Viagra is not for use by females. Both medications are generic now and can be found at discounted rates, making them more accessible to the public than ever before. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. They are PDE5 inhibitors that allow for increased blood flow to the penis, leading to more frequent and harder erections. It comes as standard tablets, chewable tablets, and as a liquid that you swallow. The information provided is for educational purposes only and is not intended to replace discussions with a healthcare provider.Key facts. 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. Viagra 50mg Tablet 2’S Mkt: Pfizer Ltd. ₹ MRP ₹ ADD TO CART. Viagra Buy prescribed viagra 50mg online at 25% OFF from Netmeds. Discover the uses, side effects, composition, precautions, and dosage of viagra tablet. COD. VIAGRA may not be right for every man, but it has been shown to help approximately 4 out of 5 men get and keep erections hard enough for sex at doses of 50 mg or mg.* * Seventy-two percent, 80%, and 85% of the patients on 25 mg, 50 mg, and mg of VIAGRA, respectively, achieved erections hard enough for sex, compared to 50% on .