Before taking magnesium sulfate, tell your doctor if you have any other medical conditions, allergies, or if you take other medicines or other herbal/health supplements. Magnesium sulfate may not be recommended in some situations.
Do not use magnesium sulfate as a laxative if you have stomach (abdominal) pain, nausea, or vomiting, unless directed by a doctor. If you notice a sudden change in bowel habits that persists over a period of 2 weeks, consult your healthcare provider before using a laxative. Magnesium sulfate should not be used for longer than one week, unless otherwise directed by your healthcare provider. Rectal bleeding or failure to have a bowel movement after use of a laxative may indicate a more serious condition; stop using magnesium sulfate and contact your healthcare provider.
Magnesium is a naturally occurring mineral. Magnesium is important for many systems in the body especially the muscles and nerves. Magnesium sulfate also increases water in the intestines, which may induce defecation.
Magnesium hydroxide is used as a laxative to relieve occasional constipation (irregularity).
Magnesium sulfate may also be used for purposes other than those listed in this medication guide.
Do not take magnesium sulfate without first talking to your doctor if you have kidney disease.
Do not use magnesium sulfate as a laxative if you have stomach (abdominal) pain, nausea, or vomiting, unless directed by a doctor. If you notice a sudden change in bowel habits that persists over a period of 2 weeks, consult your healthcare provider before using a laxative. Magnesium sulfate should not be used for longer than one week, unless otherwise directed by your healthcare provider. Rectal bleeding or failure to have a bowel movement after use of a laxative may indicate a more serious condition; stop using magnesium sulfate and contact your healthcare provider.
Before taking magnesium sulfate, tell your doctor if you have any other medical conditions, allergies, or if you take other medicines or other herbal/health supplements. Magnesium sulfate may not be recommended in some situations.
It is not known whether magnesium sulfate will be harmful to an unborn baby. Do not take magnesium sulfate without first talking to your doctor if you are pregnant or planning a pregnancy.
It is not known whether magnesium sulfate will be harmful to an nursing baby. Do not take magnesium sulfate without first talking to your doctor if you are breast-feeding a baby.
Take magnesium sulfate exactly as directed by your doctor or as directed on the package. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.
Magnesium sulfate may be used orally or as a rectal enema. Follow your doctor's instructions or the directions on the package.
Do not use magnesium sulfate as a laxative if you have stomach (abdominal) pain, nausea, or vomiting, unless directed by a doctor. If you notice a sudden change in bowel habits that persists over a period of 2 weeks, consult your healthcare provider before using a laxative. Magnesium sulfate should not be used for longer than one week, unless otherwise directed by your healthcare provider. Rectal bleeding or failure to have a bowel movement after use of a laxative may indicate a more serious condition; stop using magnesium sulfate and contact your healthcare provider.
Do not take more magnesium sulfate than is directed.
Store magnesium sulfate at room temperature away from moisture and heat.
Take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the dose you missed and take only the next regularly scheduled dose. Do not take a double dose of this medication.
Stop taking magnesium sulfate and seek emergency medical attention if you experience an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives).
Other, less serious side effects may be more likely to occur. Continue to take magnesium sulfate and talk to your doctor if you experience diarrhea or upset stomach.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.
Before taking magnesium sulfate, talk to your doctor if you are taking
a tetracycline antibiotic such as tetracycline (Sumycin, Achromycin V, and others), demeclocycline (Declomycin), doxycycline (Vibramycin, Monodox, Doxy, and others), minocycline (Minocin, Dynacin, and others), or oxytetracycline (Terramycin, and others);
a fluoroquinolone antibiotic such as ciprofloxacin (Cipro), ofloxacin (Floxin), enoxacin (Penetrex), norfloxacin (Noroxin), sparfloxacin (Zagam), levofloxacin (Levaquin), lomefloxacin (Maxaquin), grepafloxacin (Raxar), and others;
penicillamine (Cuprimine);
digoxin (Lanoxin, Lanoxicaps); or
nitrofurantoin (Macrodantin, Furadantin, others).
You not be able to take magnesium sulfate, or you may require a dosage adjustment or special monitoring during treatment if you are taking any of the medicines listed above.
Drugs other than those listed here can also interact with magnesium sulfate. Talk to your doctor and pharmacist before taking any over-the-counter or prescription medicines, including vitamins, minerals, and herbal products.
Your pharmacist has additional information about magnesium sulfate written for health professionals that you may read.
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