Without the branding and advertising, the generic version is able to be sold at a cheaper price than the branded versions. We also have an article on Erectile Dysfunction myths. Or, to avoid the brand name, the drug Sildenafil Citrate. Never give it to other people even if their condition appears to be the same as yours. Take daily tablets to help you get an erection at any time so you can enjoy those spontaneous moments. This is the one you can get over the counter. More information on Viagra for women is available.Sildenafil tablets for erectile dysfunction come in different strengths ranging from 25mg to mg. The usual dose is 50mg, when you need it. Do not take it more than once a day. .  · Manufacturer’s PIL, Viagra® 25 mg, 50 mg, mg tablets; Upjohn UK Ltd, The electronic Medicines Compendium. Dated November British National . About sildenafil (Viagra) Sildenafil is a medicine used to treat erection problems (erectile dysfunction). Sildenafil is also sometimes used to treat pulmonary hypertension (high .