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DeWitt's Pain Reliever Side Effects

Generic Name: magnesium salicylate

Note: This page contains information about the side effects of magnesium salicylate. Some of the dosage forms included on this document may not apply to the brand name DeWitt's Pain Reliever.

Applies to magnesium salicylate: oral tablet

Get emergency medical help if you have any of these signs of an allergic reaction while taking magnesium salicylate (the active ingredient contained in DeWitt's Pain Reliever) hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication and call your doctor at once if you have a serious side effect such as:

  • chest pain, severe dizziness, shortness of breath, slurred speech, problems with vision or balance;

  • sudden numbness or weakness, especially on one side of the body;

  • feeling like you might pass out;

  • black, bloody, or tarry stools;

  • coughing up blood or vomit that looks like coffee grounds;

  • blood in your urine, urinating more or less than usual;

  • hearing problems, ringing in your ears;

  • swelling, rapid weight gain;

  • easy bruising or bleeding, unusual weakness, fever, chills, sore throat, flu symptoms;

  • fast or pounding heartbeats;

  • severe stomach pain, ongoing nausea or vomiting; or

  • dark urine, jaundice (yellowing of the skin or eyes).

Less serious side effects of magnesium salicylate may include:

  • heartburn; or

  • upset stomach.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Not all side effects for DeWitt's Pain Reliever may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

More about DeWitt's Pain Reliever (magnesium salicylate)

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