What is Viagra

Viagra is the trade name of Pfizer, the scientific name for Viagra is sildenafil citrate. Viagra, Cialis and levitra are in the class of medicines known as PDE-5 (Phosphodiesterase type 5) inhibitors.
How dose it work
Viagra and the other PDE-5 inhibitors can help men with impotence or erectile dysfunction it does this by increasing the blood flow into the penis when a man is aroused which in turn provides an erection.
Is Viagra an aphrodisiac?
Viagra is not an aphrodisiac it only works when a man is sexually aroused.
Is Viagra effective?
Different individuals respond in different ways to Viagra, a lot depends upon the underlying cause of a person’s impotence, the severity of any underlying cause and the degree of his sexual stimulation at the time. Viagra in particular has been shown to be effective at helping many men achieve and maintain an erection
How long does it take to work?
Viagra takes anything from 30 minutes to an hour to take affect. If you take Viagra after a meal that has a high fat content, it may take longer than an hour to become effective. However if you take a Viagra tablet on an empty stomach it becomes effective more quickly. Viagra can remain effective for between four and five hours.
What are the side-effects of Viagra?
All medicines can have side effects, Viagra is no exception. Fortunately, Viagra's side effects are limited to mild headaches and facial flushing and less frequently indigestion, a stuffy nose and a blue tint to the vision.
Does Viagra affect blood pressure?
Viagra can lower blood pressure which is not a problem for most men. However Viagra's effect on blood pressure can be dangerous if you take Viagra at the same time as taking a medicine that contains nitrates. Nitrates are one of the medicines that doctors regularly prescribe for angina. If you take Viagra at the same time as taking nitrates, the interaction of the two medicines can cause your blood pressure to fall to a very dangerously low level which could be fatal.
How do I know what dose to take?
VIAGRA comes in different doses (25 mg, 50 mg and 100 mg). If you do not get the results you expect, talk with your GP. You and your GP can determine the dose that works best for you.
- Don’t exceed the daily dose
- Check with your doctor if you think you need a larger dose
- Don’t take Viagra more than once a day
If you are older than age 65, or have serious liver / kidney problems, your doctor may start you at the lowest dose (25 mg) of VIAGRA. If you are taking protease inhibitors, such as for the treatment of HIV, your doctor may recommend a 25 mg dose and may limit you to a maximum single dose of 25mg of VIAGRA in a 48 hour period.
Can I take Viagra with a heart condition?
Your doctor will advise you on whether any medicines you are taking could react with the Viagra.
If you have a heart condition online consultation is not for you. A visit to your GP is essential he can then advise you on whether Viagra is suitable in your situation. If you have a heart condition where sexual activity is not advised, it would not be appropriate for you to take Viagra. Your GP would also need to advise you on whether any medicines you are taking could react with the Viagra.
Men, who are taking medicines that contain nitrates of any kind, at any time, must never use WARNING VIAGRA. This includes nitro-glycerine. If you take VIAGRA with any nitrate medicine, your blood pressure could suddenly drop to an unsafe level.