Personally I began with the smaller amount during those early injections since I usually react strongly to medicines. My physician preferred starting higher to match the study protocol. Knowing my own sensitivity I ended up getting sick that first weekend even on the low amount. It worked out well that I skipped the larger one. My system adjusted fast though and the stomach troubles have faded away by now. All the best!
I'm about to try Tirz out shortly as a beginner. Can anyone who's done it before tell me the things they wish had been clear from day one?