u/Hello_You_06

In a previous post I asked about testu and testc
What I meant was TestSust300 and not TestU250

I have a vial of TestU250 in the mix of all my TestC250, just wanted to know how can I use the testu250 vial, l'm on a cruise for the moment taking test c and also on Tirzapetide.
Never used TestU before, would I be better to wait when I go on a blast or can I use it during a cruise?

Sorry I meant to say TestSust300 and not TestU250