I was waiting for someone to post to help you. I am not sure what you are talking about. I also use a pen, but with follistim. They are supposed to be the same thing. I leave the vial in my pen, have not seen much of it since I pierced it the first time. Are you asking if you should see clear liquid at the tip of the needle? If so, I don't ever see any liquid. I just trust that the pen administered the correct amount that I dialed in. If it did not register correctly, I would imagine you would not be able to push the button in and it would remain at the same amount that you requested.
I don't have a vial that I put in the pen. The pen is already pre-loaded. I just dial 150 on a 300iu pen and then I pushed the button and it did the clicking but I still see clear liquid (not at the end of the needle) but in the bottom of the pen.
If you dialed 150 and you have 300, you should still see some liquid because you only have used less than 1/2. From what I have been told, even though you have a vial of 300IU, they usually put more in there. I would guess that it actually has 325-350 IU in there. The bad thing is that you do not know how much extra they put in there. :)
thanks that makes me feel better.
yep, i've used the 900 iu pen and there's always a little left.