What is magnesium citrate, and what is it used for?

Magnesium citrate is supplied as an oral tablet or liquid saline laxative. Magnesium citrate retains water in the intestines by osmosis. Increasing water in the bowel aids motility, usually producing a bowel movement within one-half to six hours.

Magnesium citrate is used for:

  • Bowel evacuation (bowel preparation or cleansing)
  • Constipation
  • Bowel irregularity
  • A nutritional supplement and for treating acid indigestion

What are the side effects of magnesium citrate?

The most common side effects of magnesium citrate are:

What is the dosage of magnesium citrate for constipation?

  • Adults and children 12 years of age and older: Use 195 to 300 ml of magnesium citrate with a full glass of water. It may be taken as a single dose or divided doses or may also be used with 2 to 4 tablets at bedtime.
  • Children 6 to under 12 years of age: Use 90 to 210 ml of magnesium citrate with a full glass of water; it may be taken as a single dose or divided doses.
  • Children 2 to under 6 years of age: Use 60 to 90 ml of magnesium citrate; it may be taken as a single dose or divided doses with a maximum dose of 90 ml in 24 hours.

What drugs interact with magnesium citrate?

Magnesium citrate should not be combined with antibiotics like:

Magnesium citrate decreases absorption of these antibiotics and leads to decreased therapeutic effect.

QUESTION

You are constipated if you don't have a bowel movement every day. See Answer

Summary

Magnesium citrate (Citrate of Magnesia, Citroma) is an OTC medicine that retains water in the intestines to relieve constipation. A magnesium citrate supplement is used for treating heartburn. Side effects include abdominal cramps, diarrhea, bloating, and an electrolyte imbalance. Dosage depends whether it is an adult or child being treated. Magnesium citrate interacts with some antibiotics. Magnesium citrate (Citrate of Magnesia, Citroma) is an over-the-counter medicine that helps relieve and treat constipation. Magnesium citrate supplements also are used for treating heartburn.

Side effects of magnesium citrate include nausea, vomiting, abdominal cramps, diarrhea, bloating, and an electrolyte imbalance.

Dosage of magnesium citrate depends on a person’s age. Magnesium citrate should not be combined with some antibiotics, for example, doxycycline (Vibramycin), tetracycline, minocycline (Minocin), ciprofloxacin (Cipro), and levofloxacin (Levaquin).

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Medically Reviewed on 12/2/2021
References
NIH.gov. magnesium citrate.