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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 2023
Label revision date
December 16, 2025
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 2023
Label revision date
December 16, 2025
Manufacturer
Meijer Distribution Inc.
Registration number
M007
NDC root
79481-0032
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 form, designed to help relieve occasional constipation (irregularity). It works by drawing water into the intestines, which helps to stimulate a bowel movement, typically within 30 minutes to 6 hours after taking it.

This product is available in a lemon flavor and is both dye-free and sugar-free, making it a gentle option for those seeking relief from constipation.

Uses

If you're experiencing occasional constipation, 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. This can be particularly useful if you're feeling irregular and need a gentle solution to get things moving again.

Dosage and Administration

Before you take this medication, make sure to shake the bottle well. When you're ready to take your dose, drink a full glass (8 ounces) of liquid along with it. You can take this 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 can take 3 to 7 fluid ounces, with a maximum of 7 fluid ounces in a day. For younger children aged 2 to under 6 years, the dose is 2 to 3 fluid ounces, and they should not exceed 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

It's important to be aware of certain situations where you should stop using this medication and consult your doctor. If you experience rectal bleeding or if you do not have a bowel movement after using the product, these could be signs of a serious condition that requires medical attention.

Currently, there are no specific contraindications, controlled substance classifications, or concerns regarding abuse, misuse, or dependence associated with this medication. However, always prioritize your health and safety by following the guidance provided.

Side Effects

If you experience rectal bleeding or do not have a bowel movement after using this product, it’s important to stop using it and consult a doctor, as these could indicate a serious condition. Before using this product, you should also talk to your doctor if you have kidney disease, are on a magnesium-restricted diet, have abdominal pain, nausea, or vomiting, have noticed a sudden change in your bowel habits lasting more than two weeks, or have been using a laxative for more than a week.

Additionally, if you are taking any other medications, it’s advisable to consult with a doctor or pharmacist before use. Make sure to take this product at least two hours before or after other medications, as laxatives can affect how they work.

Warnings and Precautions

Before using this product, it's important to consult your doctor if you have any of the following conditions: kidney disease, are on a magnesium-restricted diet, experience abdominal pain, nausea, or vomiting, have noticed a sudden change in your bowel habits lasting more than two weeks, or have been using a laxative for more than one week. Additionally, if you are taking any other medications, check with your doctor or pharmacist before use, and make sure to take this product at least two hours before or after other drugs, as laxatives can affect how they work.

You should stop using this product and call your doctor if you experience rectal bleeding or do not have a bowel movement after use, as these may indicate a serious health issue. In the event of an overdose, seek emergency medical help or contact a Poison Control Center immediately.

Overdose

If you suspect an overdose, it’s crucial to seek medical help immediately or contact a Poison Control Center. Signs of an overdose can vary, but they may include unusual symptoms that are more severe than what you would typically experience with the medication.

Don’t wait for symptoms to worsen; acting quickly can make a significant difference in your safety and health. Always keep emergency contact numbers handy and be aware of the signs of overdose to ensure you can respond promptly if needed.

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 is between 6.5 to 10 fluid ounces in a 24-hour period. For those aged 6 to under 12 years, the limit is 3 to 7 fluid ounces, while children aged 2 to under 6 years should receive no more than 2 to 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 adhere to these dosage recommendations to keep your child safe and healthy.

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

Hepatic Impairment

If you have liver problems, it's important to know that the drug insert does not provide specific information about dosage adjustments, special monitoring, or precautions for your condition. This means that there are no tailored guidelines for how this medication should be used if you have hepatic impairment (issues with liver function).

Before starting any new medication, including this one, you should discuss your liver health with your healthcare provider. They can help determine the best approach for your treatment and ensure your safety.

Drug Interactions

It's important to be aware that certain medications can interact with each other, which may affect how well they work. For example, if you are taking laxatives like magnesium citrate, it's recommended to take them at least 2 hours before or after other medications. This helps ensure that the laxative does not interfere with the effectiveness of your other drugs.

Always discuss any medications you are taking with your healthcare provider. They can help you understand potential interactions and ensure that your treatment plan is safe and effective.

Storage and Handling

To ensure the best performance of your product, store it in a cool, dry place at temperatures between 46°F and 86°F (8°C and 30°C). This temperature range helps maintain the integrity and effectiveness of the device.

When handling the product, be sure to do so with clean hands and in a sterile field (a clean area free from germs) to prevent contamination. Always follow any specific disposal instructions provided to ensure safety and compliance with local regulations.

Additional Information

No further information is available.

FAQ

What is magnesium citrate used for?

Magnesium citrate is a saline laxative used for the relief of occasional constipation (irregularity).

How quickly does magnesium citrate work?

It generally produces a bowel movement in 1/2 to 6 hours.

What are the dosage recommendations for adults and children over 12?

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

What should children under 2 years of age do before taking magnesium citrate?

Children under 2 years of age should ask a doctor before use.

What should I do if I experience rectal bleeding or failure to have a bowel movement after using magnesium citrate?

You should stop use and ask a doctor, as these could be signs of a serious condition.

Are there any precautions I should take before using magnesium citrate?

Yes, ask a doctor before use if you have kidney disease, a magnesium-restricted diet, abdominal pain, nausea, or vomiting.

Can magnesium citrate affect other medications?

Yes, laxatives like magnesium citrate may affect how other drugs work; take this product 2 or more hours before or after other drugs.

What should I do in case of an overdose?

In case of overdose, get medical help or contact a Poison Control Center right away.

Is magnesium citrate safe to use during pregnancy or breastfeeding?

If pregnant or breastfeeding, you should ask 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).

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 following administration.

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 may be administered as a single daily dose or divided into multiple doses, with a recommended range of 6.5 to 10 fluid ounces, not exceeding a maximum of 10 fluid ounces within a 24-hour period.

For children aged 6 to under 12 years, the dosage is 3 to 7 fluid ounces, with a maximum limit of 7 fluid ounces in a 24-hour period.

For children aged 2 to under 6 years, the recommended dosage is 2 to 3 fluid ounces within a 24-hour period, with a maximum of 3 fluid ounces in that timeframe.

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

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 discontinue use and consult a healthcare professional.

Warnings and Precautions

Patients should consult a healthcare professional 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 two weeks or longer, or those who have used a laxative for more than one week, should seek medical advice before proceeding with treatment.

It is advisable for patients to discuss their current medications with a healthcare provider or pharmacist before using this product. This is particularly important for those taking other drugs, as laxatives may influence the efficacy of concurrent medications. To minimize potential interactions, it is recommended that this product be taken at least two hours before or after other medications.

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

In the event of an overdose, immediate medical assistance should be sought, or the patient should contact a Poison Control Center without delay.

Side Effects

Patients should be aware of the potential adverse reactions associated with the use of this product. Serious adverse reactions may occur, and patients are advised to stop use and consult a healthcare professional if they experience rectal bleeding or failure to have a bowel movement after use, as these symptoms could indicate a serious underlying condition.

Before using this product, patients should seek medical advice if they have a history of kidney disease, are on a magnesium-restricted diet, or are experiencing abdominal pain, nausea, or vomiting. Additionally, individuals who have noticed a sudden change in bowel habits that persists for more than two weeks or who have been using a laxative for longer than one week should also consult a healthcare provider.

It is important for patients to inform their doctor or pharmacist if they are taking any other medications, as the use of this product may affect the efficacy of other drugs. To minimize potential interactions, patients should take this product at least two hours before or after administering other medications.

Drug Interactions

Laxatives, particularly magnesium citrate, may influence the efficacy of concurrent medications. It is recommended that this product be administered at least 2 hours before or after the intake of other drugs to minimize potential interactions.

Currently, there is no additional information available regarding drug interactions or interactions with laboratory tests. Therefore, no specific dosage adjustments or monitoring recommendations can be provided beyond the aforementioned guidance for magnesium citrate.

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 available regarding the use of this medication in geriatric patients, including dosage adjustments, safety concerns, or special precautions. Healthcare providers should exercise caution when prescribing this medication to elderly patients, as individual responses may vary. It is advisable to monitor these patients closely for any adverse effects or changes in efficacy, given the lack of targeted data for this population.

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 safe use during pregnancy and lactation.

Lactation

Lactating mothers are advised to consult a healthcare professional prior to using this medication. There is no specific data available regarding the excretion of this medication in 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 this medication. Consequently, there are no 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 prescribing information.

Overdosage

In the event of an overdose, it is imperative to seek immediate medical assistance or contact a Poison Control Center without delay. Prompt intervention is crucial to mitigate potential adverse effects associated with the overdose.

Healthcare professionals should be aware that the specific symptoms of an overdose may vary depending on the substance involved. Therefore, a thorough assessment of the patient's condition is essential to determine the appropriate course of action.

Management of an overdose typically involves supportive care and symptomatic treatment. Continuous monitoring of the patient's vital signs and clinical status is recommended. In cases where the specific substance is known, targeted therapies may be employed as indicated.

It is essential for healthcare providers to remain vigilant and act swiftly in the management of overdose situations to ensure optimal patient outcomes.

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 text.

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 fail to have a bowel movement after use, as these symptoms may indicate a serious condition.

Before initiating treatment, healthcare providers should encourage patients to discuss their medical history, particularly if they have kidney disease, are on a magnesium-restricted diet, or are experiencing abdominal pain, nausea, or vomiting. Patients should also be informed to report any sudden changes in bowel habits that persist for two weeks or if they have been using a laxative for longer than one week.

Additionally, healthcare providers should recommend that patients consult with a doctor or pharmacist prior to using this product if they are currently taking any other medications. It is crucial to instruct patients to take this product at least two hours before or after other drugs, as laxatives may influence the efficacy of concurrent 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

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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.