What is Magnesium Oxide: Uses, Warnings & Interactions

Updated Jan. 13, 2021  •  Published Dec. 30, 2020

Magnesium Oxide overview

BRAND NAMES:

  • Phillips, Sundown Naturals Magnesium, Uro-Mag, Uro-Mag

Generic Names:

  • Magnesium Oxide

Uses:

  • Treats acid indigestion and upset stomach. Also used as a mineral supplement to add to the magnesium oxide in your daily diet.

Therapeutic Classes:

  • Antacid, Magnesium Containing, Laxative, Hyperosmotic, Magnesium Supplement

How it’s taken:

  • By mouth

What are common Magnesium Oxide doses?

  • Bottle 100 Tablets

  • Bottle 110 Tablets

  • Bottle 90 Capsules

  • Bottle 120 Tablets

  • Bottle 250 Tablets

  • Bottle 1GM of

  • Bottle 500GM of

  • Bottle 2500GM of

  • Tablet 400 (240 Mg)MG

  • Tablet 400 (241.3 Mg)MG

  • Bottle 120 Tablets

  • Tablet 400 (241.3 Mg)MG

Common Magnesium Oxide prescriptions

  • Magnesium Oxide -Mg Supplement
    100 tablets bottle

  • Magnesium Oxide -Mg Supplement
    120 tablets bottle

  • Magnesium Oxide -Mg Supplement
    60 tablets bottle

  • Magnesium Oxide -Mg Supplement
    90 capsules bottle

How to take Magnesium Oxide

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • Follow the instructions on the medicine label if you are using this medicine without a prescription.

  • If you are using this medicine as an antacid, do not use the medicine for longer than 2 weeks in a row.

  • Drink at least six to eight (8 ounce) cups of liquid each day, unless your doctor tells you otherwise.

  • Drink at least six to eight (8 ounce) cups of liquid each day, unless your doctor tells you otherwise.

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • Follow the instructions on the medicine label if you are using this medicine without a prescription.

  • If you are using this medicine as an antacid, do not use the medicine for longer than 2 weeks in a row.

What to do if you miss a dose of Magnesium Oxide

  • Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

Magnesium Oxide contraindications

  • Unless your doctor tells you otherwise, there is no reason for you to not use this medicine.

Magnesium Oxide warnings

  • Tell your doctor if your acid indigestion does not improve after using the medicine for 1 to 2 weeks.

  • Make sure your doctor knows if you are pregnant or breast feeding, or if you have kidney disease.

Magnesium Oxide interactions

  • There are many other medicines that may not work properly if you use them together with magnesium oxide. Make sure your doctor knows about all other medicines you are using.

  • Tell your doctor if your acid indigestion does not improve after using the medicine for 1 to 2 weeks.

Magnesium Oxide side effects

Serious Side Effects

  • Diarrhea.

Less Serious Side Effects

  • Diarrhea.