Buy Viagra and other medications from a pharmacy that is US licensed and the medications should be FDA approved. There are many pharmacies who claim to be FDA proved but actually they are not. And when you buy medications from such pharmacies then there are chaces that the medications may not be origional or not belonging to the legal manufacturers. So whenever you want to order any medication from a pharmacy, you should make sure that it is US licensed. “Mediwax.com” for instance is a US licensed online pharmacy and their medications are FDA approved. And the medications are sold at discounted rates.