Get a prescription for Revatio. It is 20 mg of Sildenafil. you can take a few for the same dosage as Viagra. I got a prescription and get 30 tablets for $10 at Sam's Club. You have to be Plus Member for that price
http://www.goodrx.com/blog/its-here-...ou-can-afford/
Sam's Plus price list
http://resources.samsclub.com/MediaI...English_V2.pdf