Well... so far, I'm not sure. As I said in one or another post, I didn't have the patience for a week-at-a-time titration, so I've accelerated it a bit, so long as I seem to be handling it ok side-effects-wise. Today is Day 6 and I'm up to the 1.2 dose. I still feel dizzy a couple hours after the injection, but so far, that's the only real side effect I'm noticing. I had a bit of nausea Saturday afternoon, but I'm not convinced it was fro mthe Victoza - that feeling hasn't repeated, so far.
Re: Appetite suppression? I don't know, so far -- It sure didn't stop me from eating a bit more than I probably should have yesterday (we had a barbeque) - though I did skip most, though not all of the carbs. On the other hand, I did have some bread and still my BG never went above 129 -- I bolused 12U for 35g carbs and did a 1.75u correction a couple hours later. Morning BG was 94 -- so I think that went well. Again, though that was more carbs than I usually have on a Sunday evening, and I may have underestimated them a bit, I'm not yet sure that I can attribute the good results to the Victoza -- the meal has a fair bit of protein and probably some fat, so it would have digested very slowly on its own. The good morning BG may be due to the Victoza; however, as it may be preempting my DP/first-foot-on-floor phenomena... I have had good (<100) morning BG's the last two days.
Otherwise, I have not noticed any need to change anything, so far. My basal rates seem fine just as they are, giving me very steady numbers between meals. I have not seemingly needed to adjust my bolus calculations. On the other hand, I had smaller peaks from higher-carb Friday night and Saturday meals than I have in recent weeks -- though that, too, is not unheard of for me. -- as weekend results have varied widely in the past, I don't think I can judge success on one reasonable good weekend (I did hit 179 Saturday night, but never went over 140-something on Saturday). Will take a few weeks of watching to see if this is a trend.
Prior to this trial, I have not been chasing insulin very often, if ever. I halved all my basals over a year ago when I changed my eating habits somewhat - and have tweaked them a bit here and there throughout the year. I'd rarely seen even moderate lows, and even more rarely lows that required me to eat to correct. As a result, I don't think that will be an area of improvement for me. My ratios and corrections did not change enough with my basal changes to make any changes to my pump settings. I've had reasonable success with the currrent rates (and occasional "fudged" rates). I expect I would notice if I suddenly needed less insulin for carbs or corrections. Will watch.
... one of those (MANY!) times when I am very thankful for the Dexcom to help guide my way...