I'm a tad cynical about weight loss medication, if there's no accompanying counselling. I can see a parallel with anti-depressants and no counselling, I agree, growstuff, and it is the same with the popular slimming businesses such as Slimming World, Weigh Watchers etc. They do not deal with why people eat more than they need.
I do not criticise anyone for going to a slimming club, or for having injections, I just fear they are short term fixes which is sad, and will likely lead to future emotional overeating.
I don't think, however, that judgement or statements telling people all they have to do is 'X' help either, unless you have been there (and I have) nobody knows the misery of hating yourself because you are overweight, and I was only a couple of stones overweight.