Revatio Side Effects

Generic Name: sildenafil

Note: This page contains side effects data for the generic drug sildenafil. It is possible that some of the dosage forms included below may not apply to the brand name Revatio.

It is possible that some side effects of Revatio may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

For the Consumer

Applies to sildenafil: oral powder for suspension, oral tablet

Other dosage forms:

As well as its needed effects, sildenafil (the active ingredient contained in Revatio) may cause unwanted side effects that require medical attention.

If any of the following side effects occur while taking sildenafil, check with your doctor immediately:

Less common
  • Bladder pain
  • burning feeling in the chest or stomach
  • burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  • cloudy or bloody urine
  • dizziness
  • increased frequency of urination
  • indigestion
  • pain on urination
  • stomach upset
  • tenderness in the stomach area
Rare
  • Abnormal vision
  • anxiety
  • behavior change similar to drunkenness
  • bleeding of the eye
  • blurred vision
  • bone pain
  • breast enlargement
  • chest pain
  • chills
  • cold sweats
  • confusion
  • convulsions (seizures)
  • cool and pale skin
  • deafness or hearing loss
  • decrease in amount of urine or the frequency of urination
  • decreased vision
  • difficulty in concentrating
  • dizziness or lightheadedness, especially when getting up from a lying or sitting position suddenly
  • double vision
  • drowsiness
  • dry eyes
  • dry mouth
  • dryness, redness, scaling, or peeling of the skin
  • excessive hunger
  • eye pain
  • fainting or faintness
  • fast, irregular, or pounding heartbeat
  • feeling of something in the eye
  • fever or chills
  • headache (severe or continuing)
  • increase in the size of the pupil
  • increased sweating
  • increased thirst
  • lower back or side pain
  • migraine headache
  • nausea (severe or continuing)
  • nervousness
  • nightmares
  • numbness of the hands
  • painful, swollen joints
  • prolonged, painful erection of penis
  • redness, burning, or swelling of the eyes
  • redness, itching, or tearing of the eyes
  • restless sleep
  • seeing shades of colors differently than before
  • sensitivity to light
  • shakiness
  • skin lesions with swelling
  • skin paleness
  • skin rash, hives, or itching
  • skin ulcers
  • slurred speech
  • sore throat
  • sudden weakness
  • swelling of the face, hands, feet, or lower legs
  • trouble breathing
  • twitching of the muscles
  • unusual feeling of burning or stinging of the skin
  • unusual tiredness or weakness
  • vision changes
  • vision loss, temporary
Incidence not known
  • Blindness

Some sildenafil side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:

More common
  • Aches or pains in the muscles
  • bloody nose
  • diarrhea
  • difficult or labored breathing
  • flushing
  • headache
  • pain or tenderness around the eyes and cheekbones
  • redness of the skin
  • sneezing
  • stomach discomfort following meals
  • stuffy or runny nose
  • trouble sleeping
  • unusually warm skin
Rare
  • Abdominal or stomach pain
  • abnormal dreams
  • anxiety
  • clumsiness or unsteadiness
  • cough
  • diarrhea or stomach cramps (severe or continuing)
  • difficulty in swallowing
  • ear pain
  • increased amount of saliva
  • increased skin sensitivity
  • lack of coordination
  • loss of bladder control
  • mental depression
  • nausea
  • numbness or tingling of the hands, legs, or feet
  • rectal bleeding
  • redness or irritation of the tongue
  • redness, soreness, swelling, or bleeding of the gums
  • ringing or buzzing in the ears
  • sensation of motion, usually whirling, either of one's self or of one's surroundings
  • sexual problems in men (continuing), including failure to experience a sexual orgasm
  • sleepiness
  • sores in the mouth and on the lips
  • tense muscles
  • trembling and shaking
  • vomiting
  • waking to urinate at night
  • worsening of asthma

For Healthcare Professionals

Applies to sildenafil: intravenous solution, oral suspension, oral tablet

General

The most common adverse reactions reported in clinical trials are headache, flushing, dyspepsia, abnormal vision, nasal congestion, back pain, myalgia, nausea, dizziness, and rash.[Ref]

Cardiovascular

Very common (10% or more): Flushing (10%)
Uncommon (0.1% to 1%): Heart rate increased, palpitations, tachycardia, hypertension, hypotension
Rare (less than 0.1%): Myocardial infarction, atrial fibrillation, sudden cardiac death, ventricular arrhythmia, unstable angina
Frequency not reported: Ventricular arrhythmia, sudden cardiac death, angina pectoris, AV block, tachycardia, palpitation, hypotension, postural hypotension, myocardial ischemia, cerebral thrombosis, cardiac arrest, heart failure, abnormal electrocardiogram, cardiomyopathy, shock
Postmarketing reports: Serious cardiovascular, cerebrovascular, and vascular events, including myocardial infarction; sudden cardiac death; ventricular arrhythmia; cerebrovascular hemorrhage; transient ischemic attack; hypertension; subarachnoid, intracerebral, and pulmonary hemorrhage have been reported in temporal association with the use of this drug.[Ref]

Gastrointestinal

Very common (10% or more): Dyspepsia (up to 17%), diarrhea
Common (1% to 10%): Nausea, vomiting, dry mouth, gastritis, gastroesophageal reflux disease, hemorrhoids, abdominal distension
Rare (less than 0.1%): Oral hypoesthesia
Frequency not reported: Glossitis, colitis, dysphagia, gastroenteritis, esophagitis, stomatitis, gingivitis[Ref]

Musculoskeletal

Very common (10% or more): Pain in extremity
Common (1% to 10%): Back pain, myalgia
Frequency not reported: Arthritis, arthrosis, myalgia, tendon rupture, tenosynovitis, bone pain, myasthenia, synovitis[Ref]

Nervous system

Very common (10% or more): Headache (up to 28%)
Common (1% to 10%): Dizziness, migraine, tremor, paresthesia, burning sensation
Uncommon (0.1% to 1%): Somnolence, hypoesthesia
Rare (less than 0.1%): Cerebrovascular accident, syncope
Frequency not reported: Transient ischemic attack, seizure, seizure recurrence, ataxia, hypertonia, neuralgia, neuropathy, paresthesia, somnolence, reflexes decreased
Postmarketing reports: Transient global amnesia[Ref]

Ocular

Very common (10% or more): Abnormal vision (up to 11%)
Common (1% to 10%): Visual color distortion, retinal hemorrhage, visual impairment, vision blurred, photophobia, chromatopsia, cyanopsia, eye irritation, ocular hyperemia
Uncommon (0.1% to 1%): Conjunctival disorders, eye disorders, eye pain, lacrimation disorders, visual acuity reduced, diplopia, abnormal sensation in eye, photopsia, visual brightness, conjunctivitis
Rare (less than 0.1%): Retinal hemorrhage, arteriosclerotic retinopathy, retinal disorder, glaucoma, visual field defect, myopia, asthenopia, vitreous floaters, iris disorder, mydriasis, halo vision, eye edema, eye swelling, eyelid edema, scleral discoloration
Frequency not reported: Non-arteritic anterior ischemic optic neuropathy (NAION), retinal vascular occlusion, visual field defect, cataract[Ref]

This drug has lesser affinity for isoenzyme PDE6, an enzyme found in the retina. This lower selectivity is thought to be the basis for abnormalities related to color vision observed with higher doses or plasma levels.

Nonarteritic anterior ischemic optic neuropathy developed in one eye within minutes to hours after ingestion of sildenafil. Four of the five patients had no vascular risk factors for ischemic optic neuropathy.

-Abnormal Vision: Mild to moderate and transient, predominantly color tinge to vision, but also increased sensitivity to light, or blurred vision.
-Visual color distortions: Chloropsia, chromatopsia, cyanopsia, erythropsia and xanthopsia
-Lacrimation disorders: Dry eye, lacrimal disorder and lacrimation increased[Ref]

Respiratory

Very common (10% or more): Pharyngitis (18%), rhinitis
Common (1% to 10%): Nasal congestion, epistaxis, cough
Uncommon (0.1% to 1%): Sinus congestion
Rare (less than 0.1%): Throat tightness, nasal edema, nasal dryness
Frequency not reported: Asthma, dyspnea, laryngitis, pharyngitis, sinusitis, bronchitis, sputum increased, cough increased[Ref]

Dermatologic

Common (1% to 10%): Rash, alopecia, erythema, night sweats
Frequency not reported: Steven-Johnson syndrome (SJS), toxic epidermal necrolysis(TEN), urticaria, herpes simplex, pruritus, sweating, skin ulcer, contact dermatitis, exfoliative dermatitis[Ref]

Hematologic

Common (1% to 10%): Anemia
Frequency not reported: Leukopenia
Postmarketing reports: In patients with pulmonary arterial hypertension (secondary to sickle cell disease) taking Revatio (R), vaso-occlusive crises requiring hospitalization were more commonly reported. The clinical relevance of this finding in male patients treated with sildenafil (the active ingredient contained in Revatio) for erectile dysfunction is unknown.[Ref]

Metabolic

Common (1% to 10%): Fluid retention
Frequency not reported: Thirst, edema, gout, unstable diabetes, hyperglycemia, hyperuricemia, hypoglycemic reaction, hypernatremia[Ref]

Other

Common (1% to 10%): Cellulitis, influenza, bronchitis, sinusitis, rhinitis, gastroenteritis, vertigo, pyrexia
Uncommon (0.1% to 1%): Tinnitus, chest pain, fatigue, gynecomastia
Rare (less than 0.1%): Deafness, irritability
Frequency not reported: Sudden hearing loss, edema, face edema, peripheral edema, pain, chills accidental fall, accidental injury[Ref]

Psychiatric

Common (1% to 10%): Insomnia, anxiety
Frequency not reported: Abnormal dreams, depression[Ref]

Genitourinary

Uncommon (0.1% to 1%): Penile hemorrhage, hematospermia
Frequency not reported: Priapism, prolonged erection, increased erection, cystitis, nocturia, urinary frequency, urinary incontinence, abnormal ejaculation, genital edema, anorgasmia[Ref]

Renal

Uncommon (0.1% to 1%): Hematuria[Ref]

Hypersensitivity

Rare (less than 0.1%): Hypersensitivity reactions, including rash and urticaria[Ref]

Hepatic

Frequency not reported: Liver function tests abnormal[Ref]

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