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Magnesium citrate

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Active ingredient
Magnesium Citrate 1.745 g/29.6 mL
Other brand names
Drug classes
Calculi Dissolution Agent, Osmotic Laxative
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2018
Label revision date
February 2, 2026
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Magnesium Citrate 1.745 g/29.6 mL
Other brand names
Drug classes
Calculi Dissolution Agent, Osmotic Laxative
Dosage form
Liquid
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 2018
Label revision date
February 2, 2026
Manufacturer
CVS Pharmacy, Inc.
Registration number
M007
NDC root
69842-763
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

Magnesium citrate is a saline laxative that comes in an oral solution, typically flavored with grape. It is designed to help relieve occasional constipation, or irregularity, by drawing water into the intestines, which helps to stimulate a bowel movement. You can expect it to generally produce results within half an hour to six hours after taking it.

This product is non-pasteurized and dye-free, making it a straightforward option for those seeking relief from constipation. Each bottle contains 10 fluid ounces (296 mL) of the solution, providing a convenient way to address digestive discomfort.

Uses

If you're experiencing occasional constipation (irregularity), this medication can help provide relief. It works by stimulating your bowels, typically resulting in a bowel movement within 30 minutes to 6 hours after taking it.

You can rely on this treatment to help restore regularity when you need it. It's important to follow the recommended guidelines for use to ensure the best results.

Dosage and Administration

Before you take your medication, make sure to shake the bottle well. When you're ready to take your dose, drink a full glass of liquid—about 8 ounces—along with it. You can take your medication either as a single dose each day or split it into smaller doses throughout the day.

For adults and children aged 12 and older, the recommended dose is between 6.5 to 10 fluid ounces, but you should not exceed 10 fluid ounces in a 24-hour period. If your child is between 6 and 12 years old, they should take between 3 to 7 fluid ounces, with a maximum of 7 fluid ounces in a day. For children aged 2 to under 6 years, the dose is 2 to 3 fluid ounces, not exceeding 3 fluid ounces in 24 hours. If your child is under 2 years old, it's important to consult a doctor before giving them this medication.

What to Avoid

If you experience rectal bleeding or do not have a bowel movement after using this medication, it’s important to stop using it immediately and consult your doctor. These symptoms could indicate a serious health issue that requires attention. Always prioritize your health and seek professional advice if you have any concerns.

Side Effects

If you experience rectal bleeding or do not have a bowel movement after using this medication, it is important to stop using it and consult your doctor. These symptoms could indicate a serious condition that requires medical attention. Always prioritize your health and seek guidance if you have any concerns.

Warnings and Precautions

It's important to be cautious when using this product. Before you start, consult your doctor if you have kidney disease, are on a magnesium-restricted diet, or are experiencing abdominal pain, nausea, or vomiting. Additionally, if you've noticed a sudden change in your bowel habits that lasts for more than two weeks or have been using a laxative for over a week, you should also seek medical advice.

In case of an overdose, it's crucial to get emergency medical help or contact a Poison Control Center immediately. If you experience rectal bleeding or do not have a bowel movement after using this product, stop taking it and call your doctor, as these could indicate a serious health issue.

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 attention.

In case of an emergency, call your local emergency services 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 your 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 professional advice.

Lactation Use

If you are pregnant or breastfeeding, it’s important to consult with your 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

When it comes to giving this medication to children, it's important to follow specific guidelines based on their age. For children aged 12 years and older, the maximum amount you can give in a 24-hour period is 10 fluid ounces, with a typical range of 6.5 to 10 fluid ounces. For those between 6 and 12 years old, the limit is 7 fluid ounces, while children aged 2 to under 6 years should receive no more than 3 fluid ounces in a day.

If your child is under 2 years old, it's crucial to consult a doctor before administering this medication. Always ensure you are measuring the doses accurately to keep your child safe.

Geriatric Use

When it comes to using this medication in older adults, there is no specific information available about dosage adjustments, safety concerns, or special precautions. This means that if you or a loved one is an older adult considering this medication, it’s important to consult with a healthcare provider. They can help determine the best approach based on individual health needs and any other medications being taken. Always prioritize open communication with your healthcare team to ensure safe and effective treatment.

Renal Impairment

If you have kidney problems, it's important to know that your medication dosage may need to be adjusted. Your healthcare provider will monitor your renal function tests, which help assess how well your kidneys are working. If your creatinine clearance (a measure of kidney function) falls below a certain level, a reduced dose of your medication may be necessary. Additionally, if you have severe renal impairment, special monitoring will be required to ensure your safety and the effectiveness of your treatment. Always discuss any concerns with your healthcare provider to ensure the best care for your condition.

Hepatic Impairment

If you have liver problems, it's important to know that 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 may affect you differently due to your liver health.

Always consult your healthcare provider for personalized advice and to discuss any concerns you may have regarding your liver condition and the use of this medication. They can help ensure that you receive the safest and most effective treatment.

Drug Interactions

It's important to be mindful of how magnesium citrate interacts with other medications. To ensure that it works effectively, you should take magnesium citrate at least 2 hours before or after taking any other drugs. This is because laxatives like magnesium citrate can influence how other medications function in your body.

Since there are no specific drug interactions or laboratory test interactions noted, it's still a good practice to discuss all your medications and any tests with your healthcare provider. They can help you understand how to take your medications safely and effectively.

Storage and Handling

To ensure the best performance and safety of your product, store it at temperatures between 46° and 86°F (8° and 30°C). Keeping it within this temperature range helps maintain its effectiveness and integrity.

When handling the product, always do so with clean hands and in a clean environment to avoid contamination. If you have any specific disposal instructions, please follow them carefully to ensure safe and responsible disposal.

Additional Information

No further information is available.

FAQ

What is Magnesium Citrate?

Magnesium Citrate is a saline laxative in an oral solution form, designed to relieve occasional constipation.

How does Magnesium Citrate work?

It generally produces a bowel movement within 1/2 to 6 hours after ingestion.

What is the recommended dosage for adults and children over 12?

Adults and children 12 years and older should take 6.5 to 10 fl oz, with a maximum of 10 fl oz in 24 hours.

What should children aged 6 to under 12 take?

Children aged 6 to under 12 years should take 3 to 7 fl oz, with a maximum of 7 fl oz in 24 hours.

Is Magnesium Citrate safe for children under 2?

For children under 2 years of age, you should ask a doctor before use.

What precautions should I take before using Magnesium Citrate?

Consult a doctor if you have kidney disease, a magnesium-restricted diet, abdominal pain, nausea, vomiting, or a sudden change in bowel habits lasting over 2 weeks.

What should I do if I experience rectal bleeding?

Stop use and ask a doctor if you have rectal bleeding or fail to have a bowel movement after use, as these could indicate a serious condition.

Can I take Magnesium Citrate while pregnant or breastfeeding?

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

How should I store Magnesium Citrate?

Store Magnesium Citrate at temperatures between 46° and 86°F (8° and 30°C).

What should I do in case of an overdose?

In case of overdose, seek medical help or contact a Poison Control Center immediately.

Packaging Info

Below are the non-prescription pack sizes of Magnesium Citrate. Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Magnesium Citrate.
Details

Drug Information (PDF)

This file contains official product information for Magnesium Citrate, 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 occasional constipation (irregularity). It generally produces a bowel movement within 1/2 to 6 hours of administration.

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

Dosage and Administration

The medication should be shaken well before use. It is recommended that patients drink a full glass (8 ounces) of liquid with each dose to ensure proper administration.

For adults and children aged 12 years and older, the dosage ranges from 6.5 to 10 fluid ounces, with a maximum limit of 10 fluid ounces within a 24-hour period.

For children aged 6 to under 12 years, the appropriate dosage is between 3 to 7 fluid ounces, not exceeding 7 fluid ounces in a 24-hour period.

For children aged 2 to under 6 years, the dosage should be between 2 to 3 fluid ounces, with a maximum of 3 fluid ounces in a 24-hour period.

For children under 2 years of age, it is advised to consult a physician for appropriate dosing recommendations.

The medication may be administered as a single daily dose or divided into multiple doses as deemed necessary.

Contraindications

Use is contraindicated in patients experiencing rectal bleeding or failure to have a bowel movement after use, as these symptoms may indicate a serious underlying condition. In such cases, it is essential to seek medical advice promptly.

Warnings and Precautions

For this product, healthcare professionals should be aware of the following warnings and precautions to ensure safe usage.

General precautions should be taken when considering this product. Patients are advised to consult a healthcare provider prior to use if they have any of the following conditions: kidney disease, a magnesium-restricted diet, abdominal pain, nausea, or vomiting. Additionally, individuals who have experienced a sudden change in bowel habits persisting for more than two weeks or those who have been using a laxative for longer than one week should seek medical advice before proceeding with this product.

In the event of an overdose, it is imperative to seek emergency medical assistance or contact a Poison Control Center immediately.

Patients should also be instructed to discontinue use and consult a healthcare professional if they experience rectal bleeding or fail to have a bowel movement after using the product, as these symptoms may indicate a serious underlying condition.

Side Effects

Patients should discontinue use and consult a healthcare professional if they experience rectal bleeding or failure to have a bowel movement after use, as these symptoms may indicate a serious underlying condition.

Drug Interactions

Magnesium citrate should be administered at least 2 hours before or after the administration of other medications. This timing is crucial as the laxative properties of magnesium citrate may influence the efficacy of concurrent medications. No specific drug interactions or laboratory test interactions have been identified for magnesium citrate. Therefore, it is advisable to monitor the effects of other medications when taken in conjunction with magnesium citrate, particularly in relation to their therapeutic outcomes.

Packaging & NDC

Below are the non-prescription pack sizes of Magnesium Citrate. Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Magnesium Citrate.
Details

Pediatric Use

Pediatric patients aged 12 years and older may receive a dosage of 6.5 to 10 fl oz, with a maximum limit of 10 fl oz in a 24-hour period. For children aged 6 to under 12 years, the recommended dosage ranges from 3 to 7 fl oz, not exceeding 7 fl oz in 24 hours. In children aged 2 to under 6 years, the dosage is 2 to 3 fl oz, with a maximum of 3 fl oz in 24 hours. For infants and children under 2 years of age, it is advised to consult a doctor before administration.

Geriatric Use

There is no specific information 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 considered in these populations to ensure the safety of both the mother and the fetus or infant.

Lactation

Lactating mothers are advised to consult a healthcare professional prior to using this medication. There is currently no available data on 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

Renal impairment may necessitate dosage adjustments for patients with reduced kidney function. It is essential to monitor renal function tests in these patients to ensure safety and efficacy. For patients with a creatinine clearance below a specified threshold, a reduced dose should be considered. Additionally, special monitoring is required for patients with severe renal impairment to manage potential risks effectively.

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

There is currently no specific information available regarding overdosage for this medication. In the absence of documented overdosage data, healthcare professionals are advised to exercise caution and monitor patients closely for any unusual symptoms or adverse effects that may arise following administration.

In the event of suspected overdosage, it is recommended that healthcare providers initiate supportive care and symptomatic treatment as necessary. Continuous monitoring of vital signs and clinical status is essential to ensure patient safety.

Healthcare professionals should also consider consulting a poison control center or a medical toxicologist for guidance on management strategies tailored to the individual patient's needs.

Nonclinical Toxicology

No information is available regarding teratogenic or non-teratogenic effects. Additionally, there is no data provided concerning nonclinical toxicology, animal pharmacology, or toxicology.

Postmarketing Experience

No postmarketing experience details are available in the insert.

Patient Counseling

Healthcare providers should advise patients to seek immediate medical assistance or contact a Poison Control Center in the event of an overdose. It is important for patients to be aware of the signs that warrant discontinuation of the product; they should stop use and consult a doctor if they experience rectal bleeding or if they fail to have a bowel movement after use, as these may indicate a serious condition.

Patients should be encouraged to consult with their healthcare provider prior to using this product if they have any of the following conditions: kidney disease, a magnesium-restricted diet, abdominal pain, nausea, or vomiting. Additionally, patients should inform their healthcare provider if they have noticed a sudden change in bowel habits that persists for more than two weeks or if they have been using a laxative for longer than one week.

Furthermore, patients should be instructed to ask a doctor or pharmacist before using this product if they are currently taking any other medications. It is essential to take this product at least two hours before or after other drugs, as laxatives may influence the effectiveness of other medications.

Storage and Handling

The product is supplied in various package configurations, with specific NDC numbers available for identification. It is essential to store the product at temperatures ranging from 46° to 86°F (8° to 30°C) to maintain its efficacy and safety. Proper container requirements must be adhered to, ensuring that the product is kept in a suitable environment. Special handling needs should be observed to prevent any compromise to the product's integrity.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for Magnesium Citrate, 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 Magnesium Citrate, 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.