Get Informed: Viagra
Active Ingredient(s)
Sildenafil
What does it do?
This product is approved for the treatment of erectile dysfunction. It enhances the effect of nitric oxide on smooth muscle in the penis to promote the inflow of blood. It is available in the form of tablets.
- Last Text Update:
- 2010-Mar-15 3:40 PM
- Last Data Update:
- 2010-Mar-15 9:01 PM
Other Names
- Viagra
- Revatio
- Sildenafil
How Safe Is It?
- Your Risk Rating
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- Average Risk Rating
-
- Pregnancy Category:
- B
- Black Box Warning:
- No
Facts & Figures
- Date Approved
- 27 Mar 1998
- Est US Patients*
- 3,446,000
- Generic Available
- No
- OTC Available
- No
User Age Distribution*
< 21
21-39
40-59
60+
Age (Years)
* Estimated number of US people currently taking Viagra or its active ingredient based on population adjusted patient numbers registered with iGuard.org.
Recent alerts for Viagra
There have been no iGuard.org alerts regarding Viagra during the past year.
Viagra Safety Report
Learn more about iGuard's risk ratings
- Please login or register (it's free) so iGuard can check how Viagra interacts with other drugs and diseases in your profile.
What is Viagra used for?
iGuard is currently tracking more than 22,800 patients that use Viagra (or similar drugs with the same active ingredient(s)). Use the table below to learn why iGuard users take this product; click on any underlined condition to get information on other medications used for treatment.
| Disease / Condition | % | Average Severity |
|---|---|---|
| Erectile Dysfunction | 91% | 
|
| Pulmonary Hypertension | 4% | 
|
| Other | 4% |
|
How well does Viagra work?
iGuard regularly polls our more than 22,800 users taking Viagra (or similar drugs with the same active ingredient(s)) using the Treatment Satisfaction Questionnaire for Medications (TSQM) . This feedback is continuously updated in tables below for the benefit of the iGuard community. To request scores for specific patient subgroups, please contact research@iguard.org.
Average Satisfaction Score
(out of 10)
Average Effectiveness Score
(out of 10)
- 73%
- of patients are confident that the good things about Viagra outweigh the bad things.
- 0%
- of patients wish they were told more before they started taking Viagra.
Common Side Effects of Viagra
iGuard regularly polls our more than 22,800 users taking Viagra (or similar drugs with the same active ingredient(s)) to monitor the development and frequency of side-effects. This feedback is continuously updated in tables and graphs below for the benefit of the iGuard community.
27% of patients experience side-effects on Viagra
< 1% of patients experience signifcant side-effects on Viagra
Most Common Side Effects...
-
Hot Flashes
-
Nasal/Sinus Congestion
-
Headache
-
Abdo Pain/Cramps
-
Light Sensitivity
-
= 10%
Global Patient Feedback for Viagra (Sildenafil) ( Post a comment )
Question/Comment:
do I have to stop taking Viagra before i have any kind of surgery?
57 year old Male – Source: iGuard United States
Posted: 2010-03-07 17:12:44
Question/Comment:
<a href="http://rx1-onlinepharmacy.com/buy_viagra.html">viagra</a> works very good for me
57 year old Male – Source: iGuard United States
Posted: 2010-02-11 19:38:17
Question/Comment:
What are possible side effects when taking Viagra with .4 Flomax?
41 year old Male – Source: iGuard United States
Posted: 2010-01-22 12:59:08
iGuard Answer/Reply:
It is possible that you will experience postural hypotension, or a drop in blood pressure when you first stand up. To counteract this side effect, stand up more slowly. Be aware that you may experience some dizziness, especially when going from sitting to standing or laying down to sitting. Some patients can avoid this by changing positions more slowly. You can also minimize the risk of this side effect by using the lowest effective dose of Viagra should be used when taking Flomax. If you experience dizziness when changing sitting up or standing up and it is severe, make an appointment with your physician to discuss changing your medications.
Posted: 2010-01-22 16:21:49
Question/Comment:
I cut 100mg Viagra tablets in half. Works fine but almost always ends with headache and eye pain. I was not aware that Protopic impacted Viagra. My (former) doctor prescribed both and my new doctor is aware of both. Neither warned me. Thank you iGuard!
58 year old Male – Source: iGuard United States
Posted: 2009-11-24 00:27:06
Question/Comment:
i,m currently on verapamil 240 mg twice a day,hctz 25 mg once a day, enalapril 10 mg once a day
all of these to control my high blood pressure. once a while i use viagra 100 mg after i cut into 2 . but the next day i always suffer headache and dizziness. can anyone tell my what is the best dose of viagra for my case or do i have to cut it in small pieces. thanks
34 year old Male – Source: iGuard United States
Posted: 2009-09-06 04:24:37
Answer/Reply:
I am an 84 year old man who has used <a href="http://www.brandviagra.net/">Viagra</a> daily ever since it became available and it has greatly improved life for me and my young lady, with no ill effects. Incidentally, it lowers my normal <a href="http://www.brandviagra.net/treat-hypertension.htm">hypertension</a> significantly for a few hours, which sometimes confuses my cardiologist.
86 year old Male – Source: iGuard United States
Posted: 2009-12-14 13:59:58
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Comments may be either questions or answers to previously posted questions. Any iGuard.org user may post questions and reply.
38
Patient Comments about
Viagra