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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 27, 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 27, 2026
Manufacturer
The Kroger Co.
Registration number
M007
NDC root
30142-899
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 commonly used to relieve occasional constipation, which is when you experience irregular bowel movements. It works by drawing water into the intestines, helping to stimulate a bowel movement typically within 30 minutes to 6 hours after taking it.

This medication is available in a lemon flavor and comes in a 10 fluid ounce (296 mL) bottle, making it easy to take when you need relief from constipation.

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 use it as directed to achieve 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 (8 ounces) of liquid 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 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

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 indicate a serious health issue that requires medical attention.

Currently, there are no specific contraindications, risks of abuse or misuse, or concerns about dependence associated with this medication. However, always prioritize your health and safety by following these guidelines closely.

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 notice any concerning changes.

Warnings and Precautions

It's important to be aware of some key warnings when using this product. If you experience rectal bleeding or if you do not have a bowel movement after using it, you should stop taking the product and call your doctor immediately, as these could indicate a serious health issue.

In case of an overdose, seek emergency medical help or contact a Poison Control Center right away. Taking these precautions can help ensure your safety while using this medication.

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 open communication with your doctor regarding any medications you may be considering during this time.

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 giving this medication to your child, it's important to follow the recommended dosages based on their age. For children aged 12 years and older, the maximum amount is 10 fluid ounces in a 24-hour period. If your child is between 6 and 12 years old, they should not exceed 7 fluid ounces in a day. For those aged 2 to under 6 years, the limit is 3 fluid ounces, and for children under 2 years, you should consult a doctor before use.

Always keep this medication out of reach of children to prevent accidental ingestion. If you suspect an overdose, seek medical help or contact a Poison Control Center immediately. Your child's safety is the top priority, so please adhere to these guidelines closely.

Geriatric Use

If you are an older adult or a caregiver, it's important to be cautious when using this medication. Before starting, consult your doctor if you have kidney disease, as this can affect how your body processes the medication. Additionally, if you are on a magnesium-restricted diet (a diet that limits magnesium intake), it's essential to discuss this with your healthcare provider as well.

You should also be aware of certain warning signs. If you experience rectal bleeding or do not have a bowel movement after using the medication, stop using it immediately and contact your doctor. These symptoms could indicate a more serious health issue that needs attention. Always prioritize your health and safety by keeping your healthcare provider informed.

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 to ensure your kidneys are working properly. If your creatinine clearance (a measure of kidney function) falls below a certain level, a reduced dose may be necessary. Additionally, if you have severe renal impairment, special monitoring will be required to keep track of your health and medication effects. Always discuss any concerns with your healthcare provider to ensure your treatment is safe and effective.

Hepatic Impairment

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

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

Drug Interactions

It's important to 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 where the temperature stays between 46° and 86°F (8° and 30°C). This temperature range helps maintain the product's effectiveness and safety.

When handling the product, be sure to keep it in a clean environment to avoid contamination. Always follow any specific instructions provided for use and disposal to ensure safety and proper handling.

Additional Information

No further information is available.

FAQ

What is Magnesium Citrate?

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 is the recommended dosage for adults and children over 12?

Adults and children 12 years of age and over should 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?

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

What should I do if I experience rectal bleeding?

You should stop use and ask a doctor if you have rectal bleeding or failure to have a bowel movement after use, as these could be signs of a serious condition.

Can I take Magnesium Citrate if I am pregnant or breastfeeding?

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

How should I store Magnesium Citrate?

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

Are there any contraindications for using Magnesium Citrate?

No specific contraindications are mentioned in the provided information.

What should I do if I have kidney disease?

You should ask a doctor before use if you have kidney disease, as renal impairment may necessitate dosage adjustments.

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.

Limitations of Use: There are no known teratogenic or nonteratogenic effects 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 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 recommended dosage is 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, depending on the clinical judgment of the healthcare provider.

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

In the event of an overdose, it is imperative to seek emergency medical assistance immediately or contact a Poison Control Center. Prompt action is crucial to mitigate potential adverse effects associated with overdose.

Patients should discontinue use and promptly consult their healthcare provider if they experience rectal bleeding or fail to have a bowel movement after administration. These symptoms may indicate a serious underlying condition that requires immediate medical evaluation and intervention.

Healthcare professionals are advised to monitor patients closely for these signs and symptoms to ensure timely management and to prevent complications.

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

Laxatives, specifically 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.

No additional information regarding drug interactions or interactions with laboratory tests has been provided.

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 under 2 years of age, it is advised to consult a doctor before administration.

It is crucial to keep this product out of reach of children. In the event of an overdose, immediate medical assistance should be sought, or contact a Poison Control Center without delay.

Geriatric Use

Elderly patients should consult a healthcare provider prior to using this medication, particularly if they have a history of kidney disease. This precaution is essential due to the potential for altered pharmacokinetics and increased risk of adverse effects in this population.

Additionally, geriatric patients who are on a magnesium-restricted diet must seek medical advice before initiating treatment. This is crucial to avoid complications associated with magnesium intake, which may be particularly relevant in older adults who often have multiple comorbidities.

Patients aged 65 and older are advised to discontinue use and consult a healthcare professional if they experience rectal bleeding or fail to have a bowel movement after use. These symptoms may indicate a serious underlying condition that requires immediate medical attention.

Overall, careful monitoring and appropriate dose modifications may be necessary for 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. The potential risks and benefits must be carefully considered, as the effects on fetal outcomes and lactation are not fully established. It is essential for women of childbearing potential to discuss their individual circumstances with their healthcare provider 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 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

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 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 relevant toxicology resources for guidance on management strategies tailored to the specific circumstances of the overdosage event.

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 compound in these areas.

Postmarketing Experience

No postmarketing experience details are available in the provided 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.

Patients should be encouraged to consult with their healthcare provider before 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 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 in quality during storage.

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.