Pegaspargase Side Effects

It is possible that some side effects of pegaspargase may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

For the Consumer

Applies to pegaspargase: solution

As well as its needed effects, pegaspargase may cause unwanted side effects that require medical attention.

If any of the following side effects occur while taking pegaspargase, check with your doctor or nurse as soon as possible:

More common
  • Abdominal or stomach pain
  • blurry vision
  • constipation
  • dry mouth and skin
  • faintness
  • fatigue
  • fruit-like breath odor
  • increased hunger or thirst
  • increased need to urinate
  • nausea
  • skin paleness
  • skin rash
  • sweating
  • troubled breathing
  • unexplained weight loss
  • unusual bleeding or bruising
  • vomiting
Less common
  • Bloating
  • chest pain
  • confusion
  • cough
  • darkened urine
  • difficulty in breathing or swallowing
  • dizziness
  • fast heartbeat
  • fever or chills
  • headache
  • hives or itching
  • indigestion
  • itching, especially of hands and feet
  • loss of appetite
  • numbness, tingling, or swelling in arms or legs
  • pains in stomach, side, or abdomen, possibly radiating to the back
  • puffiness or swelling of the eyelids or around the eyes, face, lips or tongue
  • reddening of the skin, especially around ears
  • shortness of breath
  • swelling of eyes, face, or inside of nose
  • tightness in chest
  • unusual tiredness or weakness (sudden and severe)
  • wheezing
  • yellow eyes or skin
  • Black, tarry stools
  • blood in urine
  • hoarseness
  • lower back or side pain
  • painful or difficult urination
  • pinpoint red spots on skin

Some pegaspargase side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:

More common
  • General feeling of discomfort or illness
Less common
  • Anxiety
  • behavior change similar to drunkenness
  • blurred vision
  • cold sweats
  • convulsions (seizures)
  • cool pale skin
  • difficulty in concentrating
  • drowsiness
  • lack of appetite
  • nervousness
  • nightmares
  • pain at place of injection
  • pain in joints or muscles
  • restless sleep
  • shakiness
  • slurred speech

For Healthcare Professionals

Applies to pegaspargase: injectable solution


Hepatic side effects have been reported frequently. These have included chemical hepatotoxicities. Increased SGPT has been reported frequently. Bilirubinemia and increased SGOT have been reported occasionally.


Hematologic side effects have been reported the most frequently. These have included coagulopathies. Thrombosis (4%), leukopenia, pancytopenia, thrombocytopenia, decreased fibrinogen, increased thromboplastin, hyperuricemia, hypoproteinemia, and hemolytic anemia have been reported occasionally.


Gastrointestinal side effects reported frequently have included nausea and vomiting. Clinical pancreatitis, anorexia, diarrhea, jaundice, and lip edema have also been reported occasionally.


Endocrine side effects have included hyperglycemia requiring insulin therapy (3%) and hypoglycemia.


Dermatologic side effects have included rash, erythema, and urticaria.


Respiratory side effects have included dyspnea, cough, upper respiratory infections, and bronchospasm.


Cardiovascular side effects have included edema. Hypotension, disseminated intravascular coagulation, peripheral edema, and tachycardia, chest pain, and endocarditis have been reported occasionally.


General side effects reported frequently have included fever and malaise. Chills, night sweats, pain (general), pain in the extremities, and abdominal pain have also been reported.


Local side effects have included injection site pain and injection site reaction.


Musculoskeletal side effects have included arthralgia and myalgia.

Nervous system

Nervous system side effects have included convulsions, headaches, and paresthesia.

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