prescription medications, check with your doctor or pharmacist, as antacids can interact with certain drugs.

If your symptoms persist for more than 2 weeks, stop using the medication and seek medical advice. If you are pregnant or breastfeeding, it's important to consult a healthcare professional before use.

Warnings and Precautions

It's important to use this medication safely. Do not take more than 60 mL (6 doses) in a 24-hour period, and avoid using the maximum dosage for more than 2 weeks. If you have kidney disease or are on a magnesium-restricted diet, please consult your doctor before using this product. Additionally, if you are currently taking any prescription medications, check with your doctor or pharmacist, as antacids can interact with certain drugs.

If your symptoms persist for more than 2 weeks, stop using the medication and contact your doctor. If you are pregnant or breastfeeding, it's essential to speak with a healthcare professional before using this product. Always prioritize your health and safety by following these guidelines.

Overdose

Taking more than 60 mL (which is equivalent to 6 doses) of this medication within a 24-hour period, or using the maximum dosage for longer than 2 weeks, can lead to an overdose. It's important to stick to the recommended dosage to avoid potential health risks.

If you suspect an overdose, look for signs such as unusual drowsiness, confusion, or difficulty breathing. If you notice any of these symptoms, seek immediate medical help. Always prioritize your safety by following the dosage guidelines provided.

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 with a doctor before using this medication. For adults and children aged 12 and older, the recommended dosage is between 10 mL to 20 mL, which can be taken as one or two doses. This should be done between meals, at bedtime, or as directed by a healthcare professional. Always follow your doctor's advice to ensure safe and effective use.

Geriatric Use

If you are an older adult or caring for one, it's important to be cautious when using certain medications. Before starting any new medication, especially if you have kidney disease (a condition where your kidneys do not function properly), you should consult with your doctor. This is crucial because kidney function can affect how your body processes medications.

Additionally, if you are currently taking any prescription drugs, it's wise to talk to your doctor or pharmacist before using new medications. Some antacids can interact with these prescription drugs, potentially affecting their effectiveness or causing side effects. Always prioritize open communication with your healthcare providers to ensure safe and effective treatment.

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 liver function tests (which check how well your liver is working) to ensure your safety while using any medication.

Drug Interactions

It's important to be aware that antacids, which are commonly used to relieve heartburn and indigestion, can interact with some prescription medications. This means that taking antacids at the same time as certain drugs may affect how well those medications work.

To ensure your safety and the effectiveness of your treatment, always discuss any medications you are taking, including over-the-counter products like antacids, with your healthcare provider. They can help you understand potential interactions and adjust your treatment plan if necessary.

Storage and Handling

To ensure the best performance of your product, store it at room temperature, away from extreme temperatures. It's important to protect it from freezing, as this can damage the product. Always keep the container tightly closed when not in use to maintain its integrity and safety. Following these simple guidelines will help you use the product effectively and safely.

Additional Information

You should take this medication orally, with adults and children aged 12 and older advised to take 10 mL to 20 mL (1 to 2 doses) between meals or at bedtime, unless directed otherwise by a doctor. If you are under 12 years old, consult a doctor for the appropriate dosage.

Before using this medication, it's important to talk to 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. If your symptoms persist for more than two 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, and symptoms referred to as gas.

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

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

What should I do if I am under 12 years of age?

If you are under 12 years of age, you should ask a doctor before use.

Are there any warnings I should be aware of?

Do not take more than 60 mL (6 doses) in a 24-hour period or use the maximum dosage for more than 2 weeks. Consult a doctor if you have kidney disease or are on a magnesium-restricted diet.

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

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

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

If your symptoms last more than 2 weeks, you should stop use and ask a doctor.

How should I store this drug?

Store at room temperature, protect from freezing, and keep tightly closed.

Is there any information about drug interactions?

Yes, antacids may interact with certain prescription drugs, so consult a doctor or pharmacist if you are currently taking any.

What should I do if I have kidney disease?

You should ask a doctor before using this drug if you have kidney disease.

Is there a maximum dosage I should not exceed?

Do not exceed 60 mL (6 doses) in a 24-hour period.

Packaging Info

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

Packaging configurations for Maximum Strength Antacid.
Details

Drug Information (PDF)

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

View product document (PDF)

Description

No relevant information is available for SPL code 34089-3.

Uses and Indications

This drug is indicated for the relief of heartburn, sour stomach, acid indigestion, and symptoms associated with gas.

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

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 10 mL to 20 mL, which may be taken as 1 to 2 doses. This should be administered between meals, at bedtime, or as directed by a physician.

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

Contraindications

Use is contraindicated in individuals who are unable to keep the product out of reach of children. This precaution is necessary to prevent accidental ingestion or misuse by pediatric patients. No other contraindications have been identified.

Warnings and Precautions

Patients should not exceed a maximum dosage of 60 mL (6 doses) within a 24-hour period, nor should they utilize the maximum dosage for longer than 2 weeks. Adherence to these guidelines is essential to prevent potential adverse effects associated with overuse.

Prior to initiating treatment, individuals with kidney disease or those adhering to a magnesium-restricted diet are advised to consult a healthcare professional. This precaution is critical to ensure the safe use of the medication in these populations.

Additionally, patients currently taking prescription medications should seek guidance from a doctor or pharmacist before use, as antacids may interact with certain prescription drugs, potentially leading to diminished efficacy or increased side effects.

If symptoms persist beyond 2 weeks, it is imperative to discontinue use and consult a healthcare provider for further evaluation and management.

For pregnant or breastfeeding individuals, it is recommended to consult a health professional prior to use to ensure safety for both the mother and child.

Side Effects

Patients should be aware of the following adverse reactions associated with the use of this medication. It is crucial to adhere to the recommended dosage guidelines, which specify not to exceed 60 mL (6 doses) within a 24-hour period or to use the maximum dosage for more than 2 weeks.

In clinical practice, patients with kidney disease or those on a magnesium-restricted diet should consult a healthcare professional prior to use. Additionally, individuals currently taking prescription medications are advised to seek guidance from a doctor or pharmacist, as antacids may interact with certain prescription drugs.

Patients are also cautioned to discontinue use and consult a healthcare provider if symptoms persist for more than 2 weeks. Furthermore, pregnant or breastfeeding individuals should seek advice from a health professional before using this medication.

Drug Interactions

Antacids may interact with various prescription medications, potentially affecting their absorption and efficacy. It is advisable to monitor the timing of antacid administration in relation to other medications to minimize these interactions. Specifically, antacids should be taken at least 2 hours apart from other drugs to ensure optimal therapeutic outcomes. Healthcare professionals should consider this timing when prescribing medications that may be affected by antacids.

Packaging & NDC

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

Packaging configurations for Maximum Strength 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 10 mL to 20 mL, which may be taken as 1 to 2 doses between meals or at bedtime, or as directed by a healthcare provider.

Geriatric Use

Elderly patients should consult a healthcare provider prior to using this medication, particularly if they have a history of kidney disease. It is essential for geriatric patients to discuss any current prescription medications with their doctor or pharmacist before initiating treatment, as there may be potential interactions.

Additionally, it is important to note that antacids can interact with certain prescription drugs, which may necessitate careful monitoring and possible dose adjustments. Healthcare providers should evaluate the overall medication regimen of elderly patients to ensure safety and efficacy.

Pregnancy

Pregnant patients and those who are breastfeeding should consult a healthcare professional prior to using this medication. It is important to assess the potential risks and benefits, as well as any available data regarding fetal outcomes and lactation. Healthcare providers can offer guidance tailored to individual circumstances, ensuring the safety of both the patient and the developing fetus or nursing 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 drug 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 cases of overdosage, it is critical to adhere to the recommended dosage guidelines to prevent adverse effects. The maximum allowable dosage is 60 mL, which equates to 6 doses, within a 24-hour period. Additionally, the maximum dosage should not be utilized for more than 2 consecutive weeks.

Healthcare professionals should be vigilant for potential symptoms of overdosage, which may arise from exceeding these limits. In the event of suspected overdosage, immediate medical evaluation is advised. Management procedures may include supportive care and symptomatic treatment, tailored to the specific symptoms presented by the patient.

It is essential for healthcare providers to educate patients on the importance of adhering to the prescribed dosage to mitigate the risk of overdosage and its associated complications.

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 use of the compound in question. Further studies may be necessary to elucidate these aspects of nonclinical toxicology.

Postmarketing Experience

No postmarketing experience details are provided in the insert.

Patient Counseling

Healthcare providers should advise patients to keep the 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 configurations that include specific NDC numbers. It should be stored at room temperature, ensuring that it is protected from freezing conditions. Additionally, it is essential to keep the container tightly closed to maintain the integrity of the product.

Additional Clinical Information

The medication is administered orally, with the recommended dosage for adults and children aged 12 years and older being 10 mL to 20 mL (1 to 2 doses) taken between meals or at bedtime, as directed by a healthcare provider. For children under 12 years of age, consultation with a doctor is advised prior to use.

Clinicians should counsel patients to seek medical advice before using the medication if they have kidney disease or are on a magnesium-restricted diet. Additionally, patients should consult a doctor or pharmacist if they are currently taking any prescription medications. They are advised to discontinue use and consult a healthcare professional if symptoms persist for more than two weeks. Pregnant or breastfeeding individuals should also 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 Maximum Strength 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 Maximum Strength 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.