In the blood vessels feeding the penis, Viagra relaxes the muscle cells, allowing for an increase in blood flow. Blood entering the penis causes erections. If you apply the therapy properly, you'll see the greatest effects. Take Generic Viagra at least an hour before the planned relationship, since it typically takes 30 to 60 minutes to take action. Food, drink, and erotica, however, may all alter how long it takes Viagra to start working. Viagra typically lasts for four hours.
Therefore, it's crucial that you don't take Viagra too close to the time you want to have sex. For instance, avoid taking Viagra in the morning if you intend to have a physical at night. If you wait that long, the effects of Viagra will probably be gone.