Succimer Side Effects

Medically reviewed by Drugs.com. Last updated on Mar 31, 2025.

Applies to succimer: oral capsule.

Precautions

It is important that your doctor check your progress at regular visits to make sure that this medicine is working properly and to prevent unwanted effects. Certain blood and urine tests must be done regularly to determine how long you need to take succimer.

If you think you are getting an infection or if you get a fever or chills, contact your doctor as soon as possible. You will need certain tests. Based on the results of the tests, your doctor may advise you to temporarily stop taking succimer to prevent serious side effects from occurring.

Common side effects of succimer

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:

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

Serious side effects of succimer

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:

For healthcare professionals

Applies to succimer: intravenous powder for injection, oral capsule.

Dermatologic adverse events

• Common (1% to 10%): Rash (some requiring discontinuation)
• Frequency not reported: Papular rash, herpetic rash, rash, mucocutaneous eruptions, pruritus^[Ref]

Hematologic

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

Gastrointestinal

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

Metabolic

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

Hepatic

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

Genitourinary

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

Cardiovascular

• Frequency not reported: Arrhythmia^[Ref]

Musculoskeletal

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

Nervous system

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

Other

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

Ocular

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

Respiratory

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

Immunologic

• Frequency not reported: Head cold, moniliasis, otitis media

See also:

Further information

Succimer side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer