You may have questions related to how Viagra works and how long it lasts in your body. These questions and others are answered below.

How does Viagra work?

Viagra decreases erectile dysfunction (ED) symptoms by helping you get and keep an erection. Erections happen when a protein called cyclic guanosine monophosphate (cGMP) is released, causing more blood to flow into your penis. Then, another protein called phosphodiesterase-type 5 (PDE-5) breaks down cGMP, stopping the erection. In people having difficulty with erections, PDE-5 may work too quickly.

Viagra works by blocking PDE-5 from working. This way, blood flow to the penis can occur and not be stopped by PDE-5. This also widens your blood vessels to allow more blood to flow into your penis.

If you have more questions about how Viagra works, talk with your doctor or pharmacist.

How long does Viagra take to work?

Viagra works quickly after you take a dose. In most people, Viagra works within 1 hour after it’s taken.

It’s possible that Viagra can begin working within 30 minutes of being taken. But other times, it may take up to 4 hours to start working.

If you have questions about how quickly Viagra will work for you, talk with your doctor or pharmacist.

What should you do if Viagra doesn’t seem to work?

If Viagra doesn’t seem to work for you, talk with your doctor. They may recommend that you take a higher dose of the drug to see if that helps the drug work for you.

In other cases, your doctor may recommend a different medication altogether.

Let your doctor know if you have concerns about Viagra not working.

Can you make Viagra work faster?

In most cases, Viagra works within 1 hour after you take a dose. But if you take your dose on an empty stomach, the drug may work faster. Taking Viagra with a meal that’s high in fat may make the drug work more slowly.

If you’d like to know more about this, ask your doctor or pharmacist.

How long does Viagra last?

Viagra works at its best within a few hours after it’s taken.

In most people, the drug is most effective about 1 hour after it’s taken. Over time, Viagra is slowly removed from the body. So over the next few hours after it’s taken, the drug may not work as well.

Talk with your doctor to learn more about how long you can expect Viagra to work.buy Viagra 50 mg online

How long does Viagra stay in your system? What’s its half-life?

The half-life of Viagra is about 4 hours. This means that 4 hours after you take a dose, your body has cleared half of the dose.buy Viagra 50 mg online

In most cases, it takes about 5 half-lives for your body to completely remove a drug from your system. So this means it may take about 20 hours for Viagra to be completely cleared from your body. But as your body clears the drug, it may not be working any longer.