I can't advise on the drug. But I will tag in
@DavidGrahamJones who I believe has had some experience with the meds in the past? With luck he can impart some advice.
As you say Jaylee, it isn't insulin. Although the aim is to take the same dose regularly, I did forget once or twice. It works by controlling the following things.
1. When food exits your stomach too quickly after you eat, your blood sugar levels can rise out of range.
2. When your liver makes too much sugar, your blood sugar can get too high.
3. When your blood sugar is too high, your pancreas needs to make additional insulin to help regulate your blood sugar levels.
I found that it didn't alter my ability to lose weight, in fact I gained. It was brilliant at flattening out the dawn phenomena (2) and did help control my BG but encouraged me to have a bit more carb again. After 6 months I decided that the constant indigestion, burping, constipation and the £100 a month cost to the NHS wasn't worth the small benefit.
It's worth baring in mind that when I say these things I have reacted adversely to several drugs over the years and the potential pancreas problems is also something I didn't want to chance any more.
It certainly does what it says on the tin. NB Weight loss is not what it's prescribed for. The same drug with a different trade name and a higher cost can be prescribed at a higher dose for weight loss.