I am a 35 y/o male and am taking meds for my HIV. I have tried
cialis and got some
side effects. The next ed i was prescribed was viagra. they have given me 25, 50 then 100 mg tabs. i used to be fine with taking half of 100mg and then half of what was left, totaling 75mg. I recently took both halves after months of not using any assistance, and it didn't work at all, until about 36 hours after I took the pill. then I was semi hard, and a cross wind would throw me to attention.