FELDENE Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • a high alanine transaminase level
  • a high aspartate transaminase level

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

  • indigestion
  • nausea
  • intense abdominal pain

INFREQUENT side effects

If experienced, these tend to have a Severe expression i

  • anemia
  • low levels of white blood cells
  • increased eosinophils in the blood
  • inflammation of the skin due to an allergy
  • abnormal liver function tests

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

  • constipation
  • drowsiness
  • dizziness
  • decreased appetite
  • headache
  • gas
  • burping
  • diarrhea

RARE side effects

If experienced, these tend to have a Severe expression i

  • an infection
  • low blood sugar
  • high levels of potassium in the blood
  • a type of blood disorder where the red blood cells burst called hemolytic anemia
  • a type of blood disorder with a decrease in all types of blood cells called pancytopenia
  • low blood counts due to bone marrow failure
  • large purple or brown skin blotches
  • decreased blood platelets
  • very low levels of granulocytes, a type of white blood cell
  • high blood pressure
  • a heart attack
  • angina, a type of chest pain
  • chronic heart failure
  • a stroke
  • inflammation of the blood vessels
  • bleeding
  • vocal cord swelling
  • asthma
  • bronchospasm
  • inflammation of the esophagus
  • a stomach ulcer
  • stomach or intestinal ulcer
  • inflammation of the liver called hepatitis
  • acute inflammation of the pancreas
  • blood in the bowel movement
  • bleeding of the stomach or intestines
  • nephrotic syndrome, a type of kidney disorder
  • a type of kidney inflammation called interstitial nephritis
  • glomerulonephritis, a condition that affects the kidneys
  • kidney failure
  • renal papillary necrosis
  • decreased kidney function
  • bloody urine
  • inflammation of the skin with blisters
  • erythema multiforme, a type of allergic skin reaction
  • a skin disorder with blistering and peeling skin called toxic epidermal necrolysis
  • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
  • skin rash with sloughing
  • abnormal peeling of skin
  • erythema or redness of skin or mucous membrane
  • hives
  • fainting
  • trouble breathing
  • chest tightness
  • bloody vomit
  • elevation of proteins in the urine
  • a significant type of allergic reaction called anaphylaxis
  • a type of allergic reaction called angioedema
  • a rupture in the wall of the stomach or intestine
  • a yellowing of the eyes or skin from buildup of bilirubin called jaundice

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

  • dry mouth
  • stomatitis, a condition with painful swelling and sores inside the mouth
  • increased sensitivity of the skin to the sun
  • hair loss
  • difficulty sleeping
  • flu-like symptoms
  • excessive sweating
  • small reddish-purplish pin-point sized spots on skin
  • heart throbbing or pounding
  • vomiting
  • nervousness
  • a feeling of pins and needles on skin
  • anxious feelings
  • fast heartbeat

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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.