ED problem on test

[Bonaparte]

So you dont have enough estrogen making it to the receptor and its killing your sex drive.

Nolva only blocks estrogen in BREAST tissue.
OP, your problem is probably that the Nolva itself is giving you ED issues (but probably not by blocking too much estrogen). I've never read a good explanation for why it does this, but Nolva does have a tendency to cause ED problems in certain guys.
And yeah, 40mg on cycle is retarded. Just get some Adex.

[ythrashin]

I always thought Nolva competed with estrogen at all receptor sites being that its an estrogen agonist.

It may do this better with breast tissue but it would compete with all estrogen at all the receptors.

[ythrashin]

I'm interested if its true that a estrogen agonist can selectively target only BREAST estrogen receptors.

Does anyone have any documentation/studies supporting this?