Viagra Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Less Severe expression

  • Backache
  • Dizzy
  • Feel Like Throwing Up
  • Head Pain
  • Indigestion
  • Nosebleed
  • Stuffy Nose
  • Temporary Redness Of Face And Neck
  • Visible Water Retention

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Acute Infection Of The Nose, Throat Or Sinus
  • Problems With Eyesight

If experienced, these tend to have a Less Severe expression

  • Chronic Trouble Sleeping
  • Diarrhea
  • Fever
  • Flu-Like Symptoms
  • Inflammation Of The Nose
  • Rash
  • Redness Of Skin
  • Sinus Irritation And Congestion
  • Trouble Breathing
  • Urinary Tract Infection

RARE side effects


If experienced, these tend to have a Severe expression

  • Abnormal Increase In Muscle Tone
  • Abnormal Liver Function Tests
  • Abnormally Low Blood Pressure
  • Anemia
  • Angina
  • Atrioventricular Heart Block
  • Bleeding From The Lungs
  • Bleeding In Eye
  • Blood Clot In The Brain
  • Blood Coming From Anus
  • Blood Pressure Drop Upon Standing
  • Cataracts
  • Chest Pain
  • Chronic Heart Failure
  • Complete Stoppage Of The Heart
  • Continued Painful Erection
  • Decreased White Blood Cells
  • Depression
  • Diabetes That Is Not Under Control
  • Disease Of Inadequate Blood Flow To The Heart Muscle
  • Disease Of The Muscle Of The Heart With Enlargement
  • Disorder Of Nerve
  • Eye Disease Caused By Blood Flow Problems
  • Fast Heartbeat
  • Feeling Faint
  • Fluid Retention In The Legs, Feet, Arms Or Hands
  • Hearing Loss
  • Heart Attack
  • Heart Throbbing Or Pounding
  • Heart Ventricle Rhythm Problem
  • Hemorrhage In The Brain
  • High Amount Of Sodium In The Blood
  • High Amount Of Uric Acid In The Blood
  • High Blood Pressure
  • High Blood Sugar
  • Increased Pressure In The Eye
  • Inflammation Of The Bladder
  • Inflammation Of The Esophagus
  • Low Blood Sugar
  • Pain
  • Poor Vision
  • Problems With Bladder Control
  • Retinal Edema
  • Retinal Hemorrhage
  • Rupture Of A Tendon
  • Seizures
  • Separation Of The Vitreous From The Retina In The Eye
  • Shock
  • Skin Rash With Sloughing
  • Transient Ischemic Attack
  • Uncoordinated

If experienced, these tend to have a Less Severe expression

  • Abnormal Dreams
  • Accumulation Of Fluid Or Edema In The Male Genitals
  • Arthritis
  • Asthma
  • Bloody Urine
  • Bone Pain
  • Bronchitis
  • Burning Stomach
  • Chills
  • Contact Dermatitis
  • Cough
  • Difficulty Swallowing
  • Dilated Pupil
  • Drowsiness
  • Dry Eye
  • Dry Mouth
  • Earache
  • Enlarged Breasts
  • Episode Of Short-Term Memory Loss
  • Excessive Sweating
  • Excessive Thirst
  • Feeling Anxious
  • Feeling Weak
  • Frequent Urination
  • Gout
  • Hives
  • Increase In The Amount Of Phlegm
  • Inflammation Of The Covering Of The Tendon
  • Inflammation Of The Gums
  • Inflammation Of The Large Intestine
  • Inflammation Of The Lining Of A Joint
  • Inflammation Of The Lining Of The Stomach And Intestines
  • Inflammation Of The Voice Box
  • Intense Abdominal Pain
  • Involuntary Quivering
  • Itching
  • Migraine Headache
  • Muscle Pain
  • Muscle Weakness
  • Nerve Pain
  • Numbness
  • Numbness And Tingling
  • Orgasm Problems
  • Pain In The Eye
  • Painful, Red Or Swollen Mouth
  • Painful, Red Or Swollen Tongue
  • Pink Eye
  • Problem With Ejaculation
  • Puffy Face From Water Retention
  • Ringing In The Ears
  • Sensation Of Spinning Or Whirling
  • Sensitive To Light
  • Sexual Problems
  • Skin Ulcer
  • Sun-Sensitive Skin
  • Swelling Of The Testicles
  • Throat Irritation
  • Throwing Up
  • Urination During The Night
  • Weak Reflexes

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, expect 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.