At other pharmacies, prices can range from tens to hundreds of dollars. If you have an erection that lasts more than 4 hours, get medical help right away. Patients should always ask their doctors for medical advice about adverse events. First and foremost, be sure that whichever online pharmacy you choose is legitimate, safe, and secure. The information provided is for educational purposes only and is not intended to replace discussions with a healthcare provider.1 Choose your meds Sildenafil, tadalafil, Cialis Daily, and more. 2 Answer health questions Including your blood pressure reading. 3 Medical team review Some states require a . Buy now Viagra® Get started Why Viagra®? ED? NBD Viagra® is FDA approved to treat erectile dysfunction and can be taken as-needed so you’re ready for a good time, . Consumer Reports Best Buy Drugs shares how you might be able to get generic Viagra, known as sildenafil, at a much lower price.