PREGNANCY AND BREASTFEEDING SAFETY: There is little risk of harm to the developing fetus.
Magnesium citrate can be safely and effectively used in nursing mothers because of minimal infant risk.
STORAGE: Store magnesium citrate between temperatures 8 C and 30 C (46 F and 86 F).
- 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.
DRUG CLASS AND MECHANISM: 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.
Medically reviewed by Eni Williams, PharmD, PhD
REFERENCE: NIH.gov. magnesium citrate.
Quick Guide19 Constipation Myths and Facts
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Need help identifying pills and medications?
Use the pill identifier tool on RxList.