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Succimer Side Effects

Medically reviewed by Last updated on Jun 6, 2022.

For the Consumer

Applies to succimer: oral capsule

Side effects requiring immediate medical attention

Along with its needed effects, succimer may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur while taking succimer:

Less common

  • Chills
  • fever

Side effects not requiring immediate medical attention

Some side effects of succimer may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Succimer may cause your urine, sweat, and feces to have an unpleasant odor.

For Healthcare Professionals

Applies to succimer: intravenous powder for injection, oral capsule


Common (1% to 10%): Rash (some requiring discontinuation)

Frequency not reported: Papular rash, herpetic rash, rash, mucocutaneous eruptions, pruritus[Ref]


Frequency not reported: Mild to moderate neutropenia, increased platelet count, intermittent eosinophilia[Ref]


Frequency not reported: Nausea, vomiting, diarrhea, hemorrhoidal symptoms, loose stools, abdominal cramps, stomach pains[Ref]


Frequency not reported: Appetite loss, chills, increased serum cholesterol[Ref]


Frequency not reported: Elevated SGPT, SGOT, alkaline phosphatase[Ref]


Frequency not reported: Decreased urination, voiding difficulty, proteinuria increased[Ref]


Frequency not reported: Arrhythmia[Ref]

Nervous system

Frequency not reported: Drowsiness, dizziness, sensorimotor neuropathy, sleepiness, paresthesia, metallic taste in mouth[Ref]


Frequency not reported: Back pain, rib pain, flank pain, kneecap pain, leg pains[Ref]


Frequency not reported: Fever, flu like symptoms, heavy head/tired, ears plugged[Ref]


Frequency not reported: Cloudy film in the eye, eyes watery[Ref]


Frequency not reported: Throat sore, rhinorrhea, nasal congestion, cough[Ref]


Frequency not reported: Head cold, moniliasis, otitis media


1. "Product Information. Chemet (succimer)." McNeil Pharmaceutical (2001):

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.