Hello skinnyguy. You can't be any skinnier than this skinny guy.
Well, what I call Arimidex Monotherapy has been used to boost testosterone and I document that here:http://www.peaktestosterone.com/Testosterone_Arimidex.aspx
Now you are using it more as erectile dysfunction treatment and that I have not really seen nor do I think there are any studies on it. And Arimidex Monotherapy, from what I have seen is very uncommon and only works for a small percentage of guys.
However, am I suprised that a little Arimidex helps you. Not not all. Most of us, as we age, put on some weight (and lose some muscle but that's another story). This extra weight, along with certain aging processes, cause us to convert more testosterone into estradiol and so many men end up with elevated estradiol.
Now that is not always true for low testosterone men however. If you are low testosterone, it is quite common to be low estradiol as well and many hypogonadal males experience osteopenia and osteoporosis because of it. We've had a couple guys on the board who have experienced bone loss.
So a key thing to remember in my opinion: don't take Arimidex unless you know your estradiol levels. And, I should add, you need to get the correct estradiol test. Remember: we have low estradiol compared to women and so you cannot count on the woman's test.
Now one of our forum members has mentioned a lab in the U.K. that you should be able to use:http://www.peaktestosterone.com/Testosterone_tests.aspx
I don't know anything about it other than what this poster said though, so do your due diligence if you go that route.
But it's very important that you do not go too low with estradiol. Since you're feeling good, you are probably not, but I would not do it without confirming the #s.
Also, if you are overweight, you are much better off losing the weight than taking an AI of course. I can tell you that I dropped 10 pounds and saw my estradiol levels plummet. We skinny guys may be particularly sensitive?
Is Armidex safe long term? Well, I take .5 mg 2 X/week as you may know from reading my story. This is a pretty standard dose for guys on HRT injections over here. So it's basically a mg per week. Now that is much less than a breast or prostate cancer patient would take which is a mg per day. I am counting on that fact plus the fact that Arimidex seems to be side effect free unless you go too high or too low.
But do I have a crystal ball and can say for sure that it will not cause me problems over the decades. No I can't. And, as far as I know, there are no long term studies of this kind of usage. So you and your doc have to decide that one...