Generic Name: magnesium sulfate (mag-NEE-zee-um SUL-fate)
Brand Name: Generic only. No brands available.
Magnesium sulfate is used for:
Treating low magnesium levels and maintaining the proper amount of magnesium in the body when used as part of intravenous (IV) feedings (eg, total parenteral nutrition [TPN]). It is also used in pregnant women to control seizures due to certain complications of pregnancy (eg, severe toxemia) and to control high blood pressure, severe brain function problems (encephalopathy), and seizures in children who have sudden, severe inflammation of the kidneys (acute nephritis). It may also be used for other conditions as determined by your doctor.
Magnesium sulfate is a mineral. It works by replacing magnesium in patients who have low magnesium levels in the body due to illness or treatment with certain medicines. Magnesium sulfate may also be used to treat seizures by decreasing certain nerve impulses to muscles.
Do NOT use magnesium sulfate if:
- you are allergic to any ingredient in magnesium sulfate
- you have a severe irregular heartbeat (eg, heart block) or if you are pregnant and expect to deliver the baby within 2 hours
Contact your doctor or health care provider right away if any of these apply to you.
Before using magnesium sulfate:
Some medical conditions may interact with magnesium sulfate. 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 kidney problems or too much magnesium in the body
Some MEDICINES MAY INTERACT with magnesium sulfate. However, no specific interactions with magnesium sulfate are known at this time.
Ask your health care provider if magnesium sulfate 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 magnesium sulfate:
Use magnesium sulfate as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Magnesium sulfate is usually given as an injection at your doctor's office, hospital, or clinic. If you will be using magnesium sulfate at home, a health care provider will teach you how to use it. Be sure you understand how to use magnesium sulfate. Follow the procedures you are taught when you use a dose. Contact your health care provider if you have any questions.
- Do not use magnesium sulfate if it contains particles, is cloudy or discolored, or if the vial is cracked or damaged.
- Keep this product, as well as syringes and needles, out of the reach of children and away from pets. Do not reuse needles, syringes, or other materials. Ask your health care provider how to dispose of these materials after use. Follow all local rules for disposal.
- If you miss a dose of magnesium sulfate, contact your doctor immediately.
Ask your health care provider any questions you may have about how to use magnesium sulfate.
Important safety information:
- Tell your doctor or dentist that you take magnesium sulfate before you receive any medical or dental care, emergency care, or surgery.
- Do not take magnesium sulfate for longer than prescribed without checking with your doctor.
- PREGNANCY and BREAST-FEEDING: Magnesium sulfate may cause low calcium levels and bone problems (eg, weak bones, bone fractures) in the fetus if you take it for longer than 5 to 7 days while you are pregnant. If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using magnesium sulfate while you are pregnant. It is not known if magnesium sulfate is found in breast milk. If you are or will be breast-feeding while you use magnesium sulfate, check with your doctor. Discuss any possible risks to your baby.
Possible side effects of magnesium sulfate:
All medicines may cause side effects, but many people have no, or minor, side effects. When used in small doses, no COMMON side effects have been reported with this product. 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); dizziness; flushing; irregular heartbeat; muscle paralysis or weakness; severe drowsiness; sweating.
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 loss of muscle reflexes; severe dizziness and fainting; trouble breathing.Proper storage of magnesium sulfate:
Store magnesium sulfate at room temperature, between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep magnesium sulfate out of the reach of children and away from pets.
- If you have any questions about magnesium sulfate, please talk with your doctor, pharmacist, or other health care provider.
- Magnesium sulfate 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 magnesium sulfate 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 magnesium sulfate. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to magnesium sulfate. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your health care provider for complete information about the risks and benefits of using magnesium sulfate.
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.
More magnesium sulfate resources
- magnesium sulfate Concise Consumer Information (Cerner Multum)
- Magnesium Sulfate Professional Patient Advice (Wolters Kluwer)
- Magnesium Sulfate Monograph (AHFS DI)
- Magnesium Sulfate Prescribing Information (FDA)
- Magnesium Sulfate-Sodium Chloride injection Concise Consumer Information (Cerner Multum)