On sw, you are allowed free foods freely, and I was a green day girl and would go mad over carbs but still managed to loose weight well, and still do now on EE with plenty of carbs. Have your weight losses slowed down which is why you looked at this?
I would suggest that SW by its self should not need extra medication or help as it does work, and if it has slowed down for you then there may be things which can be adjusted before going to things which may have terrible side effects. Like ali, if you are not using it where does it go?!
Hope that doesnt sound to patronising, its not meant to x
Do you do a food diary or go to a group? If you do has your Consultant had a look, and if not post it on here and let people have a look. Sometimes it can be a really small thing which can change from a maintain to loss. It may be something else other than carbs like bread, could be hundreds of reason unfortunately but I now keep a diary of every single day so if a week doesnt go so well I can look back and see what changed, and how I can improve.
I know with ali it "passes through" as oily substance and the stories I have heard really would put me off, and so just as a warning I have not heard of this one to know whether this does the same.
If you have tried so many diets and not lost weight on any of them I would suggest a visit to your doctor.
Of course the common factor here with them all is you . If you are sure you are following any diet honestly, unless there is something wrong with you, you must lose weight.
If you decide to go to your doctor ask for a thyroid check as an under active thyroid can inhibit weight loss.
Are you taking any medication that would stop you from losing weight ?
It is impossible for so many diets to fail, if you are sticking to them.