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Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.


(mag-NEE-zee-um sal-ISS-uh-late)

COMMON BRAND NAME(S): Doan's, Momentum


This medication is an anti-inflammatory agent used to relieve pain, reduce swelling (inflammation) of arthritis and reduce fever.

How To Use

Take this medication by mouth with food or a full glass of milk or water (8oz. or 240 ml) as directed by your doctor. The dosage is based on your medical condition and response to therapy. If you are taking this medication for pain or fever and there is no improvement within 5 days, stop taking this drug and consult your doctor or pharmacist.

Side Effects

Heartburn, nausea, vomiting, and headache may occur. If any of these effects persist or worsen, notify your doctor. Tell your doctor immediately if any of these serious side effects occur: stomach pain, ringing in the ears, changes in your hearing. If you notice any of the following unlikely but very serious side effects, stop taking this drug and consult your doctor or pharmacist immediately: bloody or black stools, coffee-ground vomit, persistent stomach/abdominal pain. An allergic reaction to this drug is unlikely but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include: rash, itching, swelling, dizziness, trouble breathing. If you notice any other side effects not listed above, contact your doctor or pharmacist.


Tell your doctor your medical history, especially of: kidney or liver disease, stomach/intestinal ulcers, any allergies (especially to aspirin). This medication may cause stomach bleeding. Daily use of alcohol and this medication may increase your risk for stomach bleeding. Caution is advised when using this drug in the elderly because they may be more sensitive to the effects of the drug. Children and teenagers should not take this medication if they have chicken pox, influenza, or any undiagnosed illness without first consulting a doctor about Reye's syndrome, a rare but serious illness. This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. Magnesium salicylate is excreted into breast milk. Consult your doctor before breast-feeding.

Drug Interactions

Tell your doctor of all prescription and nonprescription drugs you may use, especially: probenecid, sulfinpyrazone, phenylbutazone, "blood thinners" (e.g., warfarin, heparin), aspirin, other NSAIDs (e.g., ibuprofen, naproxen), ACE inhibitors (e.g., captopril, enalapril), acetazolamide, oral diabetic medicine (e.g., chlorpropamide, glyburide, tolbutamide), corticosteroids (e.g., prednisone), methotrexate, anti-seizure medication (e.g., phenytoin, valproic acid), tetracycline antibiotics (e.g., doxycycline, minocycline, tetracycline). Check the labels on all your medicines because they may contain aspirin or aspirin-like NSAIDs (e.g., ibuprofen, naproxen). Ask your pharmacist about the safe use of these products. This drug may interfere with certain laboratory tests. Inform laboratory personnel that you are taking this drug. Do not start or stop any medicine without doctor or pharmacist approval.


If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include: severe stomach pain, severe vomiting, change in amount of urine, rapid and shallow breathing.


Do not share this medication with others. Laboratory and/or medical tests may be performed to monitor for side effects or response to treatment. If you have diabetes, this medication may affect your blood sugar and may cause false test results with some urine glucose tests (e.g., Clinistix, Clinitest). Check with your doctor before adjusting the dose of your diabetes medicine.

Missed Dose

If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.


Store at room temperature between 59 and 86 degrees F (15-30 degrees C) away from light and moisture.