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Sildenafil side effects

Aggregated from 4 medical sources. Not medical advice. Always consult a healthcare professional.

109 side effects

Side effectFrequencyMedlinePlusMayo ClinicDrugs.comNHS
Nauseacommonnauseanausea (severe or continuing)nauseaFeeling sick (nausea)
Headachevery commonheadacheheadache (severe or continuing)headacheHeadaches
Heartburnvery commonheartburnburning feeling in the chest or stomachdyspepsiaIndigestion
Diarrhea—diarrheastomach upsetdiarrhea—
Flushingvery commonflushing—flushingFlushing including hot flushes
Nosebleeds—nosebleeds—Epistaxis—
Numbnessuncommonnumbness, burning, or tinglingburning, crawling, itching, numbness, prickling, pins and needles, or tingling feelings——
Muscle painvery commonpain in muscles, back, arms, or legsbone painmyalgia—
Vision changesvery commonchanges in color visionAbnormal visionAbnormal vision—
Sensitivity to light—sensitivity to lightsensitivity to lightPhotophobia—
Nasal congestion—nasal congestion—Nasal congestionStuffy nose
Vision loss—sudden severe loss of vision—sudden loss of visionSudden decrease or loss of vision
Blurred vision—blurred visionblurred visionblurred vision—
Hearing loss—sudden decrease or loss of hearingdeafness or hearing losssudden decrease in hearing—
Tinnitusuncommonringing in ears—Tinnitus—
Dizziness—dizziness or lightheadednessdizziness or lightheadedness, especially when getting up suddenly from a lying or sitting positiondizzinessFeeling dizzy
Fainting—faintingfainting or faintnessfaintness—
Chest painuncommonchest painchest painchest painChest pain
Shortness of breath—worsening shortness of breath—Dyspnea—
Prolonged erection—erection that is painful or lasts longer than 4 hoursprolonged, painful erection of penisprolonged or painful erectionProlonged or painful erection
Rashcommonrash—Rashrash
Itching—itching———
Hives—hives———
Breathing difficulties—difficulty breathing or swallowing——Breathing difficulties
Swelling—swelling of the eyes, face, throat, tongue, or lips——Swollen lips, mouth, throat or tongue
Heart attackrareheart attack—myocardial infarction—
Strokerarestroke—cerebrovascular accident—
Irregular heartbeat—irregular heartbeatfast, irregular, or pounding heartbeat——
Bleeding in the brain or lungs—bleeding in the brain or lungs———
High blood pressure—high blood pressure———
Sudden death—sudden death———
Bladder pain——Bladder pain——
Indigestion——indigestion——
Stomach upset——stomach upset——
Abnormal visionvery common—Abnormal visionAbnormal vision—
Anxietyrare—anxiety——
Behavior change——behavior change similar to drunkenness——
Bleeding of the eye——bleeding of the eye——
Bone pain——bone pain——
Breast enlargement——breast enlargementGynecomastia—
Chillsrare—chills——
Confusion——confusionconfusionconfusion, drowsiness or dizziness
Cool and pale skin——cool and pale skin——
Deafness——deafness or hearing loss——
Decreased vision——decreased vision——
Difficulty concentrating——difficulty in concentrating——
Double vision——double visionDiplopia—
Drowsinessuncommon—drowsinessSomnolenceconfusion, drowsiness or dizziness
Dry eyesuncommon—dry eyesDry eye—
Dry mouth——dry mouth——
Excessive hunger——excessive hunger——
Eye pain——eye pain——
Feververy common—fever or chillsPyrexia—
Increased sweating——increased sweating——
Increased thirst——increased thirst——
Lower back painvery common—lower back or side painback pain—
Migraine——migraine headache——
Nervousness——nervousness——
Nightmares——nightmares——
Numbness of the hands——numbness of the hands——
Painful joints——painful, swollen joints——
Redness of the eyes——redness, burning, or swelling of the eyes——
Restless sleep——restless sleep——
Seizures——seizures—Seizure or fit
Shakiness——shakiness——
Skin lesions——skin lesions with swelling——
Skin paleness——skin paleness——
Somnolenceuncommon——Somnolence—
Unusual tiredness———unusual tiredness or weakness—
Vomiting———vomiting—
Myalgiavery common——myalgia—
Back painvery common——back pain—
Cerebrovascular accidentrare——cerebrovascular accident—
Myocardial infarctionrare——myocardial infarction—
Blindness———blindness—
Chromatopsia———Chromatopsia—
Cyanopsia———Cyanopsia—
Diplopia———Diplopia—
Eye irritation———Eye irritation—
Photophobia———Photophobia—
Retinal hemorrhage———Retinal hemorrhage—
Visual acuity reduced———Visual acuity reduced—
Visual color distortion———Visual color distortion—
Dry eyeuncommon——Dry eye—
Lacrimal disorderuncommon——Lacrimal disorder—
Photopsiauncommon——Photopsia—
Arteriosclerotic retinopathyrare——Arteriosclerotic retinopathy—
Retinal disorderrare——Retinal disorder—
Glaucomarare——Glaucoma—
Upper respiratory tract infectionvery common——Upper respiratory tract infection—
Bronchitisvery common——Bronchitis—
Pharyngitisvery common——Pharyngitis—
Cough———Cough—
Epistaxis———Epistaxis—
Dyspnea———Dyspnea—
Erythemacommon——Erythema—
Alopeciacommon——Alopecia—
Anemia———Anemia—
Increased weightcommon——Increased weight—
Fluid retentioncommon——Fluid retention—
Pyrexiavery common——Pyrexia—
Influenzavery common——Influenza—
Cellulitis———Cellulitis—
Gynecomastia———Gynecomastia—
Night sweats———Night sweats—
Serious allergic reactionrare———serious allergic reaction
Swollen lips————Swollen lips, mouth, throat or tongue
Tight throat————tight throat
Skin discoloration————skin discoloration

3 additional sourcesdidn't return structured side-effect data: PubMed, GoodRx, Mskcc.org.

Demographic risk groups

GroupRiskSources
womenpregnancy and breastfeedingMedlinePlus
patients with heart diseasestrain on the heartMedlinePlus
men with heart problemshigher risk of heart attack, stroke, irregular heartbeat, bleeding in the brain or lungs, high blood pressure, and sudden deathMedlinePlus
childrenserious allergic reactionMedlinePlus, NHS
patients with heart problemsserious side effectsDrugs.com
patients with PAH secondary to sickle cell diseaseVaso-occlusive crisisDrugs.com

Medside aggregates publicly available side-effect information for reference only. It is not medical advice. Always consult a healthcare professional before making decisions about medication.

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