Prozac Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • A Skin Rash
  • Abnormal Dreams
  • Anxious Feelings
  • Decreased Appetite
  • Diarrhea
  • Difficulty Sleeping
  • Dizziness
  • Drowsiness
  • Dry Mouth
  • Excessive Sweating
  • Flu-Like Symptoms
  • Generalized Weakness
  • Head Pain
  • Indigestion
  • Inflammation Of The Tissue Lining The Sinuses
  • Muscle Tremors
  • Nausea
  • Nervousness
  • Problems With Ejaculation
  • The Inability To Have An Erection
  • Throat Irritation
  • Widening Of Blood Vessels
  • Yawning

INFREQUENT side effects


If experienced, these tend to have a Less Severe expression

  • A Change In Vision
  • Abnormal Heart Rhythm
  • Abnormal Sexual Function
  • Agitation
  • Altered Interest In Having Sexual Intercourse
  • An Increased Need To Urinate Often
  • Chest Pain
  • Chills
  • Confusion
  • Constipation
  • Cough
  • Excessive Thirst
  • Fast Heartbeat
  • Fever
  • Gas
  • Hair Loss
  • Heart Throbbing Or Pounding
  • Hives
  • Hyperactive Behavior
  • Itching
  • Joint Pain
  • Ringing In The Ears
  • Stomach Cramps
  • Taste Impairment
  • Weight Loss

RARE side effects


If experienced, these tend to have a Severe expression

  • A Blockage Of The Bile Duct That Resulting In High Bilirubin Levels
  • A Clot In The Lung
  • A Form Of Mania That Has A Lower Severity Of Symptoms
  • A Serum Sickness Reaction
  • A Significant Type Of Allergic Reaction Called Anaphylaxis
  • A Skin Disorder With Blistering And Peeling Skin Called Stevens-Johnson Syndrome
  • A Spasm Of The Larynx
  • A Stroke
  • A Type Of Allergic Reaction Called Angioedema
  • A Type Of Blood Disorder With A Decrease In All Types Of Blood Cells Called Pancytopenia
  • Abnormal Liver Function Tests
  • Acquired Hemolytic Anemia, An Anemia Due To Destruction Of Red Cells
  • An Increased Risk Of Bleeding
  • Atrial Fibrillation
  • Bleeding Of The Stomach Or Intestines
  • Bronchospasm
  • Damage To The Liver And Inflammation
  • Decreased Blood Platelets
  • Erythema Multiforme, A Type Of Allergic Skin Reaction
  • Erythema Nodosum, A Skin Condition With Red And Painful Nodules
  • Kidney Failure
  • Large Purple Or Brown Skin Blotches
  • Liver Failure
  • Low Amount Of Sodium In The Blood
  • Low Blood Counts Due To Bone Marrow Failure
  • Manic Behavior
  • Neuroleptic Malignant Syndrome, A Reaction Characterized By Fever, Muscle Rigidity And Confusion
  • Pancreatitis
  • Pneumonia With High Amount Of Eosinophil White Blood Cells
  • Prolonged QT Interval On EKG
  • Pulmonary Hypertension
  • Secondary Angle-Closure Glaucoma, A Type Of Eye Disorder
  • Seizures
  • Serotonin Syndrome, A Type Of Disorder With High Serotonin Levels
  • Skin Rash With Sloughing
  • Stomach Or Intestinal Ulcer
  • Sudden Blindness And Pain Upon Moving The Eye
  • Suicidal Thoughts
  • Swollen Lymph Nodes
  • Thrombotic Thrombocytopenic Purpura, A Type Of Blood Disorder
  • Torsades De Pointes, A Type Of Abnormal Heart Rhythm
  • Trouble Breathing
  • Vocal Cord Swelling

If experienced, these tend to have a Less Severe expression

  • A High Prolactin Level
  • A Type Of Abnormal Movement Disorder Called Dyskinesia
  • Abnormal Bleeding From The Uterus
  • Bleeding Not Related To Menstrual Period
  • Breastmilk Production Not Associated With Childbirth Or Nursing
  • Bruising Under The Skin
  • Clouding Of The Lens Of The Eye Called Cataracts
  • Depersonalization, A Disconnection Of One's Own Sense Of Reality Or Identity
  • Difficult Or Painful Urination
  • Dilated Pupils
  • Enlarged Breasts
  • Grinding Of The Teeth
  • Increased Sensitivity Of The Skin To The Sun
  • Inflammation Of The Skin Due To An Allergy
  • Loss Of Muscle Coordination
  • Low Blood Pressure
  • Low Blood Sugar
  • Memory Loss
  • Mood Changes
  • Small Reddish-Purplish Pin-Point Sized Spots On Skin
  • Vomiting

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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.