When you visit an online website to buy sildenafil generic, make sure to go to a recommended and authentic WHO, and GMP authorized website. Do not worry about the shipping charges as most of these websites offer discounts, which save more than enough money to cover for the shipping charges. Upon receiving the sildenafil generic, Hold your horses before you chug down the pill and read the instructions carefully. In your excitement, do not overdose as high concentration of this drug can lead to nausea, headache, diarrhea, stomach ache and a general awful feeling that makes you feel as if you gulped a gallon of stale beer. Sildenafil generic will not turn you into some stud, and it does not increase the sex drive. The drug stimulates the nerves in the sex organs so that they are able to respond better to stimulation. This means you will see the results of the drug only when you are stimulated. So, make sure to take the drug when you are sure to have sexual activity in the next few hours. The effects wear off gradually depending on the dose.