Ok so I made a thread last week about going to my doctor due to performance anxiety issues and he wrote me a cialis prescription. I also got some blood work done, turns out there is a reason why I'm having issues. He said I had the testosterone of an 85 year old man (I'm 24). Apparently I'm in the low 200's and I should be around 500-600 at this age. So I guess my questions are to anyone who's been on replacement therapy. Is an injection/gel/patch the best option and how much does all this cost? Was there any noticeable difference and if there was how long did it take? What are the potential risks? How do they determine dosage? How do you know when to stop treatment?