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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 2020
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 2020
Label revision date
February 27, 2026
Manufacturer
Chain Drug Marketing Association
Registration number
M007
NDC root
83324-170
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 lemon. It is primarily used to relieve occasional constipation, helping to promote bowel movements within a timeframe of 30 minutes to 6 hours after consumption. This medication works by drawing water into the intestines, which helps to soften the stool and stimulate bowel activity.

Uses

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

You can feel confident using this medication, as there are no known teratogenic effects (which means it doesn't cause birth defects) or nonteratogenic effects associated with it.

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 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, please consult a doctor for guidance.

What to Avoid

It's important to be aware of certain situations where you should stop using this medication. If you experience rectal bleeding or if you do not have a bowel movement after using it, you should immediately consult your doctor. These symptoms could indicate a more serious health issue that needs attention.

Currently, there are no specific contraindications, risks of abuse or misuse, or concerns about dependence associated with this medication mentioned in the information provided. Always prioritize your health and safety by following these guidelines.

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 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 one week. Additionally, if you are taking any other medications, consult with your doctor or pharmacist, as laxatives can affect how other drugs work.

Warnings and Precautions

It's important to be aware of some key warnings when using this product. If you suspect an overdose, seek emergency medical help immediately or contact a Poison Control Center.

You should also stop using the product and call your doctor if you experience rectal bleeding or if you do not have a bowel movement after using it. These symptoms could indicate a serious health issue that needs attention. Always prioritize your health and safety by staying informed and proactive.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, it's always important to be aware of the potential risks associated with taking more than the recommended dose. If you suspect an overdose, look for signs such as unusual drowsiness, confusion, or difficulty breathing.

In the event of an overdose, you should seek immediate medical attention. Contact your healthcare provider or go to the nearest emergency room. If possible, bring the medication packaging with you to help medical professionals understand what you've taken. Always remember that it's better to be safe and get help if you have any concerns about your health.

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

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 recommended dosage is between 3 to 7 fluid ounces, with a maximum of 7 fluid ounces in a day.

If your child is between 2 and 6 years old, they should receive 2 to 3 fluid ounces, with a maximum of 3 fluid ounces in 24 hours. For children under 2 years of age, it's crucial to consult a doctor before administering the medication. Always ensure you adhere to these guidelines to keep your child safe and healthy.

Geriatric Use

If you are an older adult or a caregiver, it's important to be cautious when using this medication. Before starting, make sure to consult with your doctor if you have kidney disease, as this can affect how the medication works in your body. Additionally, if you are taking any other medications, it's wise to check with your doctor or pharmacist to avoid any potential interactions.

If you experience rectal bleeding or do not have a bowel movement after using this 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 seeking professional advice when needed.

Renal Impairment

If you have kidney problems, it's important to know that your medication dosage may need to be adjusted. This is because renal impairment can affect how your body processes certain drugs. Your healthcare provider will likely monitor your renal function tests regularly to ensure your kidneys are working properly.

If you have decreased creatinine clearance (a measure of kidney function), your doctor may recommend a reduced dose of your medication to avoid potential side effects. Always communicate openly with your healthcare team about your kidney health to ensure safe and effective treatment.

Hepatic Impairment

If you have liver problems, it's important to know that the information provided does not include specific guidelines for dosage adjustments, special monitoring, or precautions related to your condition. This means that there are no tailored recommendations for how the medication may affect you or how it should be managed in the context of liver impairment.

Always consult your healthcare provider for personalized advice and to ensure that any treatment plan is safe and effective for your specific health needs. They can help determine the best approach based on your liver function and overall health.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. Currently, there are no specific drug interactions or laboratory test interactions noted for this medication. However, every individual’s health situation is unique, and your healthcare provider can help ensure that your treatment plan is safe and effective for you. Always feel free to ask questions and share all the medications and supplements you are using to avoid any potential issues.

Storage and Handling

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

When handling the product, always do so with clean hands and in a sterile field (a clean area free from germs) to prevent contamination. Following these guidelines will help you use the product safely and effectively.

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 should I do if the tamper evident cap is missing or broken?

Do not use Magnesium Citrate if the tamper evident twist-off cap is missing, broken, or separated from the neck ring.

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.

Can children use Magnesium Citrate?

Yes, but the dosage varies: children 6 to under 12 years should take 3 to 7 fl oz, and children 2 to under 6 years should take 2 to 3 fl oz, with maximums of 7 fl oz and 3 fl oz in 24 hours, respectively.

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

Stop using Magnesium Citrate and ask a doctor, as these could be signs of a serious condition.

Are there any warnings for using Magnesium Citrate?

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

What should I do if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, ask a health professional before using Magnesium Citrate.

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.

Uses and Indications

This drug is indicated for the relief of occasional constipation (irregularity). It generally produces a bowel movement within 0.5 to 6 hours of administration.

There are no 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. The medication may be administered as a single daily dose or divided into multiple doses throughout the day.

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 recommended 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.

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 without delay. Prompt action is crucial to ensure patient safety and mitigate potential adverse effects.

Healthcare professionals should advise patients to discontinue use and consult a physician if they experience rectal bleeding or an inability to have a bowel movement following administration. These symptoms may indicate a serious underlying condition that requires further evaluation and intervention.

Monitoring for these adverse effects is essential to ensure the safe use of this product and to facilitate timely medical response if necessary.

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.

Prior to using this product, patients are advised to seek medical advice if they have 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 this product may interact with other drugs. To minimize the risk of such interactions, it is recommended that this product be taken at least two hours before or after the administration of other medications.

Drug Interactions

There are currently no documented drug interactions associated with this medication. Additionally, there is no information available regarding interactions with laboratory tests. As such, no specific recommendations for dosage adjustments or monitoring are warranted at this time.

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

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 inform their doctor or pharmacist about any other medications they are currently taking to avoid potential drug interactions.

In addition, elderly patients are advised to discontinue use and seek medical attention if they experience rectal bleeding or fail to have a bowel movement after administration. These symptoms may indicate a serious underlying condition that requires prompt evaluation. Careful monitoring and appropriate dose adjustments may be necessary to ensure the safety and efficacy of treatment in 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 health professional prior to using this medication. There is currently no available data regarding the excretion of this medication 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 important to monitor renal function tests in these patients to ensure safety and efficacy. Additionally, a reduced dose should be considered for patients with decreased creatinine clearance to mitigate the risk of adverse effects.

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 the absence of specific overdosage information, it is essential for healthcare professionals to remain vigilant regarding the potential for overdose with this medication. In cases where an overdose is suspected, immediate medical attention should be sought.

Healthcare providers are advised to monitor patients closely for any signs or symptoms that may indicate an overdose. These may include, but are not limited to, increased severity of known side effects, altered mental status, or any unusual physiological responses.

Management of an overdose should be guided by the clinical presentation of the patient. Supportive care is paramount, and symptomatic treatment should be initiated as necessary. It is recommended that healthcare professionals consult local poison control centers or relevant toxicology resources for specific guidance on the management of overdose cases.

In summary, while no specific overdosage information is provided, healthcare professionals should exercise caution, remain observant for potential overdose symptoms, and implement appropriate management strategies as needed.

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 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.

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 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 integrity and efficacy. Proper storage conditions must be adhered to, ensuring that the product is kept within the specified temperature range to prevent degradation.

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.