Common Viagra Side Effects


The most commonly reported Viagra side effects (click to view or check a box to report):

Headache (456)
Erection Increased (343)
Flushing (282)
Optic Ischaemic Neuropathy (270)
Erectile Dysfunction (262)
Vision Blurred (236)
Dizziness (180)
Hypertension (175)
Prostate Cancer (151)
Visual Acuity Reduced (147)
Blood Cholesterol Increased (145)
Nasal Congestion (142)
Death (136)
Incorrect Dose Administered (136)
Cyanopsia (127)
Penis Disorder (123)
Myocardial Infarction (123)
Cerebrovascular Accident (107)
Dyspnoea (104)
Feeling Abnormal (96)

➢ More



If you or someone in your family has experienced a serious side effect to a health product, you are encouraged to report the experience to your health care professional (e.g. physician, pharmacist). You could also complete a copy of the side effect reporting form or report your side effect to FDA.

Viagra Side Effects Reported to FDA



Viagra Side Effect Report#9997707
Headache
This is a report of a 66-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: erectile dysfunction, who was treated with Viagra (dosage: 100 Mg, As Needed, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Headache after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Viagra treatment in male patients, resulting in Headache side effect.
Viagra Side Effect Report#9997685
Nasopharyngitis
This report suggests a potential Viagra Nasopharyngitis side effect(s) that can have serious consequences. A 75-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: sexual dysfunction,hypertension and used Viagra (dosage: 50 Mg, As Needed) starting NS. After starting Viagra the patient began experiencing various side effects, including: NasopharyngitisAdditional drugs used concurrently:
  • Lisinopril (40 Mg, Daily)
Although Viagra demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Nasopharyngitis, may still occur.
Viagra Side Effect Report#9997684
Headache, Vomiting
This Headache problem was reported by a consumer or non-health professional from US. A 38-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: erectile dysfunction. On 2009 this consumer started treatment with Viagra (dosage: 1 Tablet, 1 Time Only). The following drugs were being taken at the same time: NA. When using Viagra, the patient experienced the following unwanted symptoms/side effects: Headache, VomitingAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Headache, may become evident only after a product is in use by the general population.
Viagra Side Effect Report#9996513
Liver Injury, Hepatic Cyst, Hepatic Neoplasm, Ultrasound Liver Abnormal
This Liver Injury side effect was reported by a consumer or non-health professional from CN. A 43-year-old male patient (weight:NA) experienced the following symptoms/conditions: erectile dysfunction.The patient was prescribed Viagra (drug dosage: More Than 30 Tablets Within The Past More Than Two Years, 1/3 Tablet Per Time By Splitting), which was initiated on NS. Concurrently used drugs: NA..After starting to take Viagra the consumer reported adverse symptoms, such as: Liver Injury, Hepatic Cyst, Hepatic Neoplasm, Ultrasound Liver AbnormalThese side effects may potentially be related to Viagra.
Viagra Side Effect Report#9994543
Hernia, Erythema, Nasal Congestion
This is a report of a 74-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: erectile dysfunction,amyotrophic lateral sclerosis, who was treated with Viagra (dosage: 100 Mg, As Needed, start time: NS), combined with:
  • Oxycodone (80 Mg, Unk)
and developed a serious reaction and side effect(s): Hernia, Erythema, Nasal Congestion after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Viagra treatment in male patients, resulting in Hernia side effect.
Viagra Side Effect Report#9990530
Malaise, Heart Rate Increased
This report suggests a potential Viagra Malaise side effect(s) that can have serious consequences. A 57-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: NA and used Viagra (dosage: Unk) starting NS. After starting Viagra the patient began experiencing various side effects, including: Malaise, Heart Rate IncreasedAdditional drugs used concurrently: NA. Although Viagra demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Malaise, may still occur.
Viagra Side Effect Report#9978226
Flushing, Diarrhoea, Photophobia
This Flushing problem was reported by a consumer or non-health professional from US. A 59-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Viagra (dosage: Unk). The following drugs were being taken at the same time: NA. When using Viagra, the patient experienced the following unwanted symptoms/side effects: Flushing, Diarrhoea, PhotophobiaAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Flushing, may become evident only after a product is in use by the general population.
Viagra Side Effect Report#9975905
Off Label Use, Pre-existing Condition Improved, Therapeutic Response Unexpected
This Off Label Use side effect was reported by a consumer or non-health professional from US. A 39-year-old male patient (weight:NA) experienced the following symptoms/conditions: incontinence.The patient was prescribed Viagra (drug dosage: Unk), which was initiated on
Feb 26, 2014. Concurrently used drugs: NA..After starting to take Viagra the consumer reported adverse symptoms, such as: Off Label Use, Pre-existing Condition Improved, Therapeutic Response UnexpectedThese side effects may potentially be related to Viagra.
Viagra Side Effect Report#9975900
Product Taste Abnormal
This is a report of a 57-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: erectile dysfunction, who was treated with Viagra (dosage: 100 Mg, As Needed, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Product Taste Abnormal after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Viagra treatment in male patients, resulting in Product Taste Abnormal side effect.
Viagra Side Effect Report#9975885
Malaise
This report suggests a potential Viagra Malaise side effect(s) that can have serious consequences. A 59-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: NA and used Viagra (dosage: Unk) starting NS. After starting Viagra the patient began experiencing various side effects, including: MalaiseAdditional drugs used concurrently: NA. Although Viagra demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Malaise, may still occur.
Viagra Side Effect Report#9972803
Product Quality Issue
This Product Quality Issue problem was reported by a consumer or non-health professional from US. A 40-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: erectile dysfunction. On 2013 this consumer started treatment with Viagra (dosage: 100 Mg, Unk). The following drugs were being taken at the same time: NA. When using Viagra, the patient experienced the following unwanted symptoms/side effects: Product Quality IssueAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Product Quality Issue, may become evident only after a product is in use by the general population.
Viagra Side Effect Report#9972795
Headache
This Headache side effect was reported by a consumer or non-health professional from US. A 65-year-old male patient (weight:NA) experienced the following symptoms/conditions: erectile dysfunction.The patient was prescribed Viagra (drug dosage: 25 Mg, As Needed), which was initiated on 201308. Concurrently used drugs: NA..After starting to take Viagra the consumer reported adverse symptoms, such as: HeadacheThese side effects may potentially be related to Viagra.
Viagra Side Effect Report#9953992
Erection Increased
This is a report of a 19-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: excessive masturbation, who was treated with Viagra (dosage: Unk, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Erection Increased after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Viagra treatment in male patients, resulting in Erection Increased side effect.
Viagra Side Effect Report#9949412
Accident
This report suggests a potential Viagra Accident side effect(s) that can have serious consequences. A 73-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: erectile dysfunction,hypertension,diabetes mellitus,anxiety,blood testosterone decreased and used Viagra (dosage: 100 Mg, As Needed) starting NS. After starting Viagra the patient began experiencing various side effects, including: AccidentAdditional drugs used concurrently:
  • Lisinopril (10 Mg, 1x/day)
  • Metformin (500 Mg, 2x/day)
  • Klonopin (1 Mg, 1x/day)
  • Depo-testosterone (Unk)
Although Viagra demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Accident, may still occur.
Viagra Side Effect Report#9943267
Cardiac Disorder
This Cardiac Disorder problem was reported by a consumer or non-health professional from US. A 58-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: erectile dysfunction,hypertension. On 2005 this consumer started treatment with Viagra (dosage: 100 Mg, As Needed). The following drugs were being taken at the same time:
  • Bisoprolol Fumarate/hydrochlorothiazide ([bisoprolol 5mg/ Hydrochlorothiazide 6.25mg], 1x/day)
When using Viagra, the patient experienced the following unwanted symptoms/side effects: Cardiac DisorderAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Cardiac Disorder, may become evident only after a product is in use by the general population.
Viagra Side Effect Report#9940991
Product Contamination
This Product Contamination side effect was reported by a consumer or non-health professional from US. A 73-year-old male patient (weight:NA) experienced the following symptoms/conditions: erectile dysfunction.The patient was prescribed Viagra (drug dosage: 100 Mg, As Needed), which was initiated on NS. Concurrently used drugs: NA..After starting to take Viagra the consumer reported adverse symptoms, such as: Product ContaminationThese side effects may potentially be related to Viagra.
Viagra Side Effect Report#9940781
Nasal Congestion
This is a report of a 67-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: NA, who was treated with Viagra (dosage: Unk, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Nasal Congestion after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Viagra treatment in male patients, resulting in Nasal Congestion side effect.
Viagra Side Effect Report#9935424
Product Quality Issue, Flushing, Sinus Congestion
This report suggests a potential Viagra Product Quality Issue side effect(s) that can have serious consequences. A 61-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: erectile dysfunction and used Viagra (dosage: Unk) starting 2013. After starting Viagra the patient began experiencing various side effects, including: Product Quality Issue, Flushing, Sinus CongestionAdditional drugs used concurrently: NA. Although Viagra demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Product Quality Issue, may still occur.
Viagra Side Effect Report#9935377
Headache
This Headache problem was reported by a consumer or non-health professional from US. A 61-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: erectile dysfunction. On 201204 this consumer started treatment with Viagra (dosage: Unk). The following drugs were being taken at the same time: NA. When using Viagra, the patient experienced the following unwanted symptoms/side effects: HeadacheAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Headache, may become evident only after a product is in use by the general population.
Viagra Side Effect Report#9928001
Incorrect Product Storage
This Incorrect Product Storage side effect was reported by a consumer or non-health professional from US. A 61-year-old male patient (weight:NA) experienced the following symptoms/conditions: sexual dysfunction.The patient was prescribed Viagra (drug dosage: 100 Mg, As Needed), which was initiated on NS. Concurrently used drugs: NA..After starting to take Viagra the consumer reported adverse symptoms, such as: Incorrect Product StorageThese side effects may potentially be related to Viagra.
Viagra Side Effect Report#9926185
Arrhythmia, Atrial Fibrillation
This is a report of a 70-year-old male patient (weight: NA) from GR, suffering from the following health symptoms/conditions: NA, who was treated with Viagra (dosage: Unk, start time: NS), combined with:
  • Xanax (Unk)
  • Angoron (Unk)
  • Rythmonorm (Unk)
  • Aprovel (Unk)
  • Sintrom (Unk)
  • Lexotanil (Unk)
  • Moduretic (Unk)
and developed a serious reaction and side effect(s): Arrhythmia, Atrial Fibrillation after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Viagra treatment in male patients, resulting in Arrhythmia side effect.
Viagra Side Effect Report#9925356
Erection Increased, Penile Haemorrhage
This report suggests a potential Viagra Erection Increased side effect(s) that can have serious consequences. A 24-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: erectile dysfunction and used Viagra (dosage: 2 Df, As Needed) starting 201402. After starting Viagra the patient began experiencing various side effects, including: Erection Increased, Penile HaemorrhageAdditional drugs used concurrently: NA. Although Viagra demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Erection Increased, may still occur.
Viagra Side Effect Report#9924657
Heart Rate Increased, Dizziness
This Heart Rate Increased problem was reported by a consumer or non-health professional from US. A 26-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Viagra (dosage: 50 Mg, Unk). The following drugs were being taken at the same time: NA. When using Viagra, the patient experienced the following unwanted symptoms/side effects: Heart Rate Increased, DizzinessAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Heart Rate Increased, may become evident only after a product is in use by the general population.
Viagra Side Effect Report#9921774
Hypoacusis
This Hypoacusis side effect was reported by a physician from KR. A 65-year-old male patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Viagra (drug dosage: 100 Mg, Unk), which was initiated on NS. Concurrently used drugs:
  • Palpal (25 Mg, Unk)
.After starting to take Viagra the consumer reported adverse symptoms, such as: HypoacusisThese side effects may potentially be related to Viagra. The patient was hospitalized.
Viagra Side Effect Report#9920258
Pre-existing Condition Improved, Therapeutic Response Unexpected
This is a report of a 68-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: erectile dysfunction,hypertension, who was treated with Viagra (dosage: 50 Mg, As Needed, start time: 2012), combined with:
  • Metoprolol (50 Mg, 2x/day)
and developed a serious reaction and side effect(s): Pre-existing Condition Improved, Therapeutic Response Unexpected after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Viagra treatment in male patients, resulting in Pre-existing Condition Improved side effect.


1 of 216 


The appearance of Viagra on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has found a causal relationship between the drug and the listed risk.

What are common Viagra Side Effects for Women?

Women Side Effects Reports
Death 17
Off Label Use 16
Condition Aggravated 6
Dyspnoea 6
Headache 6
Abortion Spontaneous 5
Convulsion 5
Respiratory Failure 5
Therapeutic Response Unexpected 5
Visual Acuity Reduced 5

What are common Viagra Side Effects for Men?

Men Side Effects Reports
Headache 447
Erection Increased 338
Flushing 279
Optic Ischaemic Neuropathy 266
Erectile Dysfunction 260
Vision Blurred 227
Dizziness 172
Hypertension 170
Prostate Cancer 148
Blood Cholesterol Increased 145

Track Your Side Effects

Note Your Observations

It is really important to keep track of your health symptoms, right from the time you start a new medicine. You can do it any way you prefer: in a notebook, in a computer file or using our online tool. You should also note down any other medicines you are taking at the same time, because there could be an interaction between these medicines.

Why Your Notes are Important

Your notes could be helpful in several ways:

  • You can use them to remind you of details that may alert your health care professional(s) to a problem
  • You will have a record to refer to in the future, in case you are ever prescribed the same medicine again

  • Log Form

    You can use the following log form to write down important information, like the date and time you experienced a side effect and your symptoms, how strong the symptoms were, and any other medicines you were using.

    Medicine Name and Dosage:
    Side Effects Scale Date & Time Other Medicine(s) or Treatment(s)
    Scale: 1 = very mild to 10 = very bad

    Side effects reports are analyzed to discover potential health product safety signals. Some important reactions may take an extremely long time to develop or occur infrequently. Continued monitoring of adverse reactions is thus essential to maintain a comprehensive safety and effectiveness profile of health products.

    You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

    Viagra reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
    FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.

    Discuss Viagra Side Effects

    Did You Have a Viagra Side Effect?

    Yes, Severe
    Yes, Moderate
    Yes, Minor
    No

    How Effective is Viagra for You?

    Exceeded Expectations
    Effective
    Somewhat Effective
    Not Effective

    Viagra Safety Alerts, Active Ingredients, Usage Information

    NDC 0069-4200
    Type HUMAN PRESCRIPTION DRUG
    Proprietary Name Viagra
    Name sildenafil citrate
    Dosage Form TABLET, FILM COATED
    Route ORAL
    On market since 19980327
    Labeler Pfizer Laboratories Div Pfizer Inc
    Active Ingredient(s) SILDENAFIL CITRATE
    Strength(s) 25
    Unit(s) mg/1
    Pharma Class Phosphodiesterase 5 Inhibitor [EPC],Phosphodiesterase 5 Inhibitors [MoA]

    Viagra Dosage, Warnings, Usage.

    Side Effects reported to FDA: 5394

    Viagra safety alerts: 2007 2005

    Reported deaths: 402

    Reported hospitalizations: 838

    Viagra (sildenafil)

    Audience: Urologists, other healthcare professionals, consumers
    [Posted 10/18/2007] FDA informed healthcare professionals of reports of sudden decreases or loss of hearing following the use of PDE5 inhibitors Viagra, Levitra, Cialis for the treatment of erectile dysfunction, and Revatio for the treatment of pulmonary arterial hypertension. In some cases, the sudden hearing loss was accompanied by tinnitus and dizziness. Medical follow-up on these reports was often limited which makes it difficult to determine if the loss of hearing was related to the use of one of the drugs, an underlying medical condition or other risk factors for hearing loss, a combination of these factors or other factors. The PRECAUTIONS and ADVERSE REACTIONS sections of the approved product labeling for Viagra, Levitra, and Cialis were revised. FDA is working with the manufacturer to revise the labeling for Revatio.

    [October 18, 2007 - Viagra Information page - FDA]
    [October 18, 2007 - Viagra label - Pfizer]
    [October 18, 2007 - Cialis Information page - FDA]
    [October 18, 2007 - Cialis label - FDA]
    [October 18, 2007 - Levitra Information page - FDA]
    [October 18, 2007 - Levitra label - FDA]

    Latest Viagra clinical trials

    privacy policy