ZONEGRAN Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • loss of muscle coordination

If experienced, these tend to have a Less Severe expression i

  • agitation
  • drowsiness
  • dizziness
  • decreased appetite
  • headache
  • nausea

INFREQUENT side effects

If experienced, these tend to have a Severe expression i

  • confusion
  • a form of schizophrenia called simple schizophrenia
  • depression
  • bruising under the skin
  • kidney stones
  • a skin rash

If experienced, these tend to have a Less Severe expression i

  • double vision
  • nystagmus, a condition with involuntary eye movements
  • a stuffy and runny nose
  • dry mouth
  • indigestion
  • constipation
  • difficulty concentrating
  • memory loss
  • mental status changes
  • difficulty sleeping
  • low energy
  • flu-like symptoms
  • taste impairment
  • weight loss
  • a type of speech disorder called dysarthria
  • vomiting
  • diarrhea
  • nervousness
  • a feeling of pins and needles on skin
  • intense abdominal pain
  • anxious feelings

RARE side effects

If experienced, these tend to have a Severe expression i

  • high amount of ammonium in the blood
  • low amount of sodium in the blood
  • excess body acid
  • dehydration
  • low blood counts due to bone marrow failure
  • anemia
  • decreased blood platelets
  • very low levels of granulocytes, a type of white blood cell
  • low levels of white blood cells
  • increased eosinophils in the blood
  • mental problems from taking the drug
  • suicidal thoughts
  • a type of brain function problem called encephalopathy
  • abnormal heart electrical signals
  • overgrowth of gums onto teeth
  • inflammation of the large intestine
  • inflammation of the lining of the stomach and intestines
  • blood coming from anus
  • liver tissue death
  • gallstones
  • inflammation of the gallbladder
  • decreased kidney function
  • a skin disorder with blistering and peeling skin called toxic epidermal necrolysis
  • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
  • decreased sweating
  • systemic lupus erythematosus, an autoimmune disease
  • a condition with muscle tissue breakdown called rhabdomyolysis
  • fever
  • a type of abnormal movement disorder called dyskinesia
  • apnea, a breathing interruption
  • trouble breathing
  • coughing up of blood
  • abnormal liver function tests
  • secondary angle-closure glaucoma, a type of eye disorder
  • a type of bumpy skin rash called a maculopapular rash
  • pancreatitis
  • a type of significant allergic skin reaction called DRESS syndrome
  • an accidental injury
  • painful and involuntary movement of the eyes called oculogyric crisis

If experienced, these tend to have a Less Severe expression i

  • low blood sugar
  • lazy eye
  • pink eye
  • ringing in the ears
  • hearing loss
  • thrombophlebitis, an inflamed vein due to a blood clot
  • throat irritation
  • stomatitis, a condition with painful swelling and sores inside the mouth
  • enlarged breasts
  • a problem with menstrual periods
  • itching
  • hirsutism, a condition of hair growth on parts of the body normally without hair
  • joint pain
  • neck stiffness
  • muscle weakness
  • muscle pain
  • leg cramps
  • fainting
  • a distorted sense of smell called parosmia
  • abnormal manner of walking
  • visible water retention
  • small reddish-purplish pin-point sized spots on skin
  • aphasia, a loss of the ability to speak and understand language
  • heart throbbing or pounding
  • swollen lymph nodes
  • cough
  • chest pain
  • difficulty swallowing
  • gas
  • an inability to completely empty the bladder
  • an increased need to urinate often
  • generalized weakness
  • a feeling of general discomfort called malaise
  • increased creatine kinase levels
  • hyperesthesia, an increased nerve sensitivity

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Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.