Mag-Ox

Generic Name: magnesium oxide (mag-NEE-zee-um OX-ide)
Brand Name: Examples include Mag-Ox and Uro-Mag

Mag-Ox is used for:

Treating acid indigestion, heartburn, sour stomach, and low magnesium levels in the body. It also may be used for other conditions as determined by your doctor.

Mag-Ox is an essential mineral. It works by adding magnesium to your body if your magnesium levels are low. As an antacid, it works by neutralizing stomach acid.

Do NOT use Mag-Ox if:

  • you are allergic to any ingredient in Mag-Ox

Contact your doctor or health care provider right away if any of these apply to you.

Slideshow: 2014 Update - First Time Brand-to-Generic Switches

Before using Mag-Ox:

Some medical conditions may interact with Mag-Ox. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

  • if you are pregnant, planning to become pregnant, or are breast-feeding
  • if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
  • if you have allergies to medicines, foods, or other substances
  • if you have appendicitis, diarrhea, a blockage of your intestines, heart problems, or kidney problems

Some MEDICINES MAY INTERACT with Mag-Ox. Tell your health care provider if you are taking any other medicines, especially any of the following:

  • Anticoagulants (eg, warfarin) because the risk of their side effects may be increased by Mag-Ox
  • Penicillamine because its effectiveness may be decreased by Mag-Ox

This may not be a complete list of all interactions that may occur. Ask your health care provider if Mag-Ox may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

How to use Mag-Ox:

Use Mag-Ox as directed by your doctor. Check the label on the medicine for exact dosing instructions.

  • Take Mag-Ox by mouth with food.
  • If you also take a bisphosphonate (eg, alendronic acid), digoxin, a quinolone (eg, ciprofloxacin), or a tetracycline (eg, doxycycline), do not take them within 2 to 4 hours before or after taking Mag-Ox. Check with your doctor if you have questions.
  • If you miss a dose of Mag-Ox and are using it regularly, take it as soon as possible. If it is almost time for the next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use Mag-Ox.

Important safety information:

  • Do not take more than 2 tablets in a 24-hour period or use for more than 2 weeks without checking with your health care provider.
  • If you are taking Mag-Ox for relief of acid indigestion, heartburn, or sour stomach and your symptoms do not improve within 2 weeks, if they become worse, or if you experience black, tarry stools or vomit that looks like coffee grounds, check with your doctor.
  • Lab tests, including magnesium levels, may be performed while you use Mag-Ox. These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.
  • Mag-Ox should not be used in CHILDREN younger than 6 years old; safety and effectiveness in these children have not been confirmed.
  • PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Mag-Ox while you are pregnant. It is not known if Mag-Ox is found in breast milk. If you are or will be breast-feeding while you use Mag-Ox, check with your doctor. Discuss any possible risks to your baby.

Possible side effects of Mag-Ox:

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Diarrhea.

Seek medical attention right away if any of these SEVERE side effects occur:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black, tarry stools; nausea; slow reflexes; vomit that looks like coffee grounds.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

If OVERDOSE is suspected:

Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately. Symptoms may include confusion; dizziness; flushing; loss of consciousness; muscle weakness; severe drowsiness; slow heartbeat.

Proper storage of Mag-Ox:

Store Mag-Ox at room temperature, between 68 and 77 degrees F (20 and 25 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep Mag-Ox out of the reach of children and away from pets.

General information:

  • If you have any questions about Mag-Ox, please talk with your doctor, pharmacist, or other health care provider.
  • Mag-Ox is to be used only by the patient for whom it is prescribed. Do not share it with other people.
  • If your symptoms do not improve or if they become worse, check with your doctor.
  • Check with your pharmacist about how to dispose of unused medicine.

This information should not be used to decide whether or not to take Mag-Ox or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about Mag-Ox. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to Mag-Ox. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using Mag-Ox.

Issue Date: November 5, 2014
Database Edition 14.4.1.002
Copyright © 2014 Wolters Kluwer Health, Inc.

Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using this medicine.

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