Fluoxetine HCL Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

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

  • problems with ejaculation
  • widening of blood vessels
  • throat irritation
  • inflammation of the tissue lining the sinuses
  • dry mouth
  • indigestion
  • the inability to have an erection
  • drowsiness
  • dizziness
  • difficulty sleeping
  • flu-like symptoms
  • excessive sweating
  • muscle tremors
  • a skin rash
  • decreased appetite
  • headache
  • yawning
  • nausea
  • diarrhea
  • nervousness
  • generalized weakness
  • abnormal dreams
  • anxious feelings
  • INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

  • high blood pressure
  • If experienced, these tend to have a Less Severe expression i

  • confusion
  • abnormal sexual function
  • altered interest in having sexual intercourse
  • agitation
  • hyperactive behavior
  • a change in vision
  • ringing in the ears
  • abnormal heart rhythm
  • constipation
  • itching
  • hair loss
  • joint pain
  • a sleep disorder
  • fever
  • taste impairment
  • weight loss
  • excessive thirst
  • heart throbbing or pounding
  • cough
  • chest pain
  • gas
  • an increased need to urinate often
  • stomach cramps
  • a feeling of pins and needles on skin
  • fast heartbeat
  • RARE side effects

    If experienced, these tend to have a Severe expression i

  • low amount of sodium in the blood
  • acquired hemolytic anemia, an anemia due to destruction of red cells
  • a type of blood disorder with a decrease in all types of blood cells called pancytopenia
  • low blood counts due to bone marrow failure
  • an increased risk of bleeding
  • large purple or brown skin blotches
  • decreased blood platelets
  • manic behavior
  • a form of mania that has a lower severity of symptoms
  • suicidal thoughts
  • neuroleptic malignant syndrome, a reaction characterized by fever, muscle rigidity and confusion
  • serotonin syndrome, a type of disorder with high serotonin levels
  • sudden blindness and pain upon moving the eye
  • a clot in the lung
  • pulmonary hypertension
  • torsades de pointes, a type of abnormal heart rhythm
  • atrial fibrillation
  • prolonged QT interval on EKG
  • a stroke
  • thrombotic thrombocytopenic purpura, a type of blood disorder
  • bleeding
  • vocal cord swelling
  • a spasm of the larynx
  • pneumonia with high amount of eosinophil white blood cells
  • bronchospastic lung disease
  • stomach or intestinal ulcer
  • liver failure
  • damage to the liver and inflammation
  • a blockage of the bile duct that resulting in high bilirubin levels
  • bleeding of the stomach or intestines
  • kidney failure
  • erythema multiforme, a type of allergic skin reaction
  • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
  • erythema nodosum, a skin condition with red and painful nodules
  • skin rash with sloughing
  • seizures
  • swollen lymph nodes
  • trouble breathing
  • abnormal liver function tests
  • a significant type of allergic reaction called anaphylaxis
  • a type of allergic reaction called angioedema
  • a serum sickness reaction
  • secondary angle-closure glaucoma, a type of eye disorder
  • pancreatitis
  • If experienced, these tend to have a Less Severe expression i

  • low blood sugar
  • a high prolactin level
  • mood changes
  • depersonalization, a disconnection of one's own sense of reality or identity
  • grinding of the teeth
  • dilated pupils
  • low blood pressure
  • bruising under the skin
  • a type of stomach irritation called gastritis
  • inflammation of the lining of the stomach and intestines
  • enlarged breasts
  • breastmilk production not associated with childbirth or nursing
  • abnormal bleeding from the uterus
  • increased sensitivity of the skin to the sun
  • memory loss
  • loss of muscle coordination
  • a type of abnormal movement disorder called dyskinesia
  • small reddish-purplish pin-point sized spots on skin
  • difficult or painful urination
  • orgasm problems
  • poisoning caused by anticholinergic medication
  • bulging of the eyes
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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.