In A more severe allergic reaction is rare but possible. So in theory, if a woman takes Viagra, it could increase blood flow to her genitals.But in reality, there’s less PDE5 in a female’s genitals than there is in a male’s penis. This may help make sex more spontaneous for you.Viagra and Cialis both contain the same type of drug. The generic is considered to be as safe and effective as the original drug.

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You’ll have low levels of the drug in your body after about 4 hours.

Do not use more Viagra than your doctor recommends.If you think you’ve taken too much of this drug, call your doctor. All rights reserved. These studies, which involved 1,797 men, lasted up to 6 months.

But this isn’t a problem for most people.
So, if you’re over 65 years of age, your doctor will usually recommend a starting dose of Viagra for you that’s lower than the typical starting dose. And it hasn’t been studied in women who are breastfeeding. And it’s not recommended in current PE treatment guidelines from the If you’re interested in taking Viagra to treat PE, talk with your doctor.Viagra is approved for use in males ages 18 years and older. It’s not known whether this drug is safe to take during pregnancy.If you have questions about the safety of Viagra use during pregnancy, talk with your doctor.It’s not known if Viagra is safe to take during pregnancy. You won't be able to buy over the counter Viagra connect if you're taking an Viagra should not be taken by men who have taken a dose of You won't be able to buy over the counter Viagra connect if you're taking any of the following medicines, because they can increase the level of sildenafil in your blood and so increase the risk of getting side effects. It also means that sildenafil and Viagra can cause the same side effects.For information on the possible side effects of Viagra, see the section “Viagra side effects” above.Viagra is a brand-name drug, while sildenafil is a generic form of Viagra.

Headaches, as well as flushing and dizziness, occur because Viagra widens certain blood vessels in your body. Below are examples of these side effects.These lists contain up to 10 of the most common mild side effects that can occur with Viagra, with Levitra, or with both drugs (when taken individually).The following list contains examples of serious side effects that can occur with either Viagra or Levitra.The only condition both Viagra and Levitra are used to treat is ED.The use of Viagra and Levitra in treating ED has been directly compared in several clinical studies and compared in several reviews of studies. This means that generic sildenafil is just as effective in treating ED as Viagra is when it’s used at the same doses as Viagra is used. Off-label drug use is when a drug that’s approved for one condition is given for a different condition that’s not approved.

Your doctor may prescribe you a lower Viagra dose if you're taking any of these:Viagra might be less effective in people taking any of the following medicines:Sildenafil tablets are also available without a brand name, ie as the generic medicine. This allows the blood vessels in the penis to stay dilated for longer, which improves blood flow to the penis and helps produce and maintain an erection. You will be unsuitable for Viagra if you are taking nicorandil or nitrates, such as GTN spray or isosorbide mononitrate tablets to treat angina.
Treatment of this condition should not be delayed more than six hours, as this can cause damage to the erectile tissue in the penis and irreversible erectile dysfunction.If you experience a sudden decrease or loss of vision after taking Viagra you should contact your doctor immediately.