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Ansaid Side Effects

Generic name: flurbiprofen

Medically reviewed by Last updated on May 1, 2022.

Note: This document contains side effect information about flurbiprofen. Some of the dosage forms listed on this page may not apply to the brand name Ansaid.

For the Consumer

Applies to flurbiprofen: oral tablet


Oral route (Tablet)

NSAIDs cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use. Flurbiprofen is contraindicated in the setting of CABG surgery. NSAIDs cause an increased risk of serious gastrointestinal (GI) adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients and patients with a prior history of peptic ulcer disease and/or GI bleeding are at greater risk for serious GI events.

Side effects requiring immediate medical attention

Along with its needed effects, flurbiprofen (the active ingredient contained in Ansaid) 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 immediately if any of the following side effects occur while taking flurbiprofen:

Less common

  • Abdominal or stomach pain
  • bladder pain
  • bloody or black, tarry stools
  • bloody or cloudy urine
  • constipation
  • difficult, burning, or painful urination
  • frequent urge to urinate
  • lower back or side pain
  • rash
  • severe stomach pain
  • swelling
  • vomiting of blood or material that looks like coffee grounds


  • Back or leg pains
  • bleeding gums
  • blistering, peeling, or loosening of the skin
  • bloody diarrhea
  • bloody nose
  • blurred vision
  • burning feeling in the chest or stomach
  • burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  • chest pain
  • chills
  • clay-colored stools
  • cough
  • cracks in the skin
  • dark urine
  • decreased urine output
  • difficulty breathing
  • difficulty swallowing
  • dilated neck veins
  • dizziness
  • extreme fatigue
  • fast heartbeat
  • feeling faint, dizzy, or lightheaded
  • feeling of warmth or heat
  • fever with or without chills
  • flushing or redness of the skin, especially on the face and neck
  • general feeling of tiredness or weakness
  • greatly decreased frequency of urination
  • headache
  • high fever
  • hives or itching
  • hoarseness
  • increased blood pressure
  • increased sensitivity of the skin to sunlight
  • increased thirst
  • indigestion
  • irregular breathing
  • irregular heartbeat
  • joint pain, stiffness, or swelling
  • large, flat, blue, or purplish patches in the skin
  • large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  • light-colored stools
  • loss of appetite
  • loss of heat from the body
  • muscle pain
  • nausea
  • nervousness
  • noisy breathing
  • nosebleeds
  • pale skin
  • pinpoint red or purple spots on the skin
  • pounding in the ears
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • red skin lesions, often with a purple center
  • red, irritated eyes
  • red, swollen skin
  • redness or other discoloration of the skin
  • redness, swelling, or soreness of the tongue
  • scaly skin
  • severe or continuing stomach pain
  • severe sunburn
  • shakiness and unsteady walk
  • skin rash, encrusted, scaly and oozing
  • slow or fast heartbeat
  • sore throat
  • sores, ulcers, or white spots on the lips or in the mouth
  • stomach bloating or cramping
  • stomach upset
  • sweating
  • swelling of the face, fingers, feet, or lower legs
  • swelling or inflammation of the mouth
  • swollen or painful glands
  • tenderness in the stomach area
  • tightness in the chest
  • troubled breathing
  • unpleasant breath odor
  • unsteadiness, trembling, or other problems with muscle control or coordination
  • unusual bleeding or bruising
  • unusual tiredness or weakness
  • upper right abdominal or stomach pain
  • vomiting
  • weight gain
  • weight loss
  • yellow eyes or skin

Get emergency help immediately if any of the following symptoms of overdose occur while taking flurbiprofen:

Symptom of overdose

  • Change in consciousness
  • fast or slow, or shallow breathing
  • heartburn
  • loss of consciousness
  • pain or discomfort in the chest, upper stomach, or throat
  • pale or blue lips, fingernails, or skin
  • unusual drowsiness, dullness, or feeling of sluggishness

Side effects not requiring immediate medical attention

Some side effects of flurbiprofen 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:

Less common

  • Acid or sour stomach
  • belching
  • changes in vision
  • continuing ringing or buzzing or other unexplained noise in the ear
  • diarrhea
  • discouragement
  • excess air or gas in the stomach or intestines
  • fear
  • feeling of constant movement of self or surroundings
  • feeling sad or empty
  • full feeling
  • general feeling of discomfort or illness
  • hearing loss
  • irritability
  • lack of appetite
  • lack or loss of strength
  • lightheadedness
  • loss of interest or pleasure
  • loss of memory
  • passing gas
  • problems with memory
  • runny nose
  • sensation of spinning
  • sleepiness
  • sneezing
  • stomach discomfort
  • stuffy nose
  • tremor
  • trouble concentrating
  • trouble sleeping


  • Burning, dry, or itching eyes
  • confusion
  • discharge or excessive tearing
  • redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid
  • transient, mild, pleasant aromatic odor
  • twitching

For Healthcare Professionals

Applies to flurbiprofen: compounding powder, oral tablet


The most frequently reported side effects were gastrointestinal (GI) in nature and included abdominal pain, constipation, diarrhea, dyspepsia/heartburn, flatulence, GI bleeding, nausea, and vomiting.[Ref]


Common (1% to 10%): Abdominal pain, constipation, diarrhea, dyspepsia/heartburn, flatulence, GI bleeding, nausea, vomiting

Frequency not reported: Bloody diarrhea, esophageal disease, gastric/peptic ulcer disease, gastritis, hematemesis, stomatitis, glossitis, colitis, dry mouth, exacerbation of inflammatory bowel disease, exacerbation of Crohn's disease, exacerbation of ulcerative colitis, small intestine inflammation with blood and protein loss, GI perforation, duodenal ulcer, pancreatitis, ulcerative stomatitis[Ref]

Nervous system

Common (1% to 10%): Headache, reflexes increased, tremor, central nervous system (CNS) stimulation, CNS inhibition, amnesia, somnolence

Frequency not reported: Ataxia, cerebrovascular ischemia, paresthesia, convulsion, cerebrovascular accident, hypertonia, subarachnoid hemorrhage, dizziness/vertigo, parosmia, taste changed, retrobulbar neuritis, optic neuritis[Ref]


Common (1% to 10%): Edema, asthenia, malaise, tinnitus

Frequency not reported: Chills, fever, periodontal abscess, meningitis, aseptic meningitis, herpes simples, herpes zoster, ear disease, transient hearing loss, fatigue[Ref]


Common (1% to 10%): Rhinitis

Frequency not reported: Asthma, epistaxis, bronchitis, dyspnea, hyperventilation, laryngitis, pulmonary embolism, pulmonary infarct, bronchospasm[Ref]


Common (1% to 10%): Elevated liver enzymes

Frequency not reported: Cholestatic jaundice, noncholestatic jaundice, hepatitis, cholecystitis, liver failure, abnormal liver function[Ref]


Frequency not reported: Interstitial nephritis, renal failure, nephrotic syndrome[Ref]


Common (1% to 10%): Rash

Frequency not reported: Ecchymosis, purpura, angioedema, eczema, exfoliative dermatitis, photosensitivity, pruritus, toxic epidermal necrolysis, urticaria, alopecia, dry skin, nail disorder, sweating, bullous dermatoses, Stevens-Johnson syndrome, erythema multiforme[Ref]


Common (1% to 10%): Vision changes

Frequency not reported: Conjunctivitis, corneal opacity, glaucoma, retinal hemorrhage, visual disturbance[Ref]


Common (1% to 10%): Nervousness, anxiety, insomnia, depression

Frequency not reported: Confusion, emotional lability, hallucinations[Ref]


Frequency not reported: Hypersensitivity reaction[Ref]


Frequency not reported: Aplastic anemia, agranulocytosis, pancytopenia, hemoglobin decreased, hematocrit decreased, eosinophilia, hemolytic anemia, iron deficiency anemia, leukopenia, thrombocytopenia, lymphadenopathy, anemia, bleeding time increased, neutropenia[Ref]


Frequency not reported: Congestive heart failure, hypertension, vascular diseases, vasodilation, angina pectoris, arrhythmias, myocardial infarction, cardiac failure[Ref]


Common (1% to 10%): Urinary tract infection

Frequency not reported: Hematuria, menstrual disturbances, vaginal hemorrhage, uterine hemorrhage, vulvovaginitis, prostate disease[Ref]


Frequency not reported: Anaphylactic reaction[Ref]


Common (1% to 10%): Body weight changes

Frequency not reported: Appetite changes, hyperuricemia, hyperkalemia[Ref]


Frequency not reported: Twitching, myasthenia[Ref]

Frequently asked questions


1. "Product Information. Ansaid (flurbiprofen)." Pharmacia and Upjohn (2001):

2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

3. Cerner Multum, Inc. "Australian Product Information." O 0

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.