The pattern of responses was similar for the other principal question, the ability to achieve an erection sufficient for intercourse. Other uses for this medicine This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. If too much is used, the chance of side effects is increased. Do not stop taking sildenafil without talking to your doctor. These effects on the metabolite are not expected to be of clinical consequence. To use the oral liquid: Shake the bottle well for at least 10 seconds before each use. If you buy sildenafil for erectile dysfunction, it can also be known by the brand names Viagra, Aronix, Liberize and Nipatra.2 days ago · How we vet brands and products. If you’re interested in buying Viagra online, five of the best options available are Hims, Roman, Lemonaid, Optum Store, and REX MD. Read on for full details on. Ad93% of users reported improved confidence in achieving an erection from using Eddie. ED Treatment without doctor’s visits, injections, or surgical implants. Get Eddie for ED. Sildenafil (Viagra) is a medicine used to treat erectile dysfunction (ED, also called impotence). Sildenafil works by helping to relax the blood vessels in the penis, allowing more blood to flow in and cause an erection. You should take sildenafil about an hour before planned sexual activity, so it has time to work.